This page is left blankfmipa.undiksha.ac.id/iconmns2019/files/Conference Book...vi On 31st August,...

This page is left blank

i

The 2nd IConMNS 2019

“Developing Mathematics, Natural Sciences, Marine, and Educational

Researches Oriented to Sustainable Development Goals”

Organized by Faculty of Mathematics and Natural Sciences Universitas Pendidikan Ganesha

Layout

Dr. I Wayan Puja Astawa, M.Stat.Sci.

Putu Kartika Dewi, M.Sc.

Putu Widiarini, M.Pd., M.Sc.

Ni Luh Putu Ananda Saraswati, M.Si.

Luh Mitha Priyanka, M.Pd.

Cover Design

Sony Wirananda

ii

CONFERENCE BOOK

THE 2ND INTERNATIONAL CONFERENCE

ON MATHEMATICS AND NATURAL SCIENCES

(IConMNS) 2019

https://itembrowser.com/item.php?id=841

Bali, August 30th – 31st, 2019

iii

COMMITTEE

Advisory Board

Prof. Dr. I Nengah Suparta, M.Si. (Ganesha University of Education, Indonesia)

Prof. Dr. Ida Bagus Jelantik Swasta, M.Si (Ganesha University of Education, Indonesia)

Dr. I Gusti Lanang Wiratma, M.Si. (Ganesha University of Education, Indonesia)

Dr. Sri Handayani ( Universitas Negeri Yogyakarta)

Dr. Jane Sylvia Annatje Sumarauw (Universitas Negeri Manado)

Dr. Suyatno, M.Si ( Institut Teknologi Sepuluh November Surabaya)

Dr. I Gusti Made Ngurah Budiana, S.Si., M.Si. ( Universitas Nusa Cendana NTT)

Prof. Dr. Sabine Fechner (Paderborn University, Germany)

Prof. Ernesto Mollo, Instituto Di Chimica Biomolecolare, Italia.

Prof. Kazuhito Kawakita, Ph.D (Nagoya University)

Prof. Sathoshi Ohkura, Ph.D (Nagoya University)

Dr. Eliani Ardi, Astrophysic (Kyoto International University)

Dr. Martina Restuati, M.Si (Universitas Negeri Medan)

Prof Nyoman Adi Asmara Giri (BBRPBL, Gondol Buleleng)

Scientific Committee

Drs. I Wayan Muderawan, M.S.,Ph.D.

Dr. rer. nat. I Wayan Karyasa, S.Pd., M.Sc.

Prof. Dr. Phil I Gusti Putu Sudiarta, M.Si.

Prof.Dr. I Gusti Putu Suharta,M.Si

Prof.Dr. I Wayan Santiasa, M.Si

Prof. Dr. I Wayan Suastra, M.Pd.

Prof.Dr. Ketut Suma,MS

Prof. Drs. I Wayan Subagia,M.Sc, PhD

Prof.Dr . Wayan Redhana,M.Si

Prof. Dr. Made Sutajaya,M.Kes

Dr. rer. nat. I Gusti Ngurah Agung Suryaputra, S.T., M.Sc.

I Wayan Mudianta, S.Pd., M.Phil., Ph.D.

Dr. I Nyoman Sukajaya, M.T.

Dr. I Wayan Sukrawarpala, M.Sc.

Dr. I Nyoman Dodik Prasetya,S.Si, M.Si

Prof. Dr. Ni Putu Ristiati, M.Pd.

Dr. I Gede Ari Yudasmara, M.Si.

Dr. Ida Bagus Putu Mardana

Dr . Ir Ketut Sri Marheni Julyasih,M.Si

Organizing Committee

Dr. I Gede Aris Gunadi, MI.Kom.

Dr. Gede Iwan Setiabudi, M.Si.

Putu Pasek Suryawan, M.Pd.

Drs. I Wayan Muderawan, M.S., Ph.D.

Dr. I Wayan Puja Astawa, M.Stat.Sci.

I Gusti Nyoman Yudi Hartawan, M.Sc.

Prof. Dr. I Gusti Putu Suharta, M.Si.

Putu Prima Juniartina, M.Pd.

Ni Luh Kasnawati, SE.

Drs. Dewa Putu Subamia, M.Pd.

iv

I Made Suarsana, M.Si.

v

WELCOME ADDRESS: CHAIR OF THE COMMITTEE

Om Swastyastu, Assalamualaikum Wr. Wb., Namo Buddhaya, Shalom,

The honourable Rector of Universitas Pendidikan Ganesha , and all Vice Rectors.

The Head of Research Institute and Community Service

Universitas Pendidikan Ganesha.

The Dean of the Faculty of Mathematics and Natural Sciences and

all Vice Deans,

The Speakers and Participants,

Ladies and Gentlemen,

First of all, let us praise and thank The Almighty God for His graces bestowed upon

us. Allow me to heartily welcome all participants to Bali. It is my pleasure and

privilege to extend our warmest welcome to all participants of the IConMNS 2019,

the 2nd International Conference on Mathematics and Natural Sciences 2019 with

the theme of “Developing Mathematics, Natural Sciences, Marine, and Educational

Researches Oriented to Sustainable Development Goals”. The purpose of this

conference is to promote and encourage the exchange of thoughts and ideas of the

advanced research in the fields of mathematics, natural sciences, education, marine,

and computer science.

The Faculty of Mathematics and Natural Sciences, Universitas Pendidikan Ganesha

is proud to organized and host this conference. We received 217 abstract

submissions, of which 194 manuscripts will be presented tomorrow on 31st of

August. Moreover, the conference is also attended by 34 non-presenter participants.

To all presenters and participants, thank for your enthusiastic responses to the

conference. Your present in this conference is highly appreciated.

In this special occasion, let me also give a special welcome to our keynote and invite

speakers who are pleased to make contributions to our conference and share their

new research ideas with us. They are Prof. Dr. Susanne Bogeholz from Department

of Biology Education, Faculty of Biology and Psychology Albrecht-von-Haller-

Institute for Plant Sciences Waldweg, Gottingen, Germany; Prof. Dr. Ernesto Mollo

from Institute of Biomolecular Chemistry, Italia; Prof. Kazuhito Kawakita, Ph.D

from Nagoya University, Japan; Prof. Sathoshi Ohkura from Nagoya University,

Japan; Prof. Dr. Phil IGP. Sudiarta from Universitas Pendidikan Ganesha, Indonesia;

Dr. Eliani Ardi from Osaka University, Japan; Prof. I Nyoman Adi Asmara Giri

from Institute for Mariculture Research and Fishes Extension (IMRAFE), Gondol

Buleleng Indonesia.

vi

On 31st August, we have 7 parallel presentation sessions including mathematics

education, mathematics, computer science, environmental science, marine and

fisheries science, chemistry, chemistry education, natural science education, physics,

and physics educations. The platform is ready, so please seize this opportunity to

show your thoughts, ideas, and innovations confidently.

Wish you will enjoy this conference, contribute effectively toward it and bring home

the knowledge, experiences, relations, and happy memories. Thank you for your

attention and have a nice day.

Om, Shanti, Shanti, Shanti, Om; Wassalamualaikum Wr. Wb.; Sadhu, Sadhu,

Sadhu; Shalom

Denpasar, August 30th, 2019

Chair,

I Gede Aris Gunadi

vii

RUNDOWN OF THE 2ND IConMNS 2019

Day 1: Friday, August 30th, 2019

Time Program

07.30 – 08.30 Registration

08.30 – 09.30 Opening Ceremony

Welcome Dance “Gadung Kasturi”

Indonesia Anthem

Prayer

Welcoming Speech from the Chair of The 2nd IConMNS 2019

Opening Speech from Rector Universitas Pendidikan Ganesha

Token of Appreciation and Photo Session.

09.30 – 10.00 Coffee Break

10.00 – 10.50 Plenary Session 1:

Prof. Dr. Ernesto Mollo (Italia/Keynote Speaker)

Moderator : I Wayan Mudianta, S.Pd., M.Phil., Ph.D.

10.50 – 11.40 Plenary Session 2 :

Prof. Kazuhito Kawakita (Japan/Keynote Speaker)

Moderator : Dr. I Nyoman Dodik Prasetia, S.Si., M.Si.

11.40 – 13.00 Lunch


Prof. Dr. Susanne Bogeholz (Germany/Keynote Speaker)

Moderator : Prof. Dr. Ni Putu Ristiati, M.Pd.


Prof. Dr. Phil. IGP Sudiarta, M.Si. (Indonesia/Keynote Speaker)

Moderator : Dr. I Nyoman Sukajaya, M.T.



Prof. Sathoshi Ohkura, P.h.D (Japan/Invited Speaker)

Moderator : Dr. Gede Iwan Setiabudi, S.Pd., M.Si.


Dr. Eliani Ardi, Astrophysic (Japan/Invited Speaker)



Prof. I Nyoman Adi Asmara Giri (Indonesia/Invited Speaker)


16.25 – 16.55 Discussion Invited Speaker’s Topic

viii

Day 2 : Saturday, August 31th, 2019

Time Program

07.00 – 08.00 Registration

08.00 – 08.15 Parallel Session















12.00 – 13.00 Lunch


















17.30 – 18.00 Closing Ceremony

ix

PARALLEL SESSION SCHEDULE OF THE 2nd IConMNS 2019 Day 2 : Saturday, August 31th, 2019

ROOM 1

Topic : Mathematics Education Moderator : Ni Luh Putu Ananda Saraswati, S.Si., M.Si.

Time ID Presenter Title 08.00 – 08.15

IConMNS 147

Ratih Ayu Apsari Why should you reverse the order when dividing a fraction? A study of pre-service mathematics teachers’ pedagogical content knowledge in fractional concept.

08.15 – 08.30

IConMNS 061

I Wayan Puja Astawa

Exploring the mental structure: classification of mental models of student mathematical conjecture on open ended problems.

08.30 – 08.45

IConMNS 004

I Made Arnawa Improvement a positive attitude towards abstract algebra trough apos theory approach.

08.45 – 09.00

IConMNS 084

I Komang Sukendra

The effect of open-ended learning models on understanding concept by control of numeric trainers of students.

09.00 – 09.15

IConMNS 079

I Gusti Putu Suharta

What, why, and how the research design in mathematics education.

09.15 – 09.30

IConMNS 105

Gusti Ayu Mahayukti

The influence of edmodo assignment method towards students’ motivation and achievement on learning matemathics.

09.30 – 09.45

IConMNS 077

I Wayan Sumandya & I Gusti Agung Handayani

Developing realistic mathematics education (RME) oriented video to advance vocational school students’ higher order thinking skills (HOTS).

09.45 – 10.00

IConMNS 198

Ni Nyoman Parwati

Types of student errors in solving mathematical problems.

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 140

I Gusti Ngurah Pujawan

The effect of authentic problem-oriented learning resources with maple on financial mathematics and linear programing learning outcomes viewed from initial ability.

10.45 – 11.00

IConMNS 112

I Wayan Widana The effect of digital literacy on the ability of teachers to develop HOTS assessment.

11.00 – 11.15

IConMNS 148

Ummu Fajariyah Akbari

Introducing and developing informal inferential reasoning based on APOS theory for 8th grade students.

11.15 – 11.30

IConMNS 019

Ni Wayan Arisujati The influence of inquiry learning method with open ended worksheet towards quantitative reasoning and self-esteem.

11.30 – 11.45

IConMNS 052

Kadek Mira Pratiwi The effect of guided discovery learning model assisted by open-ended student worksheets

x

ROOM 1


Time ID Presenter Title towards mathematical problem solving ability reviewed of students’ emotional intelligence.

11.45 – 12.00

IConMNS 059

Ni Luh Made Manik Widayani

Collaborative learning devices contain of local culture (Tri-Hita-Karana) to improve students’ mathematics conceptual understanding and students’ attitude of respect.

12.00 – 13.00

Lunch

13.00 – 13.15

IConMNS 099

Ni Luh Gede Sri Suardani

Mathematical habits of mind (MHM) learning strategy on students' mathematical problem solving ability of the 10th grades viewed from formal reasoning.

13.15 – 13.30

IConMNS 142

Anak Agung Ayu Sita Pramayudi

Classification of solving non-routine mathematical problems of 8th grade students

13.30 – 13.45

IConMNS 143

Putu Yulia Prawestri

The effect of online discussion in blended learning on the mathematical concept comprehension and attitude of the 8th grade students of SMP Negeri 1 Mengwi.

13.45 – 14.00

IConMNS 097

I Wayan Suantara Evaluation of implementation of content standards and standard processes on mathematical learning case study in grade 4 Bali Kiddy Primary School.

14.00 – 14.15

IConMNS 098

Ni Made Darmini Learning trajectory of sequences and series using contextual approach assisted by socratic questioning to develop students’ critical thinking skills.

14.15 – 14.30

IConMNS 087

Dewa Gede Agung Putra Nugraha

The effect of blended learning model to conceptual understanding and procedural fluency.

14.30 – 14.45

IConMNS 037

Putri Anugrah Cahya Dewi

Developing mathematical comic based characters’ education to improve problem solving skills in peer-tutoring.

14.45 – 15.00

IConMNS 086

I Dewa Gede Putra Ardinata

Developing geogebra mathlet on geometry transformation oriented ikrar strategy to improve students’ mathematical problem solving ability.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 159

Ni Putu Puspita Dewi Palgunadi

Effectiveness of the use of geogebra in mathematics learning.

15.45 – 16.00

IConMNS 151

I Dewa Made Krisna Yasa

A content analysis of implementation of blended learning approach in Indonesian 2013 Curriculum.

16.00 – IConMNS Luh Diah Praba Content and online discussion strategies

xi

ROOM 1


Time ID Presenter Title 16.15 150 Patni development in blended learning to improve

mathematical learning outcomes students in grade 8 SMP Negeri 1 Mengwi.

16.15 – 16.30

IConMNS 36

Ni Wayan Ina Sukma Dewi

Development of BLCS Learning Devices Based On Traditional And Computer Explorative Media To Improve Mathematical Problem-Solving Skills.

16.30 – 16.45

IConMNS 146

I Made Suarsana Developing Interactive Videos with Sign Language as a Learning Resources on fraction topics for junior high school hearing-impaired students.

16.45 – 17.00

IConMNS 144

Made Juniantari Validity of introduction to basic mathematics teaching materials based on conceptual understanding procedures models and character education.

17.00 – 17.15

IConMNS Parallel Session

17.15 – 17.30


xii

ROOM 2

Topic : Mathematics; Mathematics Education Moderator : I Gusti Nyoman Yudi Hartawan, S.Si., M.Si.


IConMNS 003

Anak Agung Gede Ngurah

On magic and antimagic total labelings of graphs.

08.15 – 08.30

IConMNS 015

Lh Wiryanto Contraction coefficient of flow through a sluice gate

08.30 – 08.45

IConMNS 016

Hari Purnomo Susanto

The application of fuzzy system to predict math anxiety using math self-efficacy and attitudes data.

08.45 – 09.00

IConMNS 195

Aulia Indra Pangestika

Vertex irregular total k-labeling on generalized petersen graph.

09.00 – 09.15

IConMNS 049

G K Gandhiadi Structural model of internal factors that affecting tourism business performance in jembrana regency of Bali.

09.15 – 09.30

IConMNS 201

I Made Candiasa Development of folklore-based cartoons as geometry learning media for special education students.

09.30 – 09.45

IConMNS 028

I Putu Eka N. Kencana

Quantitative approach to study the role of families and school environments on Juvenile Delinquency in Denpasar city.

09.45 – 10.00

IConMNS 029

Ni Made Dinda Pratiwi

Forecasting farmer exchange rate in Bali province using seasonal autoregressive integrated moving average (SARIMA) method.

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 030

I Ketut Restu Wiranata

The prediction of inflation rate in denpasar city using artificial neural network by considering foodstuffs prices.

10.45 – 11.00

IConMNS 165

Ida Ayu Kade Suryani

Geogebra-based assessment development to improve student motivation and literacy in mathematics.

11.00 – 11.15

IConMNS 038

Ni Kadek Anna Saputri

The difference of influence of ARIAS learning model aided with problem card and those aided with students worksheet toward students’ understanding of concept and mathematics interest.

11.15 – 11.30

IConMNS 175

Rosalia Made Veny Nidia Sari

Effectiveness of the creative problem solving learning model in mathematics learning.

11.30 – 11.45

IConMNS 181

Putu Winy Srinivasa

The effect of inquiry learning models in mathematics learning: a content analysis.

11.45 – 12.00

IConMNS 182

Kadek Pasek Budarsini

Constructivism analysis in mathematics learning education.

12.00 – 13.00

Lunch

13.00 – IConMNS Putu Gede Widhy Content analysis about mathematic learning

xiii

ROOM 2

Topic : Mathematics; Mathematics Education Moderator : I Gusti Nyoman Yudi Hartawan, S.Si., M.Si.

Time ID Presenter Title 13.15 183 Adnyana that helped with technology. 13.15 – 13.30

IConMNS 189

Ni Putu Paramita Wulandari

Effectiveness of treffinger learning model in mathematics learning.

13.30 – 13.45

IConMNS 166

Ni Kadek Kasi Widiantari

Numerical information as memory enhancement in alzheimer's patients.

13.45 – 14.00

IConMNS 169

Dewa Ayu Oka Setiawati

Content analysis of grade IX curriculum mathematics student book K13 based on Bell’s criteria

14.00 – 14.15

IConMNS 171

Ni Luh Putu Diani Nariyanti

Literature study on vertical equating test of rasch model to measure the development of student cognitive ability in mathematic lessons.

14.15 – 14.30

IConMNS 162

Putu Linda Lestari Influence of anxiety in mathematics learning.

14.30 – 14.45

IConMNS 163

Ni Luh Heni Purnamayanti

Content analysis of 11st grade mathematics specialization’s student book based on HOTS problem criteria.

14.45 – 15.00

IConMNS 145

Muhamad Ali Misri Propositional Proofing Techniques application in Algebraic Structure Research.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 172

Pande Putu Kurniawan

Content analysis of mathematical basic competencies.

15.45 – 16.00

IConMNS 160

Ni Made Shinta Teja Riani

Eectiveness of the use cas technology (computer algebra system) in mathematical learning.

16.00 – 16.15

IConMNS 161

Putu Nita Listiari The effectiveness of STEM (science, technology, engineering, and mathematics) in mathematics learning

16.15 – 16.30

IConMNS 186

Ni Made Ary Widaryanti

Implementation of blended learning.

16.30 – 16.45

IConMNS 053

Maxrizal & I Gusti Nyoman Yudi Hartawan.

A novelty public key cryptosystem based on circulant matrix.

16.45 – 17.00

IConMNS 121

I Gusti Nyoman Yudi Hartawan

Arimax model in forecasting stock price.

17.00 – 17.15


17.15 – 17.30


xiv

ROOM 3

Topic : Computer Science; Mathematics Moderator : Dr. I Nyoman Sukajaya, M.T.


IConMNS 115

Widyawati Choirijah

Fuzzy logic in the navigation of line follower robot.

08.15 – 08.30

IConMNS 177

Jacob Seleky Expected-based VAR forecasts and its assessment of accuracy.

08.30 – 08.45

IConMNS 212

Risma Yulina Wulandari

Super Vertex Anti-magic Total Labelling of T L(n)

08.45 – 09.00

IConMNS 131

Nursyiva Irsalinda Determining attribute weights in fuzzy multi-attribute decision making (FMADM) using technique for order preference to ideal solution (TOPSIS).

09.00 – 09.15

IConMNS 116

Yudi Adi Dynamical behavior of leukemic cells with chemotherapy in acute myeloid leukemia.

09.15 – 09.30

IConMNS 024

I Wayan Sudarsana

On the Ramsey number for cycle with respect to multiple copies of wheel on five vertices.

09.30 – 09.45

IConMNS 221

Budi Warsito & Rukun Santosa

Graphical interface of genetic optimization in neural network modelling for time series.

09.45 – 10.00

IConMNS 128

Erma Elviana Parameters estimation of rayleigh distribution in survival analysis on type II censored data using the Bayesian method.

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 191

Muhammad Sopian Sauri

Nonparametric regression mixed model spline truncated and kernel on the percentage of malnourished children under five in NTB Province.

10.45 – 11.00

IConMNS 193

Nurul Fitriyani Spline and kernel nonparametric regression models on children growth in West Nusa Tenggara.

11.00 – 11.15

IConMNS 222

Tatik Widiharih Efficiency nonminimally supported design for two parameters weighted exponential model.

11.15 – 11.30

IConMNS 196

Mustika Hadijati Particle swarm optimization on mixed spline truncated and kernel nonparametric model of the percentage of malnutrition in West Nusa Tenggara.

11.30 – 11.45

IConMNS 190

Neva Satyahadewi & Hendra Perdana

Rplugin.actuaria: a package graphical user interface open source for actuarial analysis using R software.

11.45 – 12.00

IConMNS 167

Agustina Purnami Setiawi

Effectiveness of problem based leraning models with geogebra in mathematics learning.

12.00 – 13.00

Lunch

xv

ROOM 3

Topic : Computer Science; Mathematics Moderator : Dr. I Nyoman Sukajaya, M.T.


IConMNS 152

I Gusti Agung Sri Kusuma Sari

Effect of eliciting activities models in mathematics learning.

13.15 – 13.30

IConMNS 154

Putu Mahendra Adi

Effectiveness of flipped learning models in mathematics.

13.30 – 13.45

IConMNS 074

Putu Rika Sahriana Story of math: a serious game based-learning for improvement of students achievement in time unit conversion.

13.45 – 14.00

IConMNS 031

Putu Adi Gunawan Does the gold jewellery price affect the fashion industry? An ANN approach.

14.00 – 14.15

IConMNS 184

Ni Putu Juniantari Implications of the application of project based learning (PjBL) in mathematics.

14.15 – 14.30

IConMNS 072

Riska Savitri A lower bound for irregularity strength of the complete graph of power two vertices.

14.30 – 14.45

IConMNS 070

Kadek Arya Teguh Raharja

Let's help with math: A serious game for the 3rd grade elementary school students in plane geometry.

14.45 – 15.00

IConMNS 071

M Damurrosysyi A captain math mathematic: an educational game for the 5th grade of elemenraty school students in weight-unit conversion.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 138

Darwan Use of Meyer Wavelet in Analyzing 12 Lead Electrocardiogram Images

15.45 – 16.00

IConMNS 119

Marcelinus A.S. Adhiwibawa

Biodiv Checker: mangrove ecological monitoring using UAV and artificial intelligence.

16.00 – 16.15

IConMNS 025

Ni Kadek Ariasih Expert system to diagnose diseases of mental health with forward chaining and certainty factor.

16.15 – 16.30

IConMNS 034

Prastyadi Wibawa Rahayu

Combination of Analytic Hierarchy Process Method and Simple Additive Weighting.

16.30 – 16.45

IConMNS 100

Ni Putu Sinta Noviyanti

The Influence of MEA’s assisted by PISA’s Problem Solving Tasks towards the Mathematics Literacy of the 8th Grades of SMPN 4 Kuta Selatan

16.45 – 17.00

IConMNS 157

I Nyoman Budayana

Graceful labeling for variation of chain graph S_m-Ch(nC_4 )-S_k.

17.00 – 17.15

IConMNS 017

I Gede Aris Gunadi & Mahesa

Detection of Coffee Bean Damage in the roasting process based on Shape features analysis.

17.15 – 17.30


xvi

ROOM 4

Topic : Environmental Science; Fisheries Science; Marine Science Moderator : Prof. Dr. I Made Sutajaya, M.Kes.


IConMNS 014

Maria Niken Tri Ubaya Sakti

Impact of geomembrane application on increasing the capacity of salt production by local communities: case study in Buleleng Regency.

08.15 – 08.30

IConMNS 009

Ni Putu Ristiati Exploration of antibiotic producing bacteria in soil in West Bali National Park.

08.30 – 08.45

IConMNS 093

Hendra Pradana Water quality management for surface water resources: system dynamics (SD) approach.

08.45 – 09.00

IConMNS 208

John D. Kalor The health status of mangrove ecosystem and fisheries potential of demta-jayapura bay papua.

09.00 – 09.15

IConMNS 007

Andrianto Setiawan

Coral Reef Response to Antifeedant test of raw extract of nudibranchia Phyllidiella nigra at Pramuka Island, Kepulauan Seribu, DKI Jakarta.

09.15 – 09.30

IConMNS 149

Reagan Septory Oxygen concentration dynamic in high density culture of abalone Haliotis squamata.

09.30 – 09.45

IConMNS 055

Gusti Ngurah Permana

Evidence of Loss Genetic Variation In Abalone, Haliotis squamata Hatchery.

09.45 – 10.00

IConMNS 122

Epa Paujiah Community of Estuaries Fish, Cianjur, West Java based on temporal of lunar cycles and spatial differences.

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 039

Maria Niken Tri Ubaya Sakti

Effect of geomembrane and prism greenhouse methods in salt crystal formation.

10.45 – 11.00

IConMNS 173

Dodik Prasetia Conflicting or synergistic interaction between tourism and marine protected areas in Lembongan Island.

11.00 – 11.15

IConMNS 082

Haryanti Haryanti The effect of feed supplement on growth, survival rate and immunity response of Pacific white shrimp Litopenaeus vannamei.

11.15 – 11.30

IConMNS 083

Diah Ayu Satyari Utami

Study of the best dose of organic matter from tiger shrimp pond (penaeus monodon) to the quantity and quality of tetraselmis sp. based on fluorescent protein expression.

11.30 – 11.45

IConMNS 085

Siluh Putu Sri Dia Utari

The using of salt and sodium tripoliphosphat (STPP) for the quality of fish nugget from cattle fish (Hyposarcus pardalis).

11.45 – 12.00

IConMNS 120

Ketut Mahardika Impact of formalin treatment in sea bass (lates calcarifer) infected with iridovirus.

12.00 – 13.00

Lunch

xvii

ROOM 4



IConMNS 199

Ida Bagus Jelantik Swasta

The study about development model of tourism awareness coastal village as strategy in marine tourism build in Buleleng Regency Province of Bali.

13.15 – 13.30

IConMNS 164

Astuti Ni Wayan Widya

Single cell protein as feed ingredients for hibrid grouper rearing.

13.30 – 13.45

IConMNS 095

Gede Ari Yudasmara

Electrical stimulation in the ornamental coral cultivation.

13.45 – 14.00

IConMNS 012

Shasa Chairunnisa Changes in fishermen’s activities after the construction of Afsluitdijk (Case Study: Fishermen in Urk, Flevoland Province, The Netherlands)

14.00 – 14.15

IConMNS 092

Ni Kadek Dian Dwi Lestari

Chromophoric dissolved organic matter (CDOM) in spring water: the effect of precipitation.

14.15 – 14.30

IConMNS 050

Noar Muda Satyawan

Existing conditions of coral reefs in Labuhan Pandan Waters Eastern Lombok, Post Lombok 7.0 richter scale earthquake.

14.30 – 14.45

IConMNS 216

Ibnu Rusdi The survival rate of abalone haliotis squamata cultured on sea ranching method in two different type of waters.

14.45 – 15.00

IConMNS 217

Kadek Lila Antara Differences of characteristics and growth rate of seagrape seeds (caulerpa lentillifera) from Madura, Situbondo and Bali.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 180

Afifah Nasukha The study on sediments organic enrichments at marine culture site of pegametan bay, Bali Province.

15.45 – 16.00

IConMNS 046

Nyoman Martini The effect of providing different types of liquid organic fertilizer on silk worm (tubifex sp) growth.

16.00 – 16.15

IConMNS 080

Muth Mainnah Breaking strength and elongation of pineapple leaf ropes and chitosan combination for fishing gear material.

16.15 – 16.30

IConMNS 170

Gede Iwan Setiabudi

Changes in fish species Composition in Pantai. Penimbangan Buleleng Marine Ecosystems

16.30 – 16.45

IConMNS 207

I Made Sutajaya Implementation of Tri Hita Karana with socio-cultural ergonomic oriented on the Kecak dance performance to improve community health and supporting cultural tourism in Peliatan Ubud Gianyar.

16.45 – 17.00


xviii

ROOM 4




17.15 – 17.30


xix

ROOM 5

Topic : Chemistry; Chemistry Education; Natural Science Education Moderator : Putu Septian Eka Adistha Putra, S.Pd., M.Si.


IConMNS 125

I Wayan Muderawan

Chemical composition of the essential oils from Red Citrus Maxima Cv. Bali isolated by steam distillation and solvent extraction.

08.15 – 08.30

IConMNS 043

Cucu Zenab Subarkah

Using of electrolysis learning media for developing high order thinking.

08.30 – 08.45

IConMNS 109

Maria Ulfa Alkaline activation of marble-like carbon structure and it's application for inflammatory adsorption.

08.45 – 09.00

IConMNS 118

Edi Setiyono Pigment-producing bacteria isolated from Kondang Merak Beach, Malang, East Java.

09.00 – 09.15

IConMNS 124

Melanie Microencapsulation of rukem fruits (flacourtia rukam zoll.&mor.) extract using maltodextrin with spray drying method.

09.15 – 09.30

IConMNS 091

I Wayan Suja Mental model of prospective teachers on structure and properties correlation of organic compounds.

09.30 – 09.45

IConMNS 114

Wayan Subagia Roles model of teachers in facilitating students learning viewed from constructivist theories of learning.

09.45 – 10.00

IConMNS 139

Siti Agustina & Eva Oktarina

The process of making beta-carotene emulsion as an antioxidant from red virgin palm oil (RVPO)

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 136

Siti Maryam Levels of anthosyanin and antioxidant activity of grape skin (vitis vinifera l) local of waste making process of red wine.

10.45 – 11.00

IConMNS 137

Silvie Ardhanie Aviandharie

TiO2 Purification from Ilmenite the tin industry by-product for pigment

11.00 – 11.15

IConMNS 179

Budi Hastuti Adsorption of methylene blue dyes using pectin membrane.

11.15 – 11.30

IConMNS 214

I Nyoman Tika A novel hydrogen peroxide sensor based on bakteria peroxidase thermostable immobilized on egg shell membrane modified do meter electrode.

11.30 – 11.45

IConMNS 027

I Wayan Redhana Profiles of environmental literacy of senior high school students based on gender

11.45 – 12.00

IConMNS 023

I Gusti Made Ngurah Budiana

Antibacterial evaluation of 2,4-dihidroxy benzoic acid on eschercia coli and vibrio alginolyticus

12.00 – 13.00

Lunch

13.00 – IConMNS I.B.N. Sudria Pre-experiment assignment on drafting of

xx

ROOM 5


Time ID Presenter Title 13.15 078 guided investigation plan in optimizing

classroom inquiry learning. 13.15 – 13.30

IConMNS 133

Lina Mahardiani Utilization of banana peel as source of pectin for edible coating.

13.30 – 13.45

IConMNS 110

Vina Dwi Putriani Students’ mental models in acid-base topic based on gender.

13.45 – 14.00

IConMNS 111

Pradnyana Negara Profile analysis of mental models of class 10th-grade students on reduction and oxidation topic.

14.00 – 14.15

IConMNS 113

Luh Gede Suryani Analysis of students’ learning interest toward chemistry.

14.15 – 14.30

IConMNS 126

Ida Farida Learning media based on three level representation and inquiry for electrolysis cell materials.

14.30 – 14.45

IConMNS 187

Putri Lusiana Practicality test of a students’ worksheet (LKS) based on a scientific approach assisted by a simple chemistry practicum in the basics of acid base titration.

14.45 – 15.00

IConMNS 022

I Gusti Made Ngurah Budiana

Havy metal cations adsorption by cinnamoyl C-methylcalix[4] resorcinarene.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 209

Made Darmaprathiwi

Profile of student’s science process skills on acid base titration practicum at class XI Mipa SMA Negeri 1 Singaraja.

15.45 – 16.00

IConMNS 210

Ni Luh Ika Sanjiwani

Analysis of student chemistry learning difficulties on buffer solution at SMA Negeri 2 Banjar Buleleng Bali.

16.00 – 16.15

IConMNS 132

Ni Luh Putu Liang Sri Wahyuni

Effect of addition of gamal leaf (gliricidia sepium) and white rice washing water to levels of NPK liquid organic fertilizer urine cow.

16.15 – 16.30

IConMNS 101

Putu Prami Pradnyani

Utilization of nata de pina as adsorben for adsorption of remazol black b textile dyes.

16.30 – 16.45

IConMNS 129

Endang Susilowati Preparation of Silver-Chitosan-Alginate Nanocomposite Film as Antibacteria Material

16.45 – 17.00

IConMNS 002

Putu Septian Eka Adistha Putra

Growth of glycine barium nitrate (GBN) crystals via slow evaporation method accompanied by the application of external electric fields.

17.00 – 17.15

IConMNS Ni Nyoman Yuliani

Contamination Test Of Salmonella Sp. In Household Industry White Tofu Naimata Kupang

17.15 – IConMNS Parallel Session

xxi

ROOM 5


Time ID Presenter Title 17.30

xxii

ROOM 6

Topic : Physics; Physics Education; Chemistry Education; Mathematics Education Moderator : Drs. Iwan Suswandi, M.Si.


IConMNS 211

I Wayan Santyasa Problem-based flipped classroom learning in achieving critical thinking, social attitudes, and spiritual attitudes of SMA’ students in learning physics.

08.15 – 08.30

IConMNS 011

Syarip Performance test analysis of neutron detectors for instrumentation & control system of CAMOLYP reactor.

08.30 – 08.45

IConMNS 006

Putu Artawan Analysis of 2x2 array curve microstripline antenna in l-band frequency for radar application.

08.45 – 09.00

IConMNS 153

Dewi Oktofa Rachmawati

Analysis of insulation ability on partition room compartment.

09.00 – 09.15

IConMNS 020

Putu Clarissa Comparation of the problem based learning and guided discovery learning model on problem solving skills and critical thinking at VIII grade of SMPN 1 Singaraja.

09.15 – 09.30

IConMNS 040

Ketut Suma The effect of activity and conceptual change the effect of activity and conceptual change text-based module on students’ conceptions of direct current ectricitytext-based module on students’ conceptions of direct current ectricity.

09.30 – 09.45

IConMNS 056

Dewa Ayu Putu Diah Oktavini Lestari

The effect of community and environment technological science learning model (STML) on the students' critical thinking skill and Learning achievement.

09.45 – 10.00

IConMNS 218

Amrina Painty Metalinda

The effect of scientific creative reasoning worksheet (SCSRW) on project based learning and prior knowledge towards scientific reasoning skills of high school students.

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 089

Rai Sujanem The effectiveness of problem-based interactive physics e-module to improve critical thinking skill in senior high school students.

10.45 – 11.00

IConMNS 044

Luh Putu Renis Ukirsari

The implementation of flipped learning model in class.

11.00 – 11.15

IConMNS 223

Hannah Yessi Precilia

Development of stem-based phet simulation students woorksheet to improve creative thinking skills of class XI in high school.

11.15 – 11.30

IConMNS 174

Ni Putu Dewi Masyuni

Website-based multimedia development as learning media in wave and sound vibration material to increase motivation and learning

xxiii

ROOM 6


Time ID Presenter Title achievement of class VIII students of SMP Negeri 7 Denpasar.

11.30 – 11.45

IConMNS 008

Mahrus Salam Criticality analysis of Kartini Reactor by inserting of thorium fuel elements (ThO2).

11.45 – 12.00

IConMNS 026

Putu Winda Marhayani Wijaya

The Developing Mathematics-Teaching Learning Devices Based on CORE to increase students’ ability to communicate mathematics of X Grade at SMA Negeri 7 Denpasar.

12.00 – 13.00

Lunch

13.00 – 13.15

IConMNS 065

Ni Made Widia Pradnyawati

Development of contextual fable module using characters with problem-based learning to improve the understanding of concept and student learning mathematics motivation.

13.15 – 13.30

IConMNS 194

Silvi Anjasmari Effectiveness of collaborative learning on learning motivation and social interactions.

13.30 – 13.45

IConMNS 068

Kadek Widiastari Development of multiple representation chemistry learning book to improve students’ learning outcomes.

13.45 – 14.00

IConMNS 066

Luh Ade Widiandari

Development of chemistry learning book based on case study to improve students’ learning outcome.

14.00 – 14.15

IConMNS 021

I Made Ari Purwadi Etnomathematics exploration, a study from Momongan (DICE) games.

14.15 – 14.30

IConMNS 047

I Gusti Ayu Puskita Dewi

The influence of group investigation is contained jengah with geogebra’s toward understanding concepts and self-efficacy.

14.30 – 14.45

IConMNS 067

I Dewa Ayu Sri Wulan Angga Dewi

Development of green chemistry learning book to improve students’ learning outcome.

14.45 – 15.00

IConMNS 048

Ni Wayan Adikana Wiandari Yadnya

Development of mathematics learning device based on cooperative model type of think talk write that supported by edmodo for developing the mathematics problem solving skills.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 192

Nurul Hidayat Crystalline Phase Stability of Alumina Reinforced Natural Silica Sand Composites under Heat Cycling Treatment and Its Potential for Fuel-Cell Seal Materials

15.45 – 16.00

IConMNS 051

I Gusti Agung Jatiariska

The influence of knisley mathematical learning model with geogebra towards mathematical connection and mathematical disposition.

16.00 – IConMNS I Gusti Ayu Chintya Development of physics learning device based

xxiv

ROOM 6


Time ID Presenter Title 16.15 063 Kusuma Dewi science technology society (STS) learning

model to improve scientific attitude and students’ understanding concept of X Grade High School.

16.15 – 16.30

IConMNS 108

Teowanda Putri Aditya

Development of problem-based physics learning module to improve students critical thinking ability.

16.30 – 16.45

IConMNS 107

I Made Tri Pramana Putra

The implementation of 7E learning cycle model in improving the social attitude and physics learning achievement of the XI MIPA 3 class students of in the academic year of 2018/2019.

16.45 – 17.00

IConMNS 215

Antonio Bili Analysis of geometric misconceptions of grade 7th students in the concepts of triangles and quadrilateral.

17.00 – 17.15


17.15 – 17.30


xxv

ROOM 7

Topic : Biology Education, Life Science, Natural Science Education, Mathematics Education Moderator : Luh Mitha Priyanka, S.Pd., M.Pd.


IConMNS 200

Vita Ria Mustikasari

Analysis scientific literacy students on substance pressure.

08.15 – 08.30

IConMNS 205

Josephine E. Siregar

Screening of Indonesian biodiversity as an antimalarial drug.

08.30 – 08.45

IConMNS 013

Ni Luh Putu Manik Widiyanti

Levels of serum glutamate oxaloacetate transaminase (SGOT) white rate (rattus norvegicus) wistar strain after administration katsuwonus pelamis l. which has been soaked using the leaf extract of moringa oleifera L.

08.45 – 09.00

IConMNS 213

Putu Budi Adnyana

Designing biology flipped classroom to foster active learning.

09.00 – 09.15

IConMNS 202

Desak Made Citrawathi

The effectiveness of the think pair share learning model based on questions to improve student participation and student learning outcomes about histology structure of digestive system.

09.15 – 09.30

IConMNS 103

Ni Made Pujani Implementation of the inquiry learning model to improve students' learning achievement at SMP Lab Undiksha.

09.30 – 09.45

IConMNS 104

I Ketut Sudiana Integrative health thematic strategy increases learning outcomes and students’ clean and healthy living behaviors.

09.45 – 10.00

IConMNS 203

Eva Susanty Simaremare

Antibacterial and toxicity activities itchy leaves [Laportea decumana (Roxb.) Wedd] extract.

10.00 – 10.30

Coffee Break

10.30 – 10.45

IConMNS 204

I Wayan Sukra Warpala

Development of local wisdom-based learning material for the science instruction in junior high school.

10.45 – 11.00

IConMNS 076

Ni Luh Gede Sri Pratiwi

The effect of problem based learning model toward formal reasoning ability and science process skills of junior high school.

11.00 – 11.15

IConMNS 158

Ketut Srie Marhaeni Julyasih

Carotenoids caracterization of caulerpa spp. and gracilaria spp seaweeds using thin layer chromatography and potential effect as antioxidant.

11.15 – 11.30

IConMNS 206

Ita Margaretha Nainggolan

Analysis of Beta Globin Gene Cluster Haplotypes in Beta Thalassemia Mutant Alleles in Indonesia.

11.30 – 11.45

IConMNS 219

Nyoman Wijana The utilization of useful plant species based on socio-cultural of tenganan pegringsingan bali aga village, district of Karangasem, Bali.

xxvi

ROOM 7



IConMNS 220

AA Sudiatmika The development of blended learning model for graduate student at science education program.

12.00 – 13.00

Lunch

13.00 – 13.15

IConMNS 130

Sumiyati Saadah Enhancing students critical thinking skill through TPACK framework.

13.15 – 13.30

IConMNS 088

Wirahadi Kusuma The effect of free inquiry learning model on the students’ science learning outcomes of junior high school students reviewed from critical thinking skill.

13.30 – 13.45

IConMNS 075

Made Shita Prajnitya

The development of student worksheet on science subject SMK based on internet learning resources to improve learning outcomes.

13.45 – 14.00

IConMNS 054

Kadek Yunanda Luxiana Parwata

The effectiveness of learning tools in science learning.

14.00 – 14.15

IConMNS 058

I Gusti Agung Ayu Russmalla Dewi

Analysis of science learning in implementation of full day school at SMP Negeri 2 Kuta.

14.15 – 14.30

IConMNS 045

I Gede Sandi Wiarsana

The effect of self-efficacy, achievement motivation, and study habits to science literacy at junior high school students.

14.30 – 14.45

IConMNS 134

Ida Ayu Putu Suryanti

Macronutrients level and number of bacteria in liquid organic fertilizer combination from banana stems and coconut fibers with ma-11 as bioactivator.

14.45 – 15.00

IConMNS 081

Komang Wisya Suwadarma

The validity and practically test of chemistry learning devices.

15.00 – 15.30

Coffee Break

15.30 – 15.45

IConMNS 224

I Gusti Ayu Citra Dewi

The Think Talk Write models in mathematics learning.

15.45 – 16.00

IConMNS 197

Erni Yulianti Improving Students’s Abilities in Scientific Reasoning and Scientific Literacy through Guided Inquiry.

16.00 – 16.15

IConMNS 168

Ni Kadek Findayani Effectiveness of mathematics teaching using geogebra: content analysis.

16.15 – 16.30

IConMNS 060

Risma Sagitarini Ethnomathematics of Undagi Bali in Blahbatuh village and the effort to get its knowlegde.

16.30 – 16.45

IConMNS 073

I Wayan Winarsa Supervision of principal in science Learning at SMPN Satap (Satu Atap) 1 Tembuku.

xxvii

ROOM 7



IConMNS 155

Ni Putu Sri Ratna Dewi

The validity of Tri Hita Karana (THK) oriented blended learning tool to improve students' critical thinking ability.

17.00 – 17.15


17.15 – 17.30


xxviii

TABLE OF CONTENT

COMMITTEE ............................................................................................... iii

WELCOME ADDRESS: CHAIR OF THE COMMITTEE ............................... v

RUNDOWN OF THE 2ND IConMNS 2019 ................................................... vii

TABLE OF CONTENT ............................................................................ xxviii

KEYNOTE SPEAKERS’ ABSTRACT ........................................................... 1

The role of bioactive natural products in structuring marine ecosystems ... 2

E Mollo

NO production in plant defense responses against pathogen attack ......... 4

K Kawakita

Fostering socio-scientific reasoning and decision making competencies –

A task of science education for problem solving regarding challenges of

the 21st century ......................................................................................... 5

S Bögeholz

Reflection on the implementation of video-assisted flipped learning to

improve students' mathematical proficiency and character at junior high

school in Bali ............................................................................................. 7

I G P Sudiarta

INVITED SPEAKERS’ ABSTRACT ............................................................. 8

Neuroendocrine control of reproductive functions in domestic ruminants .. 9

S OHKURA

Depletion of dark matter within globular clusters ..................................... 11

E Ardi

Feed development for sustainable mariculture in indonesia: special case

of grouper ................................................................................................ 12

N A Giri

ABSTRACT COLLECTION ....................................................................... 13

Abstract Topic : Biology Education .............................................................. 14

Analysis of conceptual change facility through certainty of response index

on theory of environmental change with POEW method .......................... 14

xxix

M Maspupah, T Kurniati, and R Nurfitriani

Enhancing students critical thinking skills through TPACK framework ..... 15

S Saadah, I Yusup, and N Aisyah

The validity of Tri Hita Karana (THK) oriented blended learning tool to

improve students’ critical thinking ability .................................................. 16

N P S R Dewi and D M Citrawathi

Carotenoids characterization of Caulerpa spp. and Gracilaria spp.

seaweeds using thin layer chromatography and potential effect as

antioxidant ............................................................................................... 17

K S M Julyasih1 and I W P S Yasa2

The effectiveness of the think pair share learning model based on

questions to improve student participation and student learning outcome

about histology structure of digestive system .......................................... 18

D M Citrawathi, N P M Widiyanti, and P B Adnyana

Designing biology flipped classroom to foster active learning .................. 19

P B Adnyana

Abstract Topic : Chemistry .......................................................................... 20

Growth of Glycine Barium Nitrate (GBN) crystals via slow evaporation

method accompanied by the application of external electric fields ........... 20

P S E A Putra

Heavy metal cations adsorption by cinnamoyl C-

methylcalix[4]resorcinarene ..................................................................... 21

I G M N Budiana

Antibacterial evaluation of 2,4-dihidroxy benzoic acid on Escherichia coli

and Vibrio alginolyticus ............................................................................ 22

I G M N Budiana

Utilization of nata de pina as adsorbent for adsorption of remazol black B

textile dyes .............................................................................................. 23

P P Pradnyani and I N Sukarta

Alkaline activation of marble-like carbon structure and its application for

inflammatory adsorption .......................................................................... 24

M Ulfa1, I M Gumilar1, and D Prasetyoko2

xxx

Microencapsulation of rukem fruits (Flacourtia Rukam Zoll.&Mor.) extract

using maltodextrin with spray drying method ........................................... 25

M Melanie, L N Lestario, and M Rahardjo

Chemical composition of the essential oils from red Citrus maxima cv. Bali

Isolated by steam distillation and solvent extraction ................................ 26

I W Muderawan

Preparation of silver-chitosan-alginate nanocomposite film as antibacteria

material ................................................................................................... 27

E Susilowati, M Maryani, A Ashadi, M Masykuri, and B Hastuti

Effect of addition of gamal leaf (Gliricidia sepium) and white rice washing

water to levels of NPK liquid organic fertilizer urine cow .......................... 28

N L P L S Wahyuni and M V Oviantari

Utilization of banana peel as source of pectin for edible coating .............. 29

L Mahardiani, R Larasati, and E Susilowati

Levels of anthocyanin and antioxidant activity of grape skin (Vitis vinifera

L) local of waste making process of red wine .......................................... 30

S Maryam

TiO2 purification from ilmenite the tin industry by product for pigment ...... 31

S A Aviandharie, N N Aidha, B N Jati, and A A Cahyaningtyas

The process of making Beta-Carotene emulsion as an antioxidant from

red virgin palm oil (RVPO) ....................................................................... 32

S Agustina, E Oktarina, and N N Aidha

Adsorption of methylene blue dyes using pectin membrane .................... 33

B Hastuti, S N Afifah, B Mulyani, and E Susilowati

Antibacterial and toxicity activities itchy leaves [Laportea decumana

(Roxb.) Wedd] extract ............................................................................. 34

E S Simaremare, E Gunawan, Y R Yabansabra, and J D Kalor

A novel hydrogen peroxide sensor based on bacteria peroxidase

thermostable immobilized on egg shell membrane modified do meter

electrode ................................................................................................. 35

I N Tika

xxxi

Contamination Test Of Salmonella SP. In Household Industry White Tofu

Naimata Kupang ..................................................................................... 36

Yuliani Ni Nyoman, Blegur Fatmawati1),Sutaryana Juliady Dharma1),

Budiana I Gusti Made Ngurah

Abstract Topic : Chemistry Education ......................................................... 37

Profiles of environmental literacy of senior high school students based on

gender ..................................................................................................... 37

I W Redhana and I N Suardana

Using of electrolysis learning media for developing high order thinking ... 38

C Z Subarkah, A Trisnawati, C D D Sundari, and A Malik

The implementation of flipped learning model in class ............................. 39

L P R Ukirsari, I W Subagia, and N P Ristiati

Development of chemistry learning book based on case study to improve

students’ learning outcome ...................................................................... 40

L A Widiandari, I W Redhana, and A A I A R Sudiatmika

Development of green chemistry learning book to improve students’

learning outcome ..................................................................................... 41

I D A S W A Dewi, I W Redhana, and P B Adnyana

Development of multiple representation chemistry learning book to

improve students’ learning outcomes ...................................................... 42

K Widiastari, I W Redhana, and N K Rapi

Pre-experiment assignment on drafting of guided investigation plan in

optimizing classroom inquiry learning ...................................................... 43

I B N Sudria, I W Redhana, and I W Suja

Mental model of prospective teachers on structure and properties

correlation of organic compounds ............................................................ 44

I W Suja, I W Redhana, and I B N Sudria

Students’ mental models in acid-base topic based on gender ................. 45

V D Putriani, I W Redhana, and S Maryam

Profile analysis of mental models of class 10th-grade students on

reduction and oxidation topic ................................................................... 46

P Negara, I W Redhana, and N Tika

xxxii

Analysis of students’ learning interest toward chemistry .......................... 47

L G Suryani, I N Suardana, and I W Redhana

Roles model of teachers in facilitating students learning viewed from

constructivist theories of learning ............................................................ 48

W Subagia

Learning media based on three level representation and inquiry for

electrolysis cell materials ......................................................................... 49

I Farida, M Dian, and F S Irwansyah

Practicality test of a students worksheet (LKS) based on a scientific

approach assisted by a simple chemistry practicum in the basics of acid

base titration............................................................................................ 50

P Lusiana, L Wiratma, and S Maryam

Profile of student’s science process skills on acid base titration practicum

at class XI MIPA SMA Negeri 1 Singaraja ............................................... 51

M D Adiningsih, I W Karyasa, and I W Muderawan

Analysis of student chemistry learning difficulties on buffer solution at SMA

Negeri 2 Banjar Buleleng Bali .................................................................. 52

N L I Sanjiwani, I W Muderawan, and I K Sudiana

Abstract Topic : Computational Science ....................................................... 53

Rplugin.actuaria: a package graphical user interface open source for

actuarial analysis using R software ......................................................... 53

N Satyahadewi and H Perdana

Abstract Topic : Computer Science .............................................................. 54

Detection of coffee bean damage in the roasting process based on shape

features analysis ..................................................................................... 54

I G A Gunadi1, I P M K Artha2, I G P Christyaditama2, G A S

Wicaksana2, and I M Martina2

Expert system to diagnose diseases of mental health with forward

chaining and certainty factor .................................................................... 55

N K Ariasih and I G A A D Indradewi

Decision support system for selection of outstanding lecturers at Dhyana

Pura University using a combination of analytical hierarchy process

methods and simple additive weighting ................................................... 56

xxxiii

P W Rahayu, I G A Gunadi, and I M Candiasa

A novelty public key cryptosystem based on circulant matrix ................... 57

M Maxrizal1, I G N Y Hartawan2, and P Janar3

Let’s help with math: a serious game for the 3rd grade elementary school

students in plane geometry ..................................................................... 58

K A T Raharja and I N Sukajaya

Captain math: an educational game for the 5th grade of elementary school

students in weight-unit conversion ........................................................... 59

D Mujahidain and I N Sukajaya

Story of math: a serious game based-learning for improvement of students

achievement in time unit conversion ........................................................ 60

P R Sahriana and I N Sukajaya

Biodiv checker: mangrove ecological using UAV and artificial intelligence

................................................................................................................ 61

M A S Adhiwibawa1, A Struck2, K Prilianti1, and T Brotosudarmo1

Use of Meyer wavelet in analyzing 12 lead electrocardiogram images .... 62

D Darwan

Abstract Topic : Environmental Science ....................................................... 63

Reef fishes responses to antifeedant assay of Phyllidiella nigra raw

extracts at Pramuka Island Waters, Kepulauan Seribu, DKI Jakarta ....... 63

A Setiawan

Exploration of antibiotic producing bacteria in soil in West Bali National

Park ........................................................................................................ 64

N P Ristiati, N P S R Dewi, S Mulyadiharja, and I R D Dagsy

Chromophoric dissolved organic matter (CDOM) in spring water: the effect

of precipitation ......................................................................................... 65

N K D D Lestari, L C Krismiari, and I G N A Suryaputra

Water quality management for surface water resources: system dynamics

(SD) approach ......................................................................................... 66

H Pradana, E Novita, A Puspitasari, and B Purnomo

The study on sediments organic enrichments at marine culture site of

Pegametan Bay, Bali Province ................................................................ 67

A Nasukha1, R Septory1, G S Wibawa1 , K Sugama2, and K H Runthe3

xxxiv

Implementation of Tri Hita Karana with socio-cultural ergonomic oriented

on the Kecak Dance performance to improve community health and

supporting cultural tourism in Peliatan Ubud Gianyar .............................. 68

I M Sutajaya and I W S Warpala

Abstract Topic : Fisheries Science ................................................................ 69

Effect of geomembrane and prism greenhouse methods in salt crystal

formation ................................................................................................. 69

M N T U Sakti1, I P W Widagda1, K N A Wijaya1, and G I Setiabudi2

The effect of providing different types of liquid organic fertilizer on

silkworm (Tubifex sp) growth ................................................................... 70

N Martini and G Yudasmara

Evidence of loss genetic variation in abalone, Haliotis squamata hatchery

................................................................................................................ 71

G N Permana1, I Rusdi1, F H Khotimah1, B Susanto1, and K Sugama2

Breaking strength and elongation of pineapple leaf ropes and chitosan

combination for fishing gear material ....................................................... 72

M Mainnah1, D Diniah2, B H Iskandar2 , and M M Jaya1

The effect of feed supplement on growth, survival rate and immunity

response of Pacific white shrimp Litopenaeus vannamei ......................... 73

H Haryanti, I G N Permana, F Fahrudin, S B Moria, and A Muzaki

Study of the best dose of organic matter from tiger shrimp pond (Penaeus

monodon) to the quantity and quality of Tetraselmis sp. based on

fluorescent protein expression ................................................................. 74

A C Nisa1, U Yanuhar2, M Maftuch2, and D A S Utami1

The using of salt and sodium tripoliphosphate (STPP) for the quality of fish

nugget from cattle fish (Hyposarcus pardalis) .......................................... 75

A Mulato1, Rahmatang2, and S P S D Utari2

Impact of formalin treatment in sea bass (Lates calcarifer) infected with

iridovirus .................................................................................................. 76

K Mahardika

Community of estuaries fish, Cianjur, West Java based on temporal of

lunar cycles and spatial differences ......................................................... 77

E Paujiah and A Mas’Ud

xxxv

Oxygen concentration dynamic in high density culture of abalone Haliotis

squamata ................................................................................................ 78

R Septory, Y Asih, and I Rusdi

Changes in fish species composition in Pantai Penimbangan Buleleng

marine ecosystems ................................................................................. 79

G I Setiabudi1, G Wiadnyana2, I P M Mariasa3, and K T Wirasastra4

Abstract Topic : Life Science ........................................................................ 80

Levels of serum glutamate oxaloacetate transaminase (SGOT) white rate

(Rattus norvegicus) wistar strain after administration Katsuwonus pelamis

L. which has been soaked using the leaf extract of Moringa oleifera L. ... 80

N L P M Widiyanti, N P Ristiati, and D W Wahyuni

Macronutrients level and number of bacteria in liquid organic fertilizer

combination from banana stems and coconut fibers with MA-11 as

bioactivator .............................................................................................. 81

I A P Suryanti and I M P A Santiasa

Screening of Indonesian biodiversity as an antimalarial drug .................. 82

J E Siregar, N E Pravitasari, and A F M Rizki

Analysis of Beta Globin Gene Cluster Haplotypes in Beta Thalassemia

Mutant Alleles in Indonesia ...................................................................... 84

I M Nainggolan1, 2, A R Harahap1, and I Setianingsih1

The utilization of useful plant species based on socio-cultural of Tenganan

Pegringsingan Bali Aga village, district of Karangasem, Bali ................... 85

N Wijana and I G A N Setiawan

Abstract Topic : Marine Science .................................................................. 86

Changes in Fishermen’s Activities after the Construction of Afsluitdijk

(Case Study: Fishermen in Urk, Flevoland Province, The Netherlands) .. 86

S Chairunnisa, D Susiloningtyas, T Handayani, and T Siswantining

Impact of geomembrane application on increasing the capacity of salt

production by local communities: case study in Buleleng Regency ......... 87

M N T U Sakti1, I P W Widagda1, G I Setiabudi2, and K N A Wijaya1

Existing conditions of coral reefs in Labuhan Pandan Waters Eastern

Lombok, post Lombok 7.0 magnitude earthquake ................................... 88

N M Satyawan, N T Atriningrum

xxxvi

Electrical stimulation in the ornamental coral cultivation .......................... 89

G A Yudasmara, I N Selamat, and I N Sukarta

Pigment-producing bacteria isolated from kondang merak beach, Malang,

East Java ................................................................................................ 90

E Setiyono and T H P Brotosudarmo

Conflicting or synergistic interaction between tourism and marine

protected areas in Lembongan Island ..................................................... 91

D Prasetia1, S Supriharyono2, L Sy’Rani2, and S Anggoro2

The study about development model of tourism awareness coastal village

as strategy in marine tourism build in Buleleng Regency Province of Bali

................................................................................................................ 92

I B Jelantik

The health status of mangrove ecosystem and fisheries potential of

Demta-Jayapura Bay Papua ................................................................... 94

J D Kalor, E Indrayani, and M N R Akobiarek

The survival rate of abalone Haliotis squamata cultured on sea ranching

method in two different types of waters ................................................... 95

I Rusdi, Y N Asih, S Sudewi, I G N Permana, and R Septory

Differences of characteristics and growth rate of seagrape seeds

(Caulerpa lentillifera) from Madura, Situbondo and Bali ........................... 96

K L Antara, G I Setiabudi, and I N D Prasetya

Abstract Topic : Mathematics ...................................................................... 97

Contraction coefficient of flow through a sluice gate ................................ 97

L Wiryanto

The application of fuzzy system to predict math anxiety using math self-

efficacy and attitudes data ....................................................................... 98

H P Susanto, T Sutarti, A S Hafidah

Etnomathematics exploration, a study from momongan (dice) games ..... 99

I M A Purwadi and I G P Suharta

On the Ramsey number for cycle with respect to multiple copies of wheel

on five vertices ...................................................................................... 100

I W Sudarsana

xxxvii

Quantitative approach to study the role of families and school

environments on juvenile delinquency in Denpasar City ........................ 101

I P E N Kencana, T Tastrawati, and K Jayanegara

Forecasting farmer exchange rate in bali province using seasonal

autoregressive integrated moving average (SARIMA) method .............. 102

N M D Pratiwi, S M U Agustini, W W Sari, and E N Kencana

The prediction of inflation rate in Denpasar City using artificial neural

network by considering foodstuffs prices ............................................... 103

I K R Wiranata, N K E Sapitri, and E N Kencana

Does the gold jewellery price affect the fashion industry? An ANN

approach ............................................................................................... 104

P A Gunawan, N Indrianto, and E N Kencana

Structural model of internal factors that affecting tourism business

performance in Jembrana Regency of Bali ............................................ 105

G K Gandhiadi

A lower bound for irregularity strength of the complete graph of power two

vertices .................................................................................................. 107

R Savitri and I N Suparta

Fuzzy logic in the navigation of line follower robot ................................. 108

W Choirijah and S Sugiyarto

Dynamical behavior of leukemic cells with chemotherapy in acute myeloid

leukemia ................................................................................................ 109

Y Adi and J Purwadi

Arimax model in forecasting stock price ................................................ 110

I G Y N Hartawan, I M Suarsana, G Suweken, S Sariyasa, P K Dewi,

and N Budayana

Parameters estimation of Rayleigh distribution in survival analysis on type

II censored data using the Bayesian method ......................................... 111

E Elviana and J Purwadi

Determining attribute weights in fuzzy multi-attribute decision making

(FMADM) using technique for order preference to ideal solution (TOPSIS)

.............................................................................................................. 112

N Irsalinda and N Wahyuni

xxxviii

Propositional proofing techniques application in algebraic structure

research ................................................................................................ 113

M A Misri

Graceful labeling for variation of chain graph ........... 114

I N Budayana, I N Suparta, I G N Y Hartawan, and P L Wahyuni

Expected-based VaR forecasts and its assessment of accuracy ........... 115

J Seleky and K Syuhada

Nonparametric regression mixed model Spline Truncated and Kernel on

the percentage of malnourished children under five in NTB province .... 116

M S Sauri, M Hadijati, and N Fitriyani

Spline and Kernel nonparametric regression models on children's growth

in West Nusa Tenggara ......................................................................... 117

N Fitriyani, M Hadijati, D Komalasari, and A Kurnia

Vertex irregular total k-labeling on generalized Petersen graph ............. 118

A I Pangestika and D E Wijayanti

Particle swarm optimization on mixed Spline Truncated and Kernel

nonparametric model of the percentage of malnutrition in West Nusa

Tenggara ............................................................................................... 119

M Hadijati, I Irwansyah, N Fitriyani, and M S Sauri

Super vertex anti-magic total labelling of TL(n) ...................................... 120

I N Suparta, I M Suarsana, I N Budayana, and R Y Wulandari

Abstract Topic : Mathematics Education .................................................... 123

Improvement a positive attitude toward abstract algebra through APOS

theory approach .................................................................................... 123

I M Arnawa1, Y Yanita1, B Ginting1, and S Nita2

The influence of inquiry learning method with open ended worksheet

towards quantitative reasoning and self-esteem .................................... 124

N W Arisujati, S Sariyasa, and G Suweken

The developing mathematics-teaching learning devices based on CORE

to increase students’ ability to communicate mathematics of X grade at

SMA Negeri 7 Denpasar ....................................................................... 125

P W M Wijaya1, I W P Astawa2, and I G P Suharta2

xxxix

Development of BLCS learning devices based on traditional and computer

explorative media to improve mathematical problem-solving skills ........ 126

N W I S Dewi, I M Ardana, and G Suweken

Developing mathematical comic based characters’ education to improve

problem solving skills in peer-tutoring .................................................... 127

P A C Dewi1, I G P Sudiarta2, and G Suweken2

The difference of influence of ARIAS learning model aided with problem

card and those aided with students worksheet toward students’

understanding of concept and mathematics interest .............................. 128

N K A Saputri, G Suweken, and S Sariyasa

The influence of group investigation is contained jengah with geogebra’s

toward understanding concepts and self-efficacy .................................. 129

I G A P Dewi, I M Ardana, and G Suweken

Development of mathematics learning device based on cooperative model

type of think talk write that supported by edmodo for developing the

mathematics problem solving skills ....................................................... 130

N W A W Yadnya, I M Ardana, and I G P Suharta

The influence of knisley mathematical learning model with geogebra

towards mathematical connection and mathematical disposition ........... 131

I G A Jatiariska, S Sariyasa, and I W P Astawa

The effect of guided discovery learning model assisted by open-ended

student worksheets towards mathematical problem solving ability

reviewed of students’ emotional intelligence .......................................... 132

K M Pratiwi, I G P Sudiarta, and G Suweken

Collaborative learning devices contain of local culture (Tri-Hita-Karana) to

improve students’ mathematics conceptual understanding and students’

attitude of respect .................................................................................. 133

N L M M Widayani, I G P Suharta, and I M Ardana

Ethnomathematics of undagi Bali in Blahbatuh Village and the effort to get

its knowledge ........................................................................................ 134

R Sagitarini, I W P Astawa, and I G P Suharta

Exploring the mental structure: classification of mental models of student

mathematical conjecture on open ended problems................................ 135

I W P Astawa

xl

Development of contextual fable module using characters with problem-

based learning to improve the understanding of concept and student

learning mathematics motivation ........................................................... 136

N M W Pradnyawati, I G P Suharta, and I N Suparta

Developing realistic mathematics education (RME) oriented video to

advance vocational school students higher order thinking skills (HOTS)

.............................................................................................................. 137

I W Sumandya1 and I G A Handayani2

What, why, and how the research design in mathematics education ..... 138

I G P Suharta

The effect of open-ended learning models on understanding concept by

control of numeric trainers of students ................................................... 139

I K Sukendra

Developing GeoGebra mathlet on geometry transformation oriented

IKRAR strategy to improve students’ mathematical problem solving ability

.............................................................................................................. 140

I D G P Ardinata

The effect of blended learning model to conceptual understanding and

procedural fluency ................................................................................. 141

D G A P Nugraha

Evaluation of implementation of content standards and standard

processes on mathematical learning ..................................................... 142

I W Suantara, I G P Sudiarta, and I N Suparta

Learning trajectory of sequences and series using contextual approach

assisted by Socratic questioning (CA-SQ) to develop students critical

thinking skills ......................................................................................... 143

N M Darmini, I N Suparta, and I G P Sudiarta

Mathematical habits of mind (MHM) learning strategy on students’

mathematical problem solving ability of the 10th grades viewed from

formal reasoning ................................................................................... 144

N L G S Suardani, S Sariyasa, and I N Suparta

The influence of MEA’s assisted by PISA’s problem solving tasks towards

the mathematics literacy of the 8th grades of SMPN 4 Kuta Selatan ..... 145

N P S Noviyanti, G Suweken, and I G P Sudiarta

xli

The influence of edmodo assignment method towards students’ motivation

and achievement on learning mathematics ........................................... 146

G A Mahayukti, S Sariyasa, and N G A M D N Suci

The effect of digital literacy on the ability of teachers to develop of HOTS

assessment ........................................................................................... 147

I W Widana

The effect of authentic problem-oriented learning resources with maple on

financial mathematics and linear programing learning outcomes viewed

from initial ability .................................................................................... 148

I G N Pujawan, I P P Suryawan, and I M Suarsana

Classification of solving non-routine mathematical problems of 8th grade

students ................................................................................................ 149

A A A S Pramayudi, I G P Sudiarta, and I W P Astawa

The effect of online discussion in blended learning on the mathematical

concept comprehension and attitude on the 8th grade students of SMP

Negeri 1 Mengwi ................................................................................... 150

P W Prawestri, I G P Sudiarta, and I W P Astawa

Validity of introduction to basic mathematics teaching materials based on

conceptual understanding procedures models and character education 151

M Juniantari, G A Mahayukti, I N Gita, and I P P Suryawan

Developing interactive videos with sign language as a learning resources

on fraction topics for junior high school hearing-impaired students ........ 152

I M Suarsana

Why should you reverse the order when dividing a fraction? a study of pre-

service mathematics teachers’ pedagogical content knowledge in

fractional concept .................................................................................. 153

R A Apsari and S Sariyasa

Introducing and developing informal inferential reasoning based on APOS

theory for 8th grade students ................................................................. 154

U F Akbari, I G P Sudiarta, and I G P Suharta

Development content and online discussion strategy in blended learning to

improve student mathematical learning outcomes ................................. 155

L D P Patni, I G P Sudiarta, and I N Suparta

xlii

A content analysis of implementation of blended learning approach in

Indonesian 2013 curriculum .................................................................. 156

I D M K Yasa, I W P Astawa, and I G P Sudiarta

Effect of eliciting activities models in mathematics learning ................... 157

I G A S K Sari, I W P Astawa, and I G P Sudiarta

Effectiveness of flipped learning models in mathematics ....................... 158

P M Adi, S Sariyasa, and I M Ardana

Effectiveness of the use of geogebra in mathematics learning .............. 159

N P P D Palgunadi, I G P Sudiarta, and I M Ardana

Effectiveness of the use CAS technology (computer algebra system) in

mathematical learning ........................................................................... 160

N M S T Riani, G Suweken, and S Sariyasa

The effectiveness of STEM (science, technology, engineering, and

mathematics) in mathematics learning .................................................. 161

P N Listiari, I G P Suharta, and I N Suparta

Influence of anxiety in mathematics learning ......................................... 162

P L Lestari, I M Ardana, and I G P Suharta

Content analysis of grade IX curriculum mathematics student book K13

based on Bell’s criteria .......................................................................... 163

D A O Setiawati, G Suweken, and I N Suparta

Literature study on vertical equating test of Rasch model to measure the

development of student cognitive ability in mathematics lessons........... 164

N L P D Nariyanti, I G P Sudiarta, and G Suweken

Content analysis of mathematical basic competencies .......................... 165

P P Kurniawan, I G Suweken, and I G P Sudiarta

Effectiveness of the creative problem solving learning model in

mathematics learning ............................................................................ 166

R M V N Sari, I M Ardana, and G Suweken

The effect of inquiry learning models in mathematics learning: a content

analysis ................................................................................................. 167

P W Srinivasa, I N Suparta, and I M Ardana

Constructivism analysis in mathematics learning education .................. 169

xliii

K P Budarsini, I G P Suharta, and I W P Astawa

Content analysis about mathematics learning that helped with technology

.............................................................................................................. 170

P G W Adnyana, I G P Suharta, and I W P Astawa

Implication of the application of project based learning (PjBL) in

mathematics .......................................................................................... 171

N P Juniantari, I G P Sudiarta, and I G P Suharta

Application of blended learning in mathematics learning ....................... 172

N M A Wirdayanti, S Sariyasa, and I M Ardana

Effectiveness of treffinger learning model in mathematics learning ........ 173

N P P Wulandari, S Sariyasa, and I N Suparta

Effectiveness of collaborative learning on learning motivation and social

interactions ............................................................................................ 174

S Anjasmari, I G P Sudiarta, amd I W P Astawa

Types of student errors in solving mathematical problems .................... 175

N N Parwati, and I G P Suharta

Development of folklore-based cartoons as geometry learning media for

special education students .................................................................... 176

I M Candiasa and N M S Mertasari

Analysis of geometric misconceptions of grade 7th students in the

concepts of triangle and quadrilateral .................................................... 177

A Bili, G Suweken, and I N Suparta

The think talk write model in mathematics learning................................ 178

I G A C Dewi

Abstract Topic : Natural Science Education................................................ 179

The effectiveness of learning props in science learning ......................... 179

K Y L Parwata and A A I A R Sudiatmika

Analysis of science learning in implementation of full day school at SMP

Negeri 2 Kuta ........................................................................................ 180

I G A A R Dewi, I N Suardana, and I B P Mardana

Supervision of principal in science learning at SMPN Satap (Satu Atap) 1

Tembuku ............................................................................................... 181

xliv

I W Winarsa, I W Subagia, and N L P M Widiyanti

The development of student worksheet on science subject SMK based on

internet learning resources to improve learning outcomes ..................... 182

M S Prajnitya, I W Subagia, and D M Citrawathi

The effect of problem based learning model toward formal reasoning

ability and science process skills of junior high school ........................... 183

N L G S Pratiwi, W Suastra, and S Maryam

The validity and practically test of chemistry learning devices ............... 184

K W Suwadarma, A A I A R Sudiatmika, and I W Suja

The effect of free inquiry learning model on the students’ science learning

outcomes of junior high school students reviewed from critical thinking skill

.............................................................................................................. 185

W Kusuma, W Suastra, and K Sudiana

Implementation of the inquiry learning model to improve students’ learning

achievement at SMP LAB Undiksha ...................................................... 186

N M Pujani, M Resika, and P A M Giri

Integrative health thematic strategy increases learning outcomes and

students’ clean and healthy living .......................................................... 187

I K Sudiana, N Adiputra, and P B Adnyana

Improving student’s abilities in scientific reasoning and scientific literacy

through guided inquiry ........................................................................... 188

E Yulianti1, V R Mustikasari1, E Hamimi1 N F A Rahman2, and L F

Nurjanah1

Development of local wisdom-based learning material for the science

instruction in Junior High School ........................................................... 189

I W S Warpala

The development of blended learning model for graduate student at

science education program ................................................................... 190

A A I A R Sudiatmika, I W Subagia, and K Suma

Abstract Topic : Physics............................................................................. 191

Analysis of 2x2 array curve microstripline antenna in L-band frequency for

radar application .................................................................................... 191

P Artawan1 and Y H Pramono2

xlv

Criticality analysis of Kartini reactor by inserting of thorium fuel element

(ThO2) ................................................................................................... 192

M Salam and S Syarip

Performance test analysis of neutron detectors for instrumentation &

control system of CAMOLYP reactor ..................................................... 193

S Syarip1, P I Wahyono1, Mahrus S1, and T C Rahayu2

Analysis of insulation ability of partition room compartment ................... 194

D O Rachmawati, I G A Gunadi, and N K Rapi

Crystalline phase stability of alumina reinforced natural silica sand

composites under heat cycling treatment and its potential for fuel-cell seal

materials ............................................................................................... 195

N Hidayat1, M A Baqiya2, A Taufiq1, S Sunaryono1 , T Triwikantoro2 and

S Pratapa2

Abstract Topic : Physics Education ............................................................ 196

Effect of problem based learning model on problem solving ability and

critical thinking ability of class VIII students in science subjects at SMPN 1

Singaraja ............................................................................................... 196

P Clarissa, N Suardana, and N Wijana

The Effect of activity and conceptual change the effect of activity and

conceptual change text-based module on students’ conceptions of direct

current ectricity text-based module on students’ conceptions of direct

current ectricity ...................................................................................... 197

K Suma, N M Pujani, and N K Rapi

The effect of self-efficacy, achievement motivation, and study habits to

science literacy at junior high school students ....................................... 198

I G S Wiarsana, I W Sadia, and I B P Arnyana

The effect of community and environment technological science learning

model (STML) on the students’ critical thinking skill and learning

achievement .......................................................................................... 199

D A P D O Lestari, K Suma, and I W Suja

Development of physics learning device based Science Technology

Society (STS) learning model to improve scientific attitude and students’

understanding concept of X grade high school ...................................... 200

I G A C K Dewi, I W Sadia, and I B N Sudria

xlvi

The effectiveness of problem-based interactive physics e-modul to

improve critical thinking skills in senior high school students ................. 201

R Sujanem, I N P Suwindra, and I Suswandi

The implementation of 7E learning cycle model in improving the social

attitude and physics learning achievement of the XI MIPA 3 class students

in the academic year 2018/2019 ............................................................ 202

I M T P Putra, I W Suastra, and A A I A R Sudiatmika

Development of problem-based physics learning module to improve

students critical thinking ability .............................................................. 203

T P Aditya, R I L Dewi, N M D M Permana, K Suma, and I G A Gunadi

Website-Based multimedia development as learning media in wave and

sound vibration material to increase motivation and learning achievement

of class VIII students of SMP Negeri 7 Denpasar .................................. 204

N P D Masyuni, K Suma, and I D K Sastrawidana

Analysis scientific literacy students on substance pressure ................... 205

L F Nurjanah1, V R Mustikasari1 E Yulianti1, N Pratiwi1, I W

Sumberartha1, and F A Phang2

Problem-based flipped classroom learning in achieving critical thinking,

social attitudes, and spiritual attitudes of SMA’ students in learning physics

.............................................................................................................. 206

I W Santyasa, G S Santyadiputra, and M Juniantari

The effect of scientific creative reasoning worksheet (SCSRW) on project

based learning and prior knowledge towards scientific reasoning skills of

high school students .............................................................................. 207

A P Metalinda, I M Astra, and Y Supriyati

Development of STEM-based PhET simulation students woorksheet to

improve creative thinking skills of class xi in high school ....................... 207

I M Astra and H Y Pricilia

1

KEYNOTE SPEAKERS’

ABSTRACT

2

The role of bioactive natural products in structuring marine ecosystems

E Mollo

Institute of Biomolecular Chemistry, National Research Council of Italy, 80078

Pozzuoli, Italy

Abstract

Text Interactions between different species and between individuals of the same

species play critical roles in structuring and stabilizing ecological systems.

Accordingly, the study of chemically mediated biotic interactions, including

competition, predation, defense, and reproduction, can provide information that is

important for a better understanding of ecosystem functioning and biodiversity. In

spite of this, the ecological role of natural products at higher levels of biological

organization, as populations, communities and ecosystems, largely remains

unexplored. In aquatic systems, in particular, the signal molecules have been rarely

identified [1]. This lack of information is partly due to a misrepresentation of the

spatial distributions of the chemical cues in aquatic environments, which has led to

the widespread prejudice that aquatic organisms only encounter water-soluble

molecules [2,3]. Recent studies, however, have shown how interactions among

marine benthic invertebrates can be mediated by the same volatile compounds

representing a kind of complex chemical language for plants in terrestrial

environments [4,5]. This is the long-term result of selective pressures and co-

evolutionary processes affecting every level of biological organization, in both

terrestrial and aquatic systems. On the other hand, marine natural products also have

the potential of destabilizing community dynamics when released by invasive

species in the invaded areas, by exerting dramatic impacts on the native

communities within very rapid time spans. A growing body of literature has focused

on this issues by applying a “chemoecological approach” to marine biological

invasions [6–9, and references therein]. The obtained results will be discussed here

by giving special emphasis to molecular interactions that are likely to exert cascade

effects at all levels of biological organization, from molecules to ecosystems.

Finally, a strategy to control and manage biological invasions that is based on the

exploration of possible uses of valuable natural products from “invasive biomasses”

in different applicative domains, such as health, food, agriculture, environment and

fisheries, will be proposed. This strategy could contribute to reduce the ecological

impact of the invasions by making their control profitable, thus producing socio-

economic benefits [8].

[1] Zimmer RK, Zimmer CA. Dynamic Scaling in Chemical Ecology. J Chem Ecol

34:822–36, 2008.

3

[2] Mollo E, Fontana A, Roussis V, Polese G, Amodeo P, Ghiselin MT. Sensing

marine biomolecules: smell, taste, and the evolutionary transition from aquatic

to terrestrial life. Front Chem 2(October):92, 2014.

[3] Mollo E, Garson MJ, Polese G, Amodeo P, Ghiselin MT. Taste and smell in

aquatic and terrestrial environments. Nat Prod Rep 34:496–513, 2017.

[4] Giordano G, Carbone M, Ciavatta ML, Silvano E, Gavagnin M, Garson MJ,

Cheney KL, Mudianta IW, Russo GF, Villani G, Magliozzi L, Polese G, Zidorn

C, Cutignano A, Fontana A, Ghiselin MT, Mollo E. Volatile secondary

metabolites as aposematic olfactory signals and defensive weapons in

aquatic environments. Proc Natl Acad Sci USA 114:3451–6, 2017.

[5] Penuelas J, Llusia J, Estiarte M. Terpenoids: a plant language. Trends Ecol

Evol 10:289, 1995.

[6] Raniello R, Mollo E, Lorenti M, Gavagnin M, Buia MC. Phytotoxic activity of

caulerpenyne from the Mediterranean invasive variety of Caulerpa racemosa:

a potential allelochemical. Biol Invasions 9:361–8, 2007.

[7] Mollo E, Gavagnin M, Carbone M, Castelluccio F, Pozone F, Roussis V,

Templado J, Ghiselin MT, Cimino G. Factors promoting marine invasions: A

chemoecological approach. Proc Natl Acad Sci USA 105:4582–6, 2008.

[8] Mollo E, Cimino G, Ghiselin MT. Alien biomolecules: a new challenge for

natural product chemists. Biol Invasions 17:941–50, 2015.

[9] Vitale R, D’Aniello E, Gorbi S, Martella A, Silvestri C, Giuliani M, Fellous T,

Gentile A, Carbone M, Cutignano A, Grauso L, Magliozzi L, Polese G,

D'Aniello B, Defranoux F, Felline S, Terlizzi A, Calignano A, Regoli F, Di

Marzo V, Amodeo P, Mollo E. Fishing for Targets of Alien Metabolites: A

Novel Peroxisome Proliferator-Activated Receptor (PPAR) Agonist from a

Marine Pest. Mar Drugs 16:431, 2018.

4

NO production in plant defense responses against pathogen attack

K Kawakita

Plant Pathology Laboratory, Graduate School of Bioagricultural Sciences, Nagoya

University, Nagoya, 464-8601, Japan

[email protected]

Abstract

In plants, nitric oxide (NO) plays crucial roles in the regulation of various

physiological processes including stomatal closure, vegetative growth, floral

transition and defense responses. NO has been also shown to be an important

messenger in plant defense signaling against microbial pathogens. NO participates

in the induction of the hypersensitive response (HR), defense-related gene

expression and production of antimicrobial compounds (phytoalexins).

NO generating systems in plants are obscure. Nitrate reductase (NR), a key enzyme

of nitrogen assimilation, is another enzyme that is capable of producing NO in

plants. We showed that transcript accumulation of NR genes in potato tubers is

induced by pathogen signals such as cell wall elicitor from Phytophthora infestans,

arachidonic acid and salicylic acid. We cloned NR genes from Nicotiana

benthamiana and silenced them, resulting in significant decrease of NO production

induced by INF1, a major elicitin secreted by P. infestans. These results suggest that

NR is involved in NO production in plant defense. However, the possibility remains

that other NO-generating system(s) contribute to NO production. NOS-like

enzyme(s) have never been identified in plants, and only the gene for Arabidopsis

thaliana nitric oxide-associated 1 (AtNOA1) has been identified as a putative

regulator of NOS activity in plants. We cloned NbNOA1, a homolog of AtNOA1,

from N. benthamiana. Silencing NbNOA1 partially decreased INF1-induced NO

production and suppressed INF1-induced PR1a gene expression. These results

suggest that NbNOA1 is involved in INF1-mediated NO production and is required

for defense responses.

In addition, peroxynitrite (ONOO-) is a compound formed by reaction of O2- with

NO and is expected to function as a signal molecule. We detected ONOO-

generation in tobacco BY-2 cells treated with INF1 and tyrosine nitration as a direct

reaction of ONOO-, indicating the role of ONOO- in defense responses in plants.

Keywords : plant defense responses, nitrate reductase, nitric oxide

5

Fostering socio-scientific reasoning and decision making competencies – A task

of science education for problem solving regarding challenges of the 21st

century

S Bögeholz

Abstract

The loss of biodiversity and climate change, e.g., connected with land use change,

are urgent and challenging issues for society in the 21st century. Thus, the keynote

presents findings of an educational research program that addresses competencies to

cope with real-world challenges of Sustainable Development (SD) in science

education. The research program comprises modelling, measuring and fostering of

competencies for socio-scientific reasoning and decision making for Sustainable

Development (SSR-DM/SD). Thereby, a theoretically and empirically supported

model of competencies for SSR-DM/SD will be outlined. The model includes

competencies such as abilities to understand and reflect values and norms in SD

issues, to develop and reflect solutions for SD issues, to evaluate qualitatively and

quantitatively such solutions and to reflect them, and perspective taking in SD

issues. Modelling and measuring these competencies is exemplified especially via

biodiversity and land use change issues. In addition, intervention studies show

evidence that competencies for SSR-DM/SD can be fostered. In this regard, an

example of how to teach such competencies with respect to the palm oil production

in Indonesia is presented. Consequently, the research on competencies for SSR-

DM/SD can be transferred to SD issues relevant for Indonesia, e.g., the conversion

of rainforest into oil palm plantations. Teaching Indonesian land use change issues

provides an educational potential that is not addressed sufficiently yet. The

presentation concludes with an outlook on a submitted project on teacher education

that aims at making knowledge for socio-scientific reasoning and decision making in

land use change issues of Indonesia available for society. Regarding the Education

for Sustainable Development Goals, the research on competencies for SSR-DM/SD

is mainly oriented towards the SDGs 7 (renewable energy), 12 (responsible

consumption), 13 (climate action), 14 (life below water), and 15 (life on land) up to

now. It is further applicable to SDG 3 (good health), 6 (clean water and sanitation)

and 11 (sustainable cities and communities). The whole research program

contributes to SDG 4 (quality education).

7

Reflection on the implementation of video-assisted flipped learning to improve

students' mathematical proficiency and character at junior high school in Bali

I G P Sudiarta

Universitas Pendidikan Ganesha

[email protected]

Abstract

Flipped learning has developed rapidly in this decade. However, many studies show

different results. This article presents a-3 years' experience in implementing video-

assisted flipped learning at junior high schools in Bali. The video-assisted flipped

learning model has been successfully tested and developed. Some series of

experiment in several junior high schools in Bali showed positive results. This

learning model has a positive effect on student performance and student character.

In addition, it was also proven that (1) in the online phase of the flipped learning

students were actively involved in discussion forums and were able to construct

their own knowledge and experience, among others, by writing down their own

concepts, reasoning, and problem solving strategies thoroughly, (2) students also

became bolder to express their opinion in the discussion forum, but they also cared

and respected each other. The success of this online phase has an impact on (1)

increasing student readiness in face-to-face learning phase, (2) increasing student

performance in reasoning and problem solving activities. In addition to this success,

it should be emphasized that the implementation of this learning model requires the

following conditions: (1) teacher's readiness, commitment and ability to facilitate

students with various creative digital learning resources, such as interesting video

tutorials, and challenging authentic assignments, (2) teacher skills in moderating

discussion forums, (3) teacher competence in increasing students' curiosity, critical

thinking, collaboration and cooperation.

Keywords : flipped learning, online discussion, creative digital learning resources

mathematical proficiency, student character

8

INVITED SPEAKERS’

ABSTRACT

9

Neuroendocrine control of reproductive functions in domestic ruminants

S OHKURA

Laboratory of Animal Production Science, Graduate School of Bioagricultural

Sciences, Nagoya University, Nagoya, Japan.

[email protected]

Abstract

Livestock products, such as meat and milk, are essential food resources for human

beings. For the protection of the global environment, it is necessary to breed

livestock efficiently using limited material resources, human resources and land, etc.

If enough supply of livestock products can be achieved using minimum number of

animals maintained by efficient breeding, a sustainable animal husbandry comes

into effect. In recent years, the reproductive efficiency of livestock continues to

decline not only in Japan but also worldwide, and it has become an urgent issue to

be solved in this field. To improve the reproductive performance in livestock, it is

necessary to develop a better understanding of the physiological mechanism that

controls reproduction in domestic animals. Reproductive processes in female

mammals, such as follicular development in the ovary, ovulation of dominant

follicles, and sexual and maternal behaviors, are under the control of the brain. The

release of gonadotropin-releasing hormone (GnRH) from the hypothalamus is the

top of hierarchy regulating ovarian activity and estrus cycles. Two modes of GnRH

release are well recognized to regulate the estrous cycle. One is the tonic or pulse

mode of secretion, which is primarily responsible for the follicular development and

steroidogenesis. The other is the surge mode of secretion, which is solely

responsible for the induction of GnRH/luteinizing hormone (LH) surges, which

induce ovulation. The pattern of pulsatile GnRH release is a key determinant

regulating the gonadal activity. The pulsatile secretion of GnRH is associated with

synchronized electrical activity in the mediobasal hypothalamus (multiple unit

activity; MUA), which is thought to reflect the rhythmic oscillations in the activity

of the neuronal network, the GnRH pulse generator, which drives pulsatile GnRH

secretion. However, the cellular source of this ultradian rhythm in GnRH release has

not been fully elucidated. Recently, KNDy neurons in the hypothalamic arcuate

nucleus (ARC), in which kisspeptin (K), neurokinin B (N) and dynorphin A (Dy) are

co-expressed, have attracted interest as the regulator of pulsatile GnRH release

(Brain Res. 1364:103–115, 2010). Our previous finding suggests that, in goats, the

KNDy neurons in the ARC may be the intrinsic source of the GnRH pulse generator

using MUA recording technique (J. Neuroendocrinol. 21:813-821, 2009). In a series

of studies in goats, we proposed a model for the generation of rhythmic oscillation

of the activity in KNDy neurons and the pulsatile release of GnRH.

11

Depletion of dark matter within globular clusters

E Ardi

Kyoto International University, Japan

[email protected]

Abstract

Gravitationally bound group of stars which are identified as globular clusters are

known to have a small amount of dark matter. Assuming that globular clusters are

formed within dark matter halos, they must have lost significant amount of dark

matter. Observations of globular clusters reported flattening velocity dispersion on

the outskirt clusters. This could be a sign of existence of dark matter. Theoretically,

dynamical processes such as mass segregation and tidal stripping could be

responsible for the depletion of dark matter from the cluster center. Numerical

simulations are conducted to follow the evolution of the models of globular clusters

composed out of stars and dark matter particles. The results show that the dark

matter is depleted from the center of globular clusters due to dynamical friction and

mass segregation of stars. Tidal stripping depletes the dark matter from globular

clusters less than 20 % of the initial value within ~ 2 friction times or more than 80

% of dark matter’s initial amount still remain in the outer part of the clusters. This

might explain the existence of significant amount of dark matter in the outer part of

observed clusters.

Keywords : stellar dynamics, numerical simulations, globular clusters

12

Feed development for sustainable mariculture in indonesia: special case of

grouper

N A Giri

Institute for Mariculture Research and Fisheries Extention,

Gondol, Bali, Indonesia

[email protected]

Abstract

Aquaculture currently supplies around half of the fish consumed globally and is

projected to grow from 66.6 million tons in 2012 to 93.2 million tons by 2030. To

achieve that target, significant improvements in aquaculture technologies should be

established, including fish breeding and genetics, nutrition and feeds, diseases and

fish health, and farming systems. Sustainable aquaculture mean not only in term of

production but also environment and social aspects. Technology for breeding and

mass seed production for some species of marine fish have been developed, such as

milkfish (Chanos chanos), sea bass (Lates calcarifer), groupers, silver pompano

(Trachinotus blochii), shrimp, etc. Through the application of hatchery technology,

total marine fish seed production in 2011 had reached 28.83 billion, of which 187.34

million is grouper. Grouper is a carnivore fish. Initially, culture practice for groupers

involves a 100% reliance on fresh fish to feed them. This is neither environmentally

nor economical sustainable, and priority must be given to application of

compounded feeds to replace or at least supplement the fresh fish diet. Formulations

for effective manufactured feeds should be developed through a serrie of research

activity, including essential nutrient for grouper, nutrient requirement, feed

formulation, etc. Protein requirement for groupers Epinephelus sp. and

Plectropomus sp. has been published at 45-47 % of diet. However, higher protein

requirement (54% of diet) was reported for the most expensive humback grouper,

Cromileptes altivelis. Dietary requirement for essential amino acids, lipid, fatty

acids and vitamin, and also strategy for preparing cost effective feed formulaion will

be discussed in this paper.

mailto:[email protected]

13

ABSTRACT COLLECTION

14

Abstract Topic : Biology Education

IConMNS 127

Analysis of conceptual change facility through certainty of response index on

theory of environmental change with POEW method

M Maspupah, T Kurniati, and R Nurfitriani

UIN Sunan Gunung Djati Bandung

[email protected], [email protected], [email protected]

Abstract

In the teaching and learning process, children will build their own schemes and

develop concept through their experiences. POEW learning model (Predict –

Observe – Explain – Write) allows students to construct their knowledge in order to

understand scientific concepts and concepts in daily life. This study aims to analyse

POEW learning model in facilitating conceptual changes in students on material

changes in the environment. The research method is The Pre-experimental method.

The research design used was The one-group pretest - posttest design. The sample

used was taken by purposive sampling technique in class X SMA 1 Banjaran. Data

collection techniques through written test namely Pretest (before) and Posttest

(after). The result of the pretest-posttest processing obtained N-Gain of 0.4906 p-

ISSN : 2338-7173 e- ISSN 2615-0417 Jurnal Program Studi Pendidikan Biologi

(Bulan), Vol. (x), No.(x) 2 moderate categories and the Pattern of dominant

conceptual changes of students was Pattern I of 96.88% meaning that conceptual

changes of students experienced positive changes which were reinforced by a

reduction in misconceptions reaching 63.30%. The t-Paired Test result show t count

(19.75) > t table (2.04), at significance level of 5% so it can be concluded that the

application of the POEW Learning Model on material changes to the environment

can facilitate conceptual change of students.

Keywords : POEW, misconception, conceptual Change




15

IConMNS 130

Enhancing students critical thinking skills through TPACK framework

S Saadah, I Yusup, and N Aisyah


[email protected], [email protected],

[email protected]

Abstract

One of the 21st-century skills that must be developed is critical thinking skills.

Critical thinking skills are needed by students to face life challenges. The purpose of

this study was to analyze the effect of learning with the TPACK framework in

improving students’ critical thinking skills. The learning process in this study uses

blended learning assisted by Edmodo media. The research method used was quasi-

experimental with pre-test post-test control group design. The research instrument is

a test of critical thinking skills that have been tested for validity and reliability. The

results showed an increase in students critical thinking skills were better in the

experimental group compared to the control group. The statistical test results

showed a significant difference between the experimental class and the control class.

Thus it can be concluded that learning with the TPACK framework can improve

students critical thinking skills in the concept of the reproductive system.

Keywords : critical thinking, technological pedagogical, content knowledge,

reproductive system




16

IConMNS 155

The validity of Tri Hita Karana (THK) oriented blended learning tool to

improve students’ critical thinking ability

N P S R Dewi and D M Citrawathi


[email protected], [email protected]

Abstract

This study aimed to develop a blended learning-oriented learning tool Tri Hita

Karana (THK) in anatomy and human physiology courses that are valid for

improving students' critical thinking ability in Biology. Learning tools in this study

were developed using a 4D development model consisting of the following stages.

1) Define, 2) Design, 3) Development, and 4) Disseminate. At present, the research

is at the stage of developing and validating learning tool. The validity test performed

is content validity and construct validity. The content validity test was carried out by

finding the relevance between THK-oriented learning tools with the theory of

blended learning and learning materials used as guidelines. The construct validity

test was done by looking at the consistency of each component of THK-oriented

learning tool with the blended learning characteristics obtained from the results of

the validator's assessment. Based on the validator's assessment, the validity of the

learning tools in this study was classified as a very valid category. Furthermore, a

limited trial is conducted to see the practicality and effectiveness of learning tool.

Keywords : validity, blended learning, Tri Hita Karana, critical thinking



17

IConMNS 158

Carotenoids characterization of Caulerpa spp. and Gracilaria spp. seaweeds

using thin layer chromatography and potential effect as antioxidant

K S M Julyasih1 and I W P S Yasa

2

1 Universitas Pendidikan Ganesha,

2 Universitas Udayana

[email protected]

Abstract

There are two kind of seaweeds in Bali that has long been used as a source of food,

like Caulerpa spp. and Gracilaria spp. The study or publication about carotenoid

characterization of these seaweed and potential effect as antioxidant by lowering

serum Malondialdehyde level still very limited, therefore needs to be further study.

Study consisted of descriptive and experimental research. Descriptive study was

identified the types of carotenoids in Caulerpa spp. and Gracilaria spp.. Then an

experimental study using completely randomized design. Rats are divided into six

groups, and repeated four times, were treated respectively with standard diet as

negative control, high-cholesterol diet as positive control, high-cholesterol diet with

dosage of Caulerpa spp. extracts 20 mg and 60 mg/100 g bw rat/day and high-

cholesterol diet with dosage of Gracilaria spp. extracts 20 mg and 60 mg /100 g bw

rat/day. The result in descriptive study there were nine types of carotenoids such as,

neoxanthin, astaxanthin free, antheraxanthin, canthaxanthin, astaxanthin monoester,

fucoxanthin, chlorophyll b, astaxanthin diester, and beta carotene were identified in

Caulerpa spp. extract. In Gracilaria spp. there were eight types of carotenoids

identified consisting of neoxanthin, violaxanthin, astaxanthin free, antheraxanthin,

lutein, chlorophyll b, chlorophyll a, and beta carotene. In experimental study rats

were treated with high-cholesterol diet with Caulerpa spp. or Gracilaria spp. extract

at the dose of 20 mg and 60 mg/100 g bw/ day, plasma MDA, level were

significantly decreased (p < 0.05) if compared with rats that were treated with high-

cholesterol diet without Caulerpa spp. or Gracilaria spp. extract.

Keywords : carotenoids, antioxidant, malondialdehyde, Caulerpa spp., Gracilaria

spp.


18

IConMNS 202

The effectiveness of the think pair share learning model based on questions to

improve student participation and student learning outcome about histology

structure of digestive system

D M Citrawathi, N P M Widiyanti, and P B Adnyana


[email protected]

Abstract

The purpose of this study was to determine the effectiveness of Think Pair Share

learning based on questions models to increase student participation and learning

outcomes in studies of the histological structure of the digestive system. To achieve

these objectives, research was conducted on the biology study program at the

Faculty of Mathematics and Natural Sciences, Universitas Pendidikan Ganesha. The

research sample is the second semester students, amounting to 17 people. Cognitive

learning outcomes obtained a mean value of 76.0. Students who get a greater or

equal value of 70.0 were 76.5%. The conclusion the design of this study is one short

case study. The instruments used in this study include questionnaires and

observation sheets to assess student participation in learning, and knowledge tests to

assess student cognitive learning outcomes. The results obtained by the value of

student participation 47.1% in the good category, and 47.1% in the very good

category with an average value of 83.12. of the research were that the Think Pair

Share learning model based on questions can increase student participation and

learning outcomes in the study of the histological structure of the digestive system.

Keywords : think pair share, based on questions, participation, learning outcomes


19

IConMNS 213

Designing biology flipped classroom to foster active learning

P B Adnyana


[email protected]

Abstract

Flipped or inverted classroom is one of the learning strategies in the era of the

industrial revolution 4.0. Students use information technology such as the internet,

laptops, tablets, and smartphones to facilitate learning. Flipped classroom can

encourage students to learn actively. It fully engages students by using mind-on

activities to master the subject and hand-on activities (practicum) to develop science

process skills. The flipped classroom design model consists of four steps, namely the

determination of topics, formulating learning outcomes, designing learning

activities, and evaluation. The learning activities consist of three stages, namely pre-

class, in- class, and post-class. The pre-class sessions are conducted at home with

the aim that students learn to understand the material concepts. The activities

include learning from multiple resources, watching videos, doing assignments, and

answering questions. Through these activities, students are expected to have an

understanding of the subject. In-class session, students are involved in learning

activities and practicum in groups, the teacher conducts clarifications and

confirmations. The advantages of this session are to promote the development of

critical and creative thinking, problem-solving skills, and science process skills, as

well as to improve interpersonal skills. In the post-class session, students are given

the opportunities to apply what they have learned including online assessments, such

as Kahoot, and encourage students’ creativity by giving project assignments.

Keywords : biology flipped classroom, active learning, inverted classroom


20

Abstract Topic : Chemistry

IConMNS 02

Growth of Glycine Barium Nitrate (GBN) crystals via slow evaporation method

accompanied by the application of external electric fields

P S E A Putra


[email protected]

Abstract

Glycine Barium Nitrate (GBN) crystals were grown by slow evaporation method

accompanied by the application of an external electric field. The application of

external electric field in crystal growth system is expected to align local dipole

moments, therefore, it could be expected that it will increase the quality of the

grown single crystal. GBN crystals were grown from their saturated solution with

slow evaporation method in Pyrex glass tube that was connected with a high voltage

power supply (15 kV). Crystal grew over a span of 16-28 days at 50 C with a

variation of electric field 0-5 kV/cm. Grown GBN single crystals has trapezoid-

shaped, with an typical dimension of 5x4x3 mm3. GBN crystals grown with various

electric fields were characterized with X-Ray powder diffraction method and it was

found that higher electric field can cause GBN diffraction peaks shifting to lower 2θ.

GBN adopt orthorhombic crystal lattice with space group P212121. Refinement

analysis have been carried out with Le Bail Method using Fullprof program. Results

of refinement indicated that lattice parameter a become longer, while b and c

decreases along with the increasing of electric field application. The crystal lattice

parameter a for GBN 0 kV / cm, 1 kV / cm, 2 kV / cm, 3 kV / cm, 4 kV / cm and 5

kV / cm are 8,2328 (3) Å; 8,2510 (2) Å; 8,2557 (1) Å; 8,2571 (1) Å; 8,2623 (2) Å;

and 8,2574 (2) Å respectively, while the lattice parameter b and c were decreased as

applied electric field increased.

Keywords : crystal, refinement, electric field


21

IConMNS 22

Heavy metal cations adsorption by cinnamoyl C-methylcalix[4]resorcinarene

I G M N Budiana

Nusa Cendana University

[email protected]

Abstract

Adsorption has been extensively studied as a costeffective method for removing a

wide variety of hazardous materials, such as dyes and heavy metals, from aqueous

solutions. The aim of this research is to synthesized and applicated of Cinnamoyl C-

methylcalix[4]resorcinarene (CCMCR) as the Cr(III) and Pb(II) adsorbent. The

cinnamoyl C-Metylcalix[4]resorcinarene was synthesized in 4 steps. They were

synthesis of C-methylcalix[4]resorcinarene via acid-catalyzed-condensation of

resorcinol and acetaldehyde, followed by O-acetylation, Friedel-Craft

cinnamoylation and hydrolysis. The characterization of the target compound was

performed by IR, 1H-NMR and C-NMR. The adsorption process using batch system.

Most parameters in batch system confirm that CCMCR is a good adsorbent for

Cr(III) and Pb(II). The Cr(III) uptake was bigger than that of Pb(II), and also Cr(III)

adsorption rate was faster than Pb(II). The adsorption kinetic both of Cr(III) and

Pb(II) adsorptions in batch followed pseudo 2nd

order kinetics model. It is mean that

the adsorption process depend on concentration and the quantity of active site. The

results of adsorption equilibirium study showed that in adsorption Cr(III) and Pb(II)

onto CCMCR, Langmuir isotherm model was more applicable than Freundlich

model.

Keywords : adsorption, synthesis, application, Pb(II), Cr(III), Cinnamoyl, C-

methylcalix[4]resorcinarene, batch system


22

IConMNS 23

Antibacterial evaluation of 2,4-dihidroxy benzoic acid on Escherichia coli and

Vibrio alginolyticus

I G M N Budiana

Nusa Cendana University

[email protected]

Abstract

In recent years, human pathogenic microorganisms have developed resistance in

response to the indiscriminate use of commercial antimicrobial drugs commonly

employed in the treatment of infectious diseases. Therefore, research to discover the

new anti-bacterial compounds is important to do. This study was carried out with an

objective to synthesis and invaluated the antibacterial potentials of 2,4-dihidroxy

Benzoic Acid. The aim of the study is to synthesis and assess the antimicrobial

activity and to determine the zone of inhibition of on Escherichia coli and Vibrio

alginolyticus. The synthesis of 2,4-dihidroxy Benzoic Acid was conducted by

reacting 2,4-dihidroxy benzene and carbon dioxide. The characterization of the

target compounds was performed by IR and MS spectrometers. The growth of the

tested bacteria was observed using a colony counter to see the diameter of the

resistance which was caused by the test solution. The antibacterial activity test

indicated that 2,4-dihidroxy Benzoic Acid had the potential as an antibacterial

against Escherichia coli and Vibrio alginolyticus. The activity was known from its

inhibition zone. At the concentration of 100 ppm, 2,4-dihidroxy Benzoic Acid

solution showed an inhibitory diameter of 17.8 mm and 17.0 mm respectively, while

amoxicillin antibiotic showed of 16.6 mm and 16.7 mm. These results indicate that

2,4-dihidroxy Benzoic Acid have a greater strength than amoxicillin in inhibiting

bacterial growth Escherichia coli and Vibrio alginolyticus.

Keywords : antibacterial, synthesis, characterization, inhibition zone


23

IConMNS 101

Utilization of nata de pina as adsorbent for adsorption of remazol black B

textile dyes

P P Pradnyani and I N Sukarta



Abstract

This research was conducted with the aim to determine the efficiency percent, the

pattern of adsorption isotherm, and the maximum adsorption power of the

adsorption of remazol black B textile dyes using cellulose nata de pina membrane.

The cellulose nata de pina membrane in this study was made with the basic

ingredients of pineapple skin waste. The result showed that the percentage of the

efficiency value of remazol black B textile dyes using the cellulose nata de pina

membrane obtained was 31.69119%. This value is obtained at the condition of the

optimal remazol black B solution at pH 2, concentration 60 mg/L, and contact time

for 60 minutes. Remazol black B isotherm adsorption pattern by cellulose nata de

pina membrane fulfilled the Langmuir adsorption isotherm curve with R2 = 0.952

and maximum membrane adsorption capacity of 12.5 mg per gram of adsorbent.

Keywords : adsorption, cellulose nata de pina membrane, remazol black B textile

dyes




24

IConMNS 109

Alkaline activation of marble-like carbon structure and its application for

inflammatory adsorption

M Ulfa1, I M Gumilar

1, and D Prasetyoko

2

1 Universitas Sebelas Maret,

2 Universitas Teknologi Sepuluh Nopember


Abstract

For the first time, carbon microspheres successfully synthesized by using block

copolymer F127 combined with gelatin, sucrose and H2SO4 as soft template, the

source of carbon, catalyst, respectively. The following step of synthesis are

hydrothermal treatment, evaporation, carbonisation and pyrolysis treatment under

nitrogen flow. Results have activated carbon microspheres by a 10% KOH solution

at room temperature for 12, 24, and 48 h, respectively then characterized by SEM

and FTIR. The microspheres Activated carbon adsorption have used for ibuprofen.

The characterization results Showed that had carbon microspheres as marbles-like

morphology with a diameter of 1-10 μm completed by C-OH, -CH3, CN, -CNN, C =

O, C = C, NH2, CK functional groups as the most. So this study shows that

increasing the activation time of the carbon microspheres have enhanced the

equilibration time and the which is reach equilibrium at a range of 15-25 min and

adsorption capacity range at 55.1-59.9 mg/g. So in general conclusion carbon

microspheres have could be potential material as drug delivery.

Keywords : alkaline activation, marble-like carbon, inflammatory drug, adsorption




25

IConMNS 124

Microencapsulation of rukem fruits (Flacourtia Rukam Zoll.&Mor.) extract

using maltodextrin with spray drying method

M Melanie, L N Lestario, and M Rahardjo

Universitas Kristen Satya Wacana


[email protected]

Abstract

Rukem (Flacourtia Rukam Zoll.&Mor.) is an exotic fruit of Indonesia that has

potential as a natural dye due to anthocyanin content. Anthocyanin were unstable to

temperature, oxygen, and light, consequently need a technology to maintain the

color by microencapsulation. The aim of this study was to determine

microencapsulation efficiency of rukem extract with variation of coatings 40%,

50%, 60%, 70%, and 80% (w/v). Rukem fruit was extracted using 5% citric acid

solution (w/v) then microencapsulated with maltodextrin by spray drying. The

chemical characterization of microcapsule included moisture, ash, pH, crude fiber,

L*, a*, b*, total anthocyanin and antioxidant activity. Results showed that

microcapsule with ratio 40% (w/v) was the most efficient among all concentration.

Microcapsule ratio 40% (w/v) showed highest antioxidant activity (74,277 ±

0,410%) and total anthocyanin (3,963 ± 0,083 mg/100g) with encapsulation

efficiency (3,281 ± 0,069%). This study have an impact on research of rukem fruit

and future prospect in food chemistry also application as natural dye on food.

Keywords : anthocyanin, antioxidant, microencapsulation, maltodextrin, rukem




26

IConMNS 125

Chemical composition of the essential oils from red Citrus maxima cv. Bali

Isolated by steam distillation and solvent extraction

I W Muderawan


[email protected]

Abstract

Citrus peels are a potential source of valuable essential oils. The essential oils are

one of the rich sources of bioactive compounds and have an impressive range of

food, perfume and medicinal uses. In the present study the yield and chemical

composition of the essential oils isolated from fresh peels of red Citrus maxima

cultivated in Bali by two isolation techniques were investigated. The essential oil

contents of the red C. maxima were 1.44 and 2.15 % for steam distillation and

solvent extraction techniques, respectively. The chemical composition of these

essential oils was determined by gas chromatography coupled with mass

spectrometry (GCMS). Using GCMS, a total of 29 and 58 chemical constituents

were identified in the fresh peel essential oils of C. maxima isolated by steam

distillation and solvent extraction, respectively. The major constituents of red C.

maxima peel essential oils from Bali isolated by steam distillation technique were

(+)-limonene (90.67%), -cubebene (3.17%), eugenol (1.56%), and -myrcene

(1.19%). Whereas, the major constituents of red C. maxima peel essential oils

isolated by solvent extraction technique were (+)-limonene (81.26%), -myrcene

(8.57%), geranyl butyrate (1.85%), -pinene (1.54%), neryl acetate (1.34%), -

terpineol (1.06%), and linalool (0.91%).

Keywords : Citrus maxima, chemical composition, steam distillation, solvent

extraction


27

IConMNS 129

Preparation of silver-chitosan-alginate nanocomposite film as antibacteria

material

E Susilowati, M Maryani, A Ashadi, M Masykuri, and B Hastuti

Universitas Sebelas Maret

[email protected], [email protected], [email protected],


Abstract

Preparation of silver-chitosan-alginate (Ag/Kit/Alg) nanocomposite film as an

antibacterial material has been done. Nanocomposite film of Ag/Chit/Alg was

carried out through casting method of colloidal nanocomposite Ag/Chit/Alg).

Colloidal was made through a chemical reduction method of AgNO3 precursor salts

assisted by sunlight with chitosan as a stabilizer agent and reducing as well and

NaOH as an accelerator. Furthermore, the alginate solution was added to form

Ag/Kit/Alg nanocomposite colloidal. The formation of silver nanoparticles was

indicated by the appearance of localize surface plasmon resonance (LSPR)

phenomenon which was characterized using a UV-Vis spectrophotometer. The

shape and size of silver nanoparticles were characterized using transmission electron

microscopy (TEM). Characterization of Ag/Kit/Alg nanocomposite films includes

swelling, mechanical solubility, crystallinity, surface morphology and water vapor

permeability (WVP). Testing of antibacterial activity was carried out on colloidal

and film Ag/Chit/Alg nanocomposite using diffusion method. The results showed

that the formation of silver nanoparticles was characterized by the appearance of

LSPR phenomenon at the peak of 403.50 - 412.50 nm. Silver nanoparticles are a

spherical shape with a size dominated at 5-9 nm. The physical and mechanical

properties of films are influenced by the concentration of silver nanoparticles. The

greater concentration of precursor salt AgNO3 increase swelling and solubility of

Ag/Kit/Alg nanocomposite film. The tensile strength of the film tends to decrease

due to the presence of Ag nanoparticles, but the crystallinity increases. The

nanocomposite film of Ag/ kit/Alg has a rough and porous structure with a higher

Water Vapor Permeability value compared to Ag/Chit films. The nanocomposite

films of Ag/Kit/Alg have high antibacterial activity against S.aureus and E.coli

bacterial clinical isolates.

Keywords : nanocomposite, silver, nanoparticle, chitosan, alginat, antibacterial

activity






28

IConMNS 132

Effect of addition of gamal leaf (Gliricidia sepium) and white rice washing water

to levels of NPK liquid organic fertilizer urine cow

N L P L S Wahyuni and M V Oviantari



Abstract

Research has been conducted on the effect of adding gamal leaves (Gliricidia

sepium) and white rice washing water to the levels of NPK liquid organic fertilizer

(LOF) of cow urine. The potential possessed by the leaves of gamal and white rice

washing water is considered good when used as an additional ingredient in cow

urine LOF, to prove that LOF will be applied to mustard plants (Brassica chinensis

var.parachinensis). This research is a laboratory experimental study which aims to

determine the levels of nitrogen (N), phosphorus (P), and potassium (K) LOF of cow

urine added with gamal leaves and white rice washing water for later compared to

the standard N, P, K based on Regulation of the Minister of Agriculture No. 70 /

Permentan / SR.140 / 10/2011. The purpose of the next study was to determine the

composition of the weight of gamal leaves and optimal white rice washing water

based on the levels of N, P, K LOF. In addition, this study aims to analyze the effect

of optimal LOF on the growth of mustard plants. Nitrogen content in LOF was

determined by the Kjeldahl method, while phosphorus levels were calculated by

UV-Vis spectrophotometry method, and the potassium content was carried out by

ICP (Inductively Coupled Plasma) method. The results showed that LOF consisting

of 500 mL of cow urine, 4 kg of gamal leaves and 20 mL of white rice washing

water had the highest levels of N, P and K which were the closest standard N, P, K

Regulation of the Minister of Agriculture No. 70 / Permentan / SR .140 / 10/2011

namely 0.15 N, 0.11 P, 0.33 K. In fertilizing 2 weeks the growth of leaf width and

wet weight and dry weight of mustard plants are higher with higher LOF volume. So

it can be concluded that the LOF in this study has the potential as a substitute for

chemical fertilizers and is good for meeting the nutrient needs of mustard plants.

Keywords : white rice washing water, gamal leaves, cow urine, mustard plants



29

IConMNS 133

Utilization of banana peel as source of pectin for edible coating

L Mahardiani, R Larasati, and E Susilowati



Abstract

The purposes of this research were to determine (1) the characteristics of pectin

extracted from banana peel viewed from the yield, moisture content, equivalent

weight, methoxyl content, galacturonic acid level, degree of esterification and its

functional group and (2) the effect of the concentration of edible coating solution on

different storage temperature. The pectin obtained was added with additives such as

CMC, glycerol. Potassium sorbate and stearic fatty acids to make different

concentration of edible coating solution of 2 and 10%. The edible coating solution

was applied to tomatoes. The results showed that yield of pectin from banana peel

was 15.16% with moisture and ash content were 4.33 and 9.40%, respectively.

Furthermore, the pectin was contained 2.60% of methoxyl, 35.91% degree of

esterification with 666.67 mg of equivalent weight. Indaddition, carboxylic acids

and esters are dominant functional groups found in pectin from banana peel. From

edible coating of tomato showed that tomato coated with 10% pectin concentration

was kept best longer compared with tomato coated with 2% pectin and uncoated for

both in cool and room temperature storage.

Keywords : waste utilization, pectin, edible coating




30

IConMNS 136

Levels of anthocyanin and antioxidant activity of grape skin (Vitis vinifera L)

local of waste making process of red wine

S Maryam


[email protected]

Abstract

The purpose of this study was to determine the levels of anthocyanins and

antioxidant activity in the local grape skin as a result of the waste made from red

wine. Anthocyanin is a phenolic compound classified as flavonoids. The subjects in

this study were local grape skins and the research objects were anthocyanin levels

and antioxidant activity. Determination of anthocyanin levels, beginning with the

extraction process of local grape skin using ethanol, and analyzed using HPLC.

Antioxidant activity was analyzed by DPPH. The results showed that the

anthocyanin level in grape skin (Vitis vinifera L) was 2754 mg / 100 gr. Antioxidant

activity (IC50) of 15 µg / mL. Based on the results of the study it was suggested that

grape skin which is a waste of the wine making process can be used as a supplement

to overcome free radicals.

Keywords : anthocyanin, antioxidant activity, grape skin


31

IConMNS 137

TiO2 purification from ilmenite the tin industry by product for pigment

S A Aviandharie, N N Aidha, B N Jati, and A A Cahyaningtyas

Badan Penelitian dan Pengembangan Industri


[email protected]

Abstract

Ilmenite, a by-product of the tin industry in Bangka, is very abundant and has great

potential because it still contains 53.83% titanium oxide. One of TiO2 benefits is

pigment. TiO2 pigment in Indonesia still imported. This research aims to extract

TiO2 from ilmenite with purity level above 80%. The TiO2 extraction used repeated

leaching methods with sulfuric acid. Then followed by the hydrolysis process with

the addition of seed and calcined at 350 C. TiO2 products were analyzed using X-

ray fluorescence (XRF) and X-ray diffraction (XRD). The content of TiO2 obtained

in this process is 83.36% and is in the form of rutile crystals. The purity and crystal

formed of this TiO2 product suitablewith the minimum standards of TiO2 pigments

required by ASTM D 476. The process of extracting ilmenite into TiO2 can be an

alternative to solve environmental problems in the tin industry while increasing the

economic value as TiO2 products.

Keywords : ilmenite, TiO2, pigment, sulphate acid





32

IConMNS 139

The process of making Beta-Carotene emulsion as an antioxidant from red

virgin palm oil (RVPO)

S Agustina, E Oktarina, and N N Aidha

Indonesia Research Center of Chemical and Packaging, Ministry of Industry


Abstract

Indonesia is the largest producer and exporter of palm oil in the world. RVPO is an

oil palm derivative containing beta-carotene. Beta-carotene used in functional,

cosmetic, and pharmaceutical food products. The stability of beta-carotene

antioxidants influenced by temperature, light, and total oxygen, to get stable beta-

carotene antioxidants, the coating is done in the form of an emulsion. The purpose of

this study was to obtain the technology for making beta-carotene emulsions as

antioxidants from RVPO. In this study, beta-carotene emulsions were made using a

pressurized homogenizer. The process condition used is 30 MPa for 6 minutes. The

variables used are the type of emulsifier (tween and CMC) and the ratio of aquadest

: RVPO (2:1; 3:1; 4:1). Analysis of research results in the form of antioxidant

activity, emulsion stability, pH, and viscosity. The results show that the best

emulsion is using an emulsifier tween by comparison 3:1. The beta-carotene

emulsion products can used as preparations for cosmetics or pharmaceuticals.

Keywords : beta-carotene, emulsion, red virgin palm oil




33

IConMNS 179

Adsorption of methylene blue dyes using pectin membrane

B Hastuti, S N Afifah, B Mulyani, and E Susilowati



[email protected]

Abstract

Environmental pollution caused by methylene blue textile dyes is very dangerous for

the aquatic environment and human health. To overcome this problem, various

adsorbents have been developed for the processing of methylene blue liquid waste.

Pectin is a biomaterial isolated from the plant cell walls. Pectin is an anionic

polymer, many contain active groups which able to bind positive ions of methylene

blue. This experiment was done to get Pectin membrane by dissolving of pectin into

a 5% acetic acid solution. The optimal condition of the adsorption of methylene blue

by pectin membrane. The functional groups of pectin membranes were analyzed by

infrared spectroscopy. The adsorption of methylene blue was analysis by using

Ultraviolet-Visible Spectroscopy. The characterization of FTIR showed that pectin

membranes have carboxyl and hydroxyl active groups. The results showed that the

optimum condition of the adsorption process of methylene blue dye was within pH 4

with adsorption capacity of 0.75 mg/g and 60 minutes of contact time with

adsorption capacity 17.64 mg/g.

Keywords : pectin membrane, methylene blue, carboxyl group, hydroxyl group





34

IConMNS 203

Antibacterial and toxicity activities itchy leaves [Laportea decumana (Roxb.)

Wedd] extract

E S Simaremare, E Gunawan, Y R Yabansabra, and J D Kalor

Universitas Cendrawasih

[email protected]

Abstract

Itchy leaves or stinging nettle have been used as medicinal plants in various

countries, even in Indonesia. Papuans use Laportea decumana (Roxb) Wedd as

traditional medicines for local people as an anti-fatigue, anti-stiff and anti-fatigue

drug. The purpose of this study was to determine the antibacterial and toxicity of the

L. decumana fraction. Samples were taken from Waibron and Serui, Papua

Indonesia. The samples were determined at the Center for Biodiversity

Development, Papua State University, Manokwari, West Papua. L. decumana leaf

was made in the powder of simplicia, extracted with ethanol then fractionated using

three solvents namely n-hexane, ethyl acetate, and ethanol. Extracts and fractions

were tested for antibacterial against bacteria and cytotoxics test. The results showed

that the L. decumana fraction had activity antibacterial for E. coli and S. aureus

bacteria.. The toxicity test showed that fraction n-hexane and ethyl acetate was toxic

while ethanol was not toxic.

Keywords : Laportea decumana (Roxb) Wedd, antibacterial, toxicity, activity,

Papua


35

IConMNS 214

A novel hydrogen peroxide sensor based on bacteria peroxidase thermostable

immobilized on egg shell membrane modified do meter electrode

I N Tika


[email protected]

Abstract

A new method for making hydrogen peroxide sensors was developed with the

immobilized thermostable peroxidase enzyme from thermophilic bacteria (BTP) on

modified chicken eggshell membrane (SEM), in the DO meter electrode support.

SEM is activated by the glutaraldehyde compound as a crosslinker with the first

peroxidase enzyme that produces an interface for assembly with a DO meter

electrode. As many as 50 units of the peroxidase enzyme is bound to the membrane

chicken egg shells. As much as 87% of the enzyme is absorbed chemically into the

membrane (SEM) Fix BTP displayed excellent electrocatalytic response to the

reduction of hydrogen peroxide. Performance and factors influencing results

biosensors are studied in detail. The resulting biosensor shows a fast amperometric

response (within 5 seconds) to H2O2. Detection the biosensor limit is 10.0 mol l-1

,

and the linear range is from 25.0 mol l-1

to 12.0 mmol l-1

. Furthermore, the result

biosensors show high sensitivity, good reproducibility, and long-term stability.

Keywords : hydrogen peroxide sensors, bacteria peroxidase thermostable, egg shell

membrane


36

IConMNS 223

Contamination Test of Salmonella SP. in Household Industry White Tofu

Naimata Kupang

Yuliani Ni Nyoman

1, Blegur Fatmawati

2, Sutaryana Juliady Dharma

3, and Budiana I

Gusti Made Ngurah4

1,2,3 Pharmacy Health Polytechnic Study Program Ministry of Health Kupang

4 Chemistry Study Program, University of Nusa Cendana Kupang

[email protected]

Abtract The test of Salmonella bacteria Sp. contamination . in white tofu produced in home

industries in Naimata has been conducted. The test was conducted at the

Microbiology Laboratory of the Food and Drug Supervisory Agency of the Province

of East Nusa Tenggara in Kupang on August 3 - August 8, 2016. The research based

on the level of consumption of tofu produced in home industries in Naimata is quite

high by the community. The purpose of this study was to determine whether the

white tofu produced in the household industry in Naimata was contaminated with

Salmonella bacteria or not. The research process consists of three stages, namely,

the Pre-enrichment stage, where the sample is weighed 25 grams aseptically and

then mixed into 225 mL BPW media and incubated at 37 ° C for 24 hours,

enrichment stage is the stage where 1 mL of culture in the previous stage was taken

and 0.1 mL was then added to the media so that MKTTn and RVS were 10 mL

which were then incubated at 37 ° C and 42.5 ° C for 24 hours, the Inoculation and

Identification stage was culture from MKTTn media and RVS was taken then

planted in the media XLD and BGA specific. The data analysis method used is only

comparing the test results from the research sample with SNI: 01-3142-1998

regarding the Quality Requirements of Tofu as a reference. This test is also made a

positive comparison or control, which is also made XLD and BGA media planted

with culture of Salmonella bacteria. The results of the ceramics test of Salmonella

bacteria in white tofu stated that the white tofu produced in the home industry in

Naimata was not contaminated with Salmonella bacteria Sp. with a negative value of

colonies / 25 grams of samples according to the Indonesian National Standard SNI:

01-3142-1998 regarding the quality requirements of tofu.

Keywords: Bacterial Contamination, Salmonella Sp., White Tofu, Home

Industry

37

Abstract Topic : Chemistry Education

IConMNS 27

Profiles of environmental literacy of senior high school students based on

gender

I W Redhana and I N Suardana



Abstract

The purpose of this study was to describe the profiles of environmental literacy of

high school students based on gender. The population of the study was all high

school students in the Province of Bali, Indonesia. The samples were determined by

a quota technique wherein each district was taken 50 people randomly. Thus, the

total samples were 450 people. The percentages of male and female students were

33.56% and 66.44%, respectively. The study was conducted by a survey method. A

research instrument was an online questionnaire made using google forms. The

questionnaire consisted of six aspects, namely students’ information as well as

knowledge, attention, sensitivity, attitude, and behavior towards the environment.

Students were given a link of the questionnaire through their teachers. Students were

asked to fill out an online questionnaire. The results showed that the percentages of

environmental literacy of male students which included knowledge, attention,

sensitivity, attitudes, and behavior were 52.99%, 79.61%, 75.64%, 64.33%, and

68.31%, respectively. On the other hand, the percentages of environmental literacy

of female students which included knowledge, attention, sensitivity, attitudes, and

behavior were 53.31%, 78.74%, 75.94%, 64.99%, and 69.18%, respectively.

Categories of knowledge, attitudes, and behavior aspects for male and female

students were sufficient, respectively, while the categories of attention and

sensitivity aspects for male and female students were high, respectively. All aspects

of environmental literacy did not differ significantly between male and female

students.

Keywords : attention, attitude, behavior, environmental literacy, gender, sensitivity



38

IConMNS 43

Using of electrolysis learning media for developing high order thinking

C Z Subarkah, A Trisnawati, C D D Sundari, and A Malik

UIN Sunan Gunung Djati


[email protected]

Abstract

Micro scale IIC (Integrated Instrument Component) is made with the principles of

green chemistry and worksheets are used to develop high-order thinking on

electrolysis concepts. This study uses an experimental method with a short case

study model on second semester chemistry education student who follows

electrolysis material. The measured ability of high-order thinking refers to Bloom's

taxonomy revised. Research results showed that the value of the average ability to

analyze, 77 is in the good category, the ability to evaluate, 82 with a very good

category, and the ability to create, 76 with a good category. Learning media in the

form of micro scale IIC and worksheets can develop high-order thinking.

Keywords : learning media, high order thinking, electrolysis





39

IConMNS 44

The implementation of flipped learning model in class

L P R Ukirsari, I W Subagia, and N P Ristiati



Abstract

Flipped learning model implementation is one of the impacts of the science and

technology development. The purpose of this literature review is to define the

method, objectives and factors affecting the flipped learning model implementation

in learning. Literature review was used for developing this paper. The result

revealed that there were 22.7% of researchers who used qualitative methods and

77.3% of studies using mixed methods. There were 35.3% of mixed method uses

using quasi-experimental research designs. Pretest and post-test were conducted to

determine the increase in students' knowledge after using the flipped learning model.

Based on the objectives of the study, 40.9% of the research compared the use of

flipped learning models and traditional learning models. There were 59% of journals

that aim to find out students' perceptions and motivations in participating in

learning. Overall, the results of the study show that the implementation of the

flipped learning model has a positive impact on the learning process. These results

can be seen from the improvement of student learning outcomes and students'

perceptions toward implementation of flipped learning model.

Keywords : flipped learning model, learning, qualitative, mixed method, motivation




40

IConMNS 66

Development of chemistry learning book based on case study to improve

students’ learning outcome

L A Widiandari, I W Redhana, and A A I A R Sudiatmika



[email protected]

Abstract

This study aimed to describe characteristics, validity, practicality, and the

effectiveness of case study based chemistry learning book. This type of study is

research and development by adopting the Thiagarajan model. Data of the study

included the results of need analysis, product planning, validity, practicality, and

effectiveness of textbooks. The product of the study was the case study based

chemistry learning book. The results of the study showed that (1) the characteristics

of the learning book developed presented cases related to chemistry topics, and (2)

the learning book developed met the requirements of validity, practicality, and

effectiveness. The learning book could be used to improve student learning

outcomes.

Keywords : case study, learning book, learning outcomes





41

IConMNS 67

Development of green chemistry learning book to improve students’ learning

outcome

I D A S W A Dewi, I W Redhana, and P B Adnyana



[email protected]

Abstract

This study aimed to produce a green chemistry learning book to improve students’

learning outcome. Type of study was a research and development by adopting the

Thiagarajan model. The stages of this study included (1) define phase including

front-end analysis, students’ analysis, task analysis, concept analysis, and specifying

instructional objectives, (2) design phase including preparation of syllabus, lesson

plan and the green chemistry learning, (3) develop stage including testing of

validity, practicality and effectivity of the green chemistry learning book. The

results of the study indicated that (1) the characteristics of the learning book which

were developed included the presentation of the dangers of synthetic chemicals, the

prevention of the use of synthetic chemicals, and the substitution of synthetic

chemicals with environmentally friendly materials, (2) learning book developed had

valid, practical and effective categories. The learning book could be applied to

improve students’ learning outcome.

Keywords : learning book, learning outcomes, green chemistry





42

IConMNS 68

Development of multiple representation chemistry learning book to improve

students’ learning outcomes

K Widiastari, I W Redhana, and N K Rapi



[email protected]

Abstract

This study aimed to produce a multiple representation chemistry learning book. The

study was a research and development by adopting a 4-D model by Thiagarajan. The

study included define, design, development, and disseminate steps. The results

showed (1) teachers and students considered that the learning book was important to

use in chemistry learning, (2) the learning book developed contained three levels of

representations of chemistry concepts, including macroscopic, sub-microscopic, and

symbolic, (3) the learning book being developed had included valid, practical, and

effective categories. Based on the study, the learning book could be applied to

improve the students’ learning outcomes.

Keywords : learning book, learning outcomes, multiple representations





43

IConMNS 78

Pre-experiment assignment on drafting of guided investigation plan in

optimizing classroom inquiry learning

I B N Sudria, I W Redhana, and I W Suja



Abstract

This classroom action research aimed at building investigation learning spirit of

students as well as in finding a solution of the commonly obstacle of time allocation

limitations of 90 to 135 minutes for inquiry learning in a classroom. This research

supported by the success of developing a number of small inquiry learning units of

Chemistry sub-topics. Each learning unit which spent 90 to 135 minutes in the

classroom provided a set of learning devices with same content of concepts and

aligned learning steps following scientific approach. The set of devices consisted of

lesson plan, student worksheet, learning text, and assessment kit. The pre-

experiment research actions at home involved students individually to list

information existing in the introduction paragraph/s and/or observed around which

lead to investigation question, and then write investigation question/s, related

hypothesis statement/s, and experiment design in the provided student worksheet.

The classroom learning were conducted in small groups and begun with discussion

within a group to decide and refine the experiment design by considering the draft

which had evolved as the pre-assignment, and then they collected primary and/or

secondary data, analyzed data, wrote conclusion, and presented their work. Every

conducted learning unit was closed with take-home enrichment task and take-hot

classroom after completing all units. This action research was successful as shown

by the student improvement on the investigation work documented in the

worksheets and a steadily increase of correlation of take home test scores with post-

test scores of the related concepts

Keywords : pre-experiment assignment, investigation plan, investigation learning

spirit





44

IConMNS 91

Mental model of prospective teachers on structure and properties correlation of

organic compounds

I W Suja, I W Redhana, and I B N Sudria



[email protected]

Abstract

This study aims to determine the profile of prospective teachers’ mental model on

the correlation of structure and properties of organic compounds before and after

learning by implementing the TripleChem learning model. Subjects were students of

the Chemistry Education Department of Ganesha University of Education, who are

taking courses in Organic Chemistry I in 2018/2019. The subjects of the study were

22 people. Data were collected through two tier achievement test, consists content

part (multiple choice) and reason (description). The data were analyzed

descriptively. The results showed the mental models of prospective teachers before

learning only 1.36% classified as a conceptual model. After learning by

implementing TripleChem learning models, conceptual models increased to reach

62.73%. The students’ alternative mental models before and after the study,

including specific misconceptions (21.82% and 8.64%), and partially correct

(31.36% and 28.64%). The data show that the TripleChem learning model can

construct chemistry mental model of prospective teachers on the correlation of

structure and properties of organic compounds

Keywords : mental models, alternative mental models, conceptual models





45

IConMNS 110

Students’ mental models in acid-base topic based on gender

V D Putriani, I W Redhana, and S Maryam



[email protected]

Abstract

This study aimed to describe differences of student’s mental models based on gender

and the factors influencing the student's mental models in understanding acid-base

topic. The study was survey research. The population consisted of 279 students of

11th-grade of Mathematics and Natural Sciences Classes of SMA Negeri 1

Singaraja in Buleleng Bali at an academic year of 2018/2019. In this study, all

members of the population became members of the sample. The data needed in this

study were the student's mental model scores. Data were collected using a diagnostic

test. Data were analyzed descriptively by grouping student's mental models based on

gender. The results showed that there was no significant difference in student’s

mental model based on gender. In addition, most of the factors that influence

student’s mental model were the internal and external factors.

Keywords : acid-base, diagnostic test, gender, mental model




46

IConMNS 111

Profile analysis of mental models of class 10th-grade students on reduction and

oxidation topic

P Negara, I W Redhana, and N Tika



[email protected]

Abstract

This study aimed to describe the profile of the students’ mental models of SMA

Negeri 1 Singaraja on topic of Reduction and Oxidation. The research was a survey

research. The populations of the study were 293 students of the 10th-grade of SMA

Negeri 1 Singaraja, Bali academic year 2018/2019. In this study, all members of the

populations become members of the samples. Data were collected through two-tier

diagnostic test to obtain scores on students’ mental models. Data analysis was done

by grouping students into scientific, synthetic, and initial mental models. The results

showed that students had scientific, synthetic, and initial mental models of 2.08%,

58.53%, and 39.33% respectively.

Keywords : reduction and oxidation, students’ mental models, two-tier diagnostic

test




47

IConMNS 113

Analysis of students’ learning interest toward chemistry

L G Suryani, I N Suardana, and I W Redhana



[email protected]

Abstract

This study aimed to describe the profiles of student’s learning interest toward

chemistry of public senior high schools in Tabanan City, Bali Province, Indonesia

and the factors that affect that interest. The study was survey research. The

population consisted of 418 the tenth- and eleventh-grade students of Mathematics

and Natural Sciences Classes of public senior high schools in Tabanan City, Bali

Province, Indonesia in a school year of 2018/2019. The number of samples used in

the study was 223 students of SMA Negeri 1 Tabanan and 195 students of SMA

Negeri 2 Tabanan taken using proportionate a stratified random sampling technique.

Data were collected by using a questionnaire, an observation sheet, and an interview

sheet, while the factors that affect that interest were collected using the

questionnaire and the interview sheet. The results showed that in general, the

profiles of students’ learning at public senior high schools were very high (18%),

high (48%), moderate (30%), low (4%), and very low (1%). The student’s learning

interest was affected by internal and external factors. The internal factors included

physical health, intelligence, motivation, and learning styles. Meanwhile, the

external ones included families, teachers, teaching materials, as well as school and

social environment.

Keywords : chemistry, learning interest, public senior high schools




48

IConMNS 114

Roles model of teachers in facilitating students learning viewed from

constructivist theories of learning

W Subagia


[email protected]

Abstract

Human learning has been understood as a complex process because human learning

involves not only physical senses processes, but also cognitive processes. This paper

aimed at describing and explaining teacher’s role model in facilitating students

learning. The description and explanation were developed based on constructivist

learning theories explaining learning as the process of construction of knowledge by

individual student or learner in respond to new learning experiences. The discussion

results described three different roles of teacher in conjunction with the

characteristics of students’ response in learning process. The characteristic of

students can be classified into three, namely the excited students, the unresponsive

students, and struggle students. The roles of the teacher in respond to the

characteristic of the students are as a learning supporter for excited students, as a

learning motivator for unresponsive students, and as a learning model for struggling

students. These roles will facilitate all students to learn joyfully and meaningfully

through cycles involving assimilation, accommodation, and equilibration processes.

Keywords : roles model, teachers, learning, constructivist


49

IConMNS 126

Learning media based on three level representation and inquiry for electrolysis

cell materials

I Farida, M Dian, and F S Irwansyah



Abstract

Research has been conducted aimed at designing three-level representation-based

learning media in electrolytic cell material. The research product in the form of a

model kit equipped with inquiry-based worksheets was developed through the stages

of design-based research. The model kits and worksheets produced have the

characteristics: integrating macroscopic, submicroscopic and symbolic levels of

representation, developing the ability of chemical representation and scientific

performance. The submicroscopic and symbolic representations are explored using

particle models made of magnetism to simulate the transfer of ions and electrons

during an electrolysis reaction. Validation and testing of products and inquiry-based

worksheets show the product is valid and feasible to use.

Keywords : three-level representation of chemistry, learning media of chemistry,

electrolysis cell




50

IConMNS 187

Practicality test of a students worksheet (LKS) based on a scientific approach

assisted by a simple chemistry practicum in the basics of acid base titration

P Lusiana, L Wiratma, and S Maryam



[email protected]

Abstract

This study focused on describing and explaining the practicality of a Students’

Worksheet (LKS) based on a Scientific Approach Assisted by a Simple Chemistry

Practicum in the Basics of Acid Base Titration. This study was a research and

development (R&D) using the Four-D model which consists of define, design,

develop, and disseminate. This study was limited in developing stage, which test the

practicality of the Students’ Worksheet (LKS) based on a scientific approach. The

instruments used were observation guidelines, students’ response questionnaires,

and interview guidelines. The result of observation showed that students can work

on the Students’ Worksheet (LKS) and did acid-base titration using a dropper pipette

as a substitute of burette well. The analysis of students’ response questionnaire

based on aspects of attractiveness, content, self-motivation, and language showed

the practical criteria with an average score of 3.2 from a maximum score of 4.0. The

result of interviews with students showed a positive response to the Students’

Worksheet (LKS). Based on the result of the study, the Students’ Worksheet (LKS)

that developed has practical criteria so it was feasible to be used in the chemistry

learning process.

Keywords : scientific approach, acid base titration, simple chemistry practicum




51

IConMNS 209

Profile of student’s science process skills on acid base titration practicum at

class XI MIPA SMA Negeri 1 Singaraja

M D Adiningsih, I W Karyasa, and I W Muderawan


[email protected]

Abstract

The research was aimed to describe the profile of student’s science process skills

and describe the factors that influence science process skills of class XI MIPA SMA

Negeri 1 Singaraja in the implementation of acid base titration practicum. The

research conducted by using a phenomenological qualitative approach. The methods

that used to collect data in this research are observation, interviews, and

documentation. Data were analyzed by qualitative descriptive techniques. The result

that obtained is profile of student’s science process skills in class XI MIPA SMA N

1 Singaraja which is limited to mastering science process skills. Science process

skills that have been mastered by students consist of 7 aspects of skills, namely

measuring skills consisting of skills to measure the volume of solutions with

volumetric pipettes and measure the volume of solutions with burette, experimental

skills consisting of titration skills and using universal indicator, the skill of

observing, predicting, interpreting, applying concepts, and communicating. Skills

that is less mastered by students are concluding skills. Science process skills that are

not trained for students consist of 4 skills, namely the skills of formulating

hypotheses, controlling variables, designing investigations, and classifying. The

factors that influence the science process skills of students in the implementation of

acid base titration practicum are classified into four factors, namely tools, materials,

humans, and methods/techniques.

Keywords : acid base titration, practicum, science process skills


52

IConMNS 210

Analysis of student chemistry learning difficulties on buffer solution at SMA

Negeri 2 Banjar Buleleng Bali

N L I Sanjiwani, I W Muderawan, and I K Sudiana


[email protected]

Abstract

This research aims to describe and explain (1) students’ learning difficulties in

chemistry, (2) the distribution of students’ learning difficulties, and (3) the causative

factors of students’ learning difficulties to understand the topic of buffer solution at

SMA Negeri 2 Banjar. The subjects for this research were 154 students from all

class XI MIA and 1 chemistry teacher. The research method used a quantitative and

qualitative method. Quantitative methods are used to collect data on student learning

difficulties by using tests and the factors that cause learning difficulties using a

questionnaire, while qualitative methods are used to collect data on factors that

cause learning difficulties using observation and interview guidelines. The result of

this research showed that students have a difficulty in learning chemistry to

understand of buffer solution topic. (1) The students’ learning difficulties on buffer

solution topic was ranged between less difficult until very difficult. (2) The

distribution and level of student learning difficulties in indicators explaining the

definition of buffer solution, analyzing the constituent components of buffer

solution, determining buffer and non-buffer solution, calculating the pH of acid and

base buffer solution, calculating pH of a buffer solution by adding few amount of

acid or base or dilution, and explaining the function of buffer solution in the body of

living creatures, are difficult enough (44,97%), difficult (74,57%), less difficult

(31,66%), difficult enough (43,51%), very difficult (81,82%), and difficult enough

(36,36%), respectively (3) Internal factor that caused learning difficulties is less

understanding toward supporting concepts of buffer solution topics and buffer

solution concept, the lack of student’s ability in mathematics, less learning interest

and motivation toward chemistry. The external factor that caused learning

difficulties is teacher’s teaching method, negative effect from friend at the same age,

and less conducive learning conditions and times.

Keywords : learning difficulties, buffer solution, external factors, internal factors


53

Abstract Topic : Computational Science

IConMNS 190

Rplugin.actuaria: a package graphical user interface open source for actuarial

analysis using R software

N Satyahadewi and H Perdana

Universitas Tanjungpura


Abstract

Actuarial is the science of calculating risk analysis and financial data analysis using

the concept of statistics and mathematics. Here, we introduce a newly developed R-

package for the purposes of actuarial science, named Rplugin.actuaria. The package

is an additional menu which is a reorganized and an extended version of the menu in

R-Commander. We illustrate the usage of the package for calculation life insurance

premiums.

Keywords : actuaria, R commander plug-in, open source



54

Abstract Topic : Computer Science

IConMNS 17

Detection of coffee bean damage in the roasting process based on shape features

analysis

I G A Gunadi1, I P M K Artha

2, I G P Christyaditama

2, G A S Wicaksana

2, and I M

Martina2

1 Departement of Physics and Natural Science teaching -Universitas Pendidikan

Ganesha, 2Magister program of Computer Science - Universitas Pendidikan

Ganesha



[email protected]

Abstract

Many studies raise the issue of analysis on the quality of coffee beans (green beans).

Green beans (coffee) are the term used to indicate coffee beans before roasting. The

importance of analyzing the quality of coffee beans not only in coffee beans but also

in rice seeds. Rice seeds are used as a mixture in the roasting process of coffee.

Analysis of the quality of roasted coffee is very important. In roasted coffee beans

can be damaged and changes to the coffee beans. Some types of damage to coffee

beans include, blackened seeds, partially blackened seeds, browned seeds, broken

seeds, perforated seeds, epidermis seeds, horned skin seeds, too young seeds, spotted

seeds, and dirty seeds. This study focuses on one of the damage factors, namely

broken coffee beans after broken beans. In this study, analysis of roasted coffee

quality was determined by shape analysis. The shape analysis uses elongation

values. there are two categories of classification, the first class of coffee is of good

quality, and the second is coffee with poor grade. Classification is good if the

elongation value is more than 0.85, for other conditions it is classified as bad. The

results of this study have the following accuracy values, at coffee with a

classification of good accuracy of 93.4%, while those at coffee with a bad

classification of accuracy are 78.5%.

Keywords : digital image analysis, damage to coffee beans, shape features






55

IConMNS 25

Expert system to diagnose diseases of mental health with forward chaining and

certainty factor

N K Ariasih and I G A A D Indradewi

STMIK STIKOM Indonesia


Abstract

The latest developments in the medical world use computers to help diagnosis and

treat diseases. This study aims to develop an expert system which can be used to

diagnose mental health problems, especially in the category of depression. User can

diagnose based on the symptoms felt by patients. The knowledge representation

used in this study is the production rule. The inference method used to get

conclusions is using forward chaining the certainty factor method, and the platform

used is a web-based system. After analyzing and applying the Forward Chaining and

calculation of Certainty Factor method into the expert system, the conclusion is that

the Forward Chaining and Certainty Factor methods can solve the problem of

depression psychiatric diagnosis by prioritizing the value of the certainty of users

and experts so that the value is close to certainty from diagnoses that are made to

psychiatric illness depression.

Keywords : expert system, forward chaining, certainty factor, mental health



56

IConMNS 34

Decision support system for selection of outstanding lecturers at Dhyana Pura

University using a combination of analytical hierarchy process methods and

simple additive weighting

P W Rahayu, I G A Gunadi, and I M Candiasa

Magister Program of Computer Science Universitas Pendidikan Ganesha


[email protected]

Abstract

The outstanding lecturer selection at Universitas Dhyana Pura still done manually by

ranking and assessment methods which are still influenced by the viewers' point of

view. Based on these problems, this study aims to propose a Decision Support

System based on the combination of the Analytical Hierarchy Process (AHP)

methods and Simple Additive Weighting (SAW). AHP was chosen because in the

selection process there was no method applied to give a score to each candidate

along with the criteria. Whereas, SAW was chosen because in the process of the

selection, it is required a method to rank the final score which had been given in the

AHP process. Based on the condition that the experts scored more than one

candidate, it is necessary to combine the score of criteria and sub-criteria using the

Geometric Mean Method (GMM) and the Weighted Arithmetic Mean Method

(WAMM). GMM is an assumption if each expert has the same score in building an

opinion, while the WMM is an assumption if each expert has an unequal score. The

results obtained by the university and the previous system were tested using Mean

Average Precision. The results accuracy obtained from the comparison is 60%,

which can be concluded that the DSS is feasible to be applied at Universitas Dhyana

Pura.

Keywords : selection of outstanding lecturers, AHP, SAW, GMM, WAMM




57

IConMNS 53

A novelty public key cryptosystem based on circulant matrix

M Maxrizal1, I G N Y Hartawan

2, and P Janar

3

1STMIK Atma Luhur,

2Universitas Pendidikan Ganesha,

3Universitas PGRI

Yogyakarta


Abstract

Experts believe that public key cryptosystems on non-commutative algebraic

structures are resistant to the attack of quantum algorithms. In recent years, public

key cryptosystems based on Polynomial Symmetrical Decomposition (PSD) on the

non-commutative group have been developed. However, they are vulnerable to

direct attack, linearization equations attack, and overdefined systems of multivariate

polynomial equations attack. This cryptosystem has also been improved by experts.

However, the operation of the proposed PSD Improvement still uses complex

computing and untested. Therefore in this paper, we replace PSD on a non-

commutative group into a commutative matrix group. We chose the circulant matrix

on the key agreement protocol and the key distribution. The results show that the

cryptosystem proposed on the circulant matrix is resistant to direct attack,

linearization equations attack, and overdefined systems of multivariate polynomial

equations attack.

Keywords : commutative matrix group, circulant matrix, public key cryptosystem




58

IConMNS 70

Let’s help with math: a serious game for the 3rd

grade elementary school

students in plane geometry

K A T Raharja and I N Sukajaya



Abstract

Let's Help With Math is a serious game based-learning used as mathematics learning

media in understanding the concept of plane geometry for the 3rd

elementary school.

It is a single player serious game of adventuring genre. The game’s challenges are

distributed into 3 levels of game. The first and second level is regarding basic

characteristics of a quadrilateral is categorized as a rectangle from low and medium

level of difficulty. The third level is about the circumference of rectangle. For the

players who did not get the problems' solution yet, the game displays twice hint

gradually from hidden to unhide hint. The players who solve all problems from

those three levels of challenges is stated as winners, but they who did not and have

submitted wrong solution three times are stated failed (game over). Those players

who are stated as winners are classified mastery in rectangle's subject. We

implemented the 4D model of game development which is practically conducted

only until the third step. The game's prototype has been tested by seven students

from 3rd grade of elementary schools. Five among seven students looked very

enthusiastic during playing the game. They also more interested in learning because

the game raises real life problems associated with the properties and circumference

of a rectangle. We conclude that the delivery of plane geometry subject, especially

the properties and circumference of rectangles through learning media based on the

game "Let's Help With Math" is more interesting than conventional learning.

Keywords : serious game based-learning, plane geometry, rectangle learning media




59

IConMNS 71

Captain math: an educational game for the 5th

grade of elementary school

students in weight-unit conversion

D Mujahidain and I N Sukajaya



Abstract

In the 21st century; the study about educational game was greatly improved. It is due

to that educational game is believed having positive impact toward the advancement

of education. In this research, we developed an educational game for learning

weight-unit conversion for 5th grade of elementary school students. The game was

developed as a single player game of adventuring genre and divided into three levels

of play. Each level follows content semantic of subject: sequence, conversion, and

implementation. The first level contained challenge in the form of sorting weight

unit from the largest (kg) to smallest (mg). For the second level; players are

challenged to determine a value that is similar to a given value from other weight

unit. The last level has the highest difficulty challenge, in which players are

challenged to look for an answer to a problem given as the operation of weight-unit.

This game was developed following 4D principle: define, design, develop, and

disseminate. This game also available in two versions: a computer and a mobile

version. For a mobile version it has been designed in two operating systems:

Android and Windows Phone. The prototype of this game has been tested involving

15 players who were 5th grade of elementary school student. An interesting

interface display in this game makes students especially like this game and it seems

there is discussion among them to complete the challenge. The learning process

looks more optimal through Captain Math.

Keywords : educational game, elementary school students, weight unit conversion




60

IConMNS 74

Story of math: a serious game based-learning for improvement of students

achievement in time unit conversion

P R Sahriana and I N Sukajaya



Abstract

We developed a serious game entitled ″Story of Math″. The game is developed as a

learning media in understanding a subject matter of 3rd

grade of elementary school

students, that is Time Unit Conversion. The development model which is

implemented in developing the game is 4D model (Define, Design, Develop, and

Disseminate). We only conducted the first three among four procedures of the 4D

model. The Story of Math is a single player game of adventuring genre. Challenges

are presented as time unit conversion's problems distributed in three levels.

Problems for the first level involve time unit conversion from hours to minutes,

minutes to seconds, and hours to minutes. For the second, problems involve

conversion from minutes to hours, seconds to minutes, and seconds to hours. For the

last, problems involve addition and subtraction operations for operands from either

similar or different time unit. Feasibility of the game implementation has been tested

through User Acceptance Test involving 5 students of 3rd grade elementary school

students. The results shows that students are very interested and enthusiastic in

playing game. The response was reflected in gestures and expressions of their faces

look so curious. They have no problem or easily understand how to play. They also

understand the subject that is integrated into the game showed through quick

response for the quiz given after playing the game. It infers that the Story of Math

serious game is interesting and potentially help the students to understand the

concept of subject time unit conversion.

Keywords : serious game based-learning, time unit conversion, improvement of

students achievement




61

IConMNS 119

Biodiv checker: mangrove ecological using UAV and artificial intelligence

M A S Adhiwibawa1, A Struck

2, K Prilianti

1, and T Brotosudarmo

1

1 Universitas Ma Chung,

2 Navama



Abstract

Mangrove forests play an important role in coastal areas, it provide a variety of

environmental services including providing shelter and breeding grounds for some

marine organisms such as fish and crabs. Because the important role of mangrove

forests, their coverage needs to be monitored periodically. In general, monitoring the

dynamics of mangroves forest is done visually by observers, but this method is often

difficult to implement due to the condition of mangroves forest that are difficult to

observe. To overcome this problem, manual visual observation can be substituted by

using Unmanned Aerial Vehicle (UAV) Monitoring. The use of UAVs can shorten

the time of observation. The UAV captures the digital image of mangroves forest

from above and the results can be interpreted using the help of artificial intelligence.

In this study, implementation of UAVs and artificial intelligence to observe the

dynamics of the development of mangrove forests on the northern coast of

Probolinggo City from 2016-2018 was proposed. To facilitate the data visualization

process, mangrove forest ecological parameter are displayed in a web-based

geographic information system called “BiodivChecker”. The use of UAVs, artificial

intelligence and “BiodivChecker” information system can facilitate the ecological

observation process of mangroves forest by providing relevant data in the

management of the coastal ecosystem.

Keywords : mangrove, UAV, artificial intelligent





62

IConMNS 138

Use of Meyer wavelet in analyzing 12 lead electrocardiogram images

D Darwan

IAIN Syekh Nurjati Cirebon

[email protected]

Abstract

One of the most important organs of the human body is the heart. So that routine

maintenance and checking of heart conditions is very necessary. Until now the most

common cause of death is caused by heart abnormalities. So that research related to

cardiac abnormalities requires quite serious research. Diagnosis of heart

abnormalities requires precision, so patients can conclude whether the heart has

abnormalities or not. This study analyzes normal heart conditions seen from

Electrocardiogram (ECG) images issued by ECG recording machines. In the pre-

processing stage, the ECG image is scanned and transformed (from time to region).

The transformation results were analyzed using discrete wavelets at the extraction

stage by decomposition of up to ten levels, to find the smallest value mean square

error (MSE). The type of mother wavelet and wavelet order used is Discret Meyer

(dmey). The smallest MSE value from the decomposition results for leads I, II, III,

aVF, V1, V2, V4, V5 and V6 are all at level 5, while the aVR leads (level 7), aVL

(level 8) and V3 (level 10). The results of this study allow for consideration in the

wavelet-based feature extraction stage in future cardiac abnormalities. Hopefully it

can be followed up to model identification of heart abnormalities using wavelets.

Keywords : electrocardiogram, wavelet, discret Meyer


63

Abstract Topic : Environmental Science

IConMNS 07

Reef fishes responses to antifeedant assay of Phyllidiella nigra raw extracts at

Pramuka Island Waters, Kepulauan Seribu, DKI Jakarta

A Setiawan

Universitas Indonesia

[email protected]

Abstract

This study aimed to identify the difference of reef fish responses to the antifeedant

test of Phyllidiella nigra raw extract has been done from 4 May to 10 May 2017 in

Pramuka Island, Kepulauan Seribu, DKI Jakarta and the level of Phyllidiella nigra

raw extract antifeedant effectiveness of reef fish Pramuka Island, Kepulauan Seribu,

DKI Jakarta. Phyllidiella nigra samples were extracted with methanol and yielded a

4.4% extract content. An antifeedant test was performed using a diet containing

Phyllidiella nigra extract and feed without Phyllidiella nigra raw extract as a

control, in the form of 1 cm^3of jelly cube that is resistant to the fishing line. The

feed was then tested on fish in coral reefs within 3 - 4 meters depth and see the

response of reef fish to the raw extract of Phyllidiella nigra and calculated the

amount of eaten feed and not. Chi-square statistic test results at the significance

level (α) 0.01 indicates the presence of food inequality. Based on the explanation

above, the raw extract of Phyllidiella nigra positively has antifeedant activity

against reef fish and there are various responses of reef fish to the raw extract of

Phylidiella nigra.

Keywords : fish response, antifeedant, Phyllidiella nigra, extraction, reef fishes,

Chi-square, Kepulauan Seribu DKI Jakarta

64

IConMNS 09

Exploration of antibiotic producing bacteria in soil in West Bali National Park

N P Ristiati, N P S R Dewi, S Mulyadiharja, and I R D Dagsy




Abstract

Soil is various habitat of microorganisms and macroorganisms. West Bali National

Park has several ecosystems and is divided into several zones, each zone has

different soil characteristics so that various microorganisms exist in the soil. The

objectives of this study were to know (1) the number of colonies and (2) the genera

of antibiotic-producing bacteria from the soil in the jungle zone and cultural history

of West Bali National Park. This research type is descriptive research with

descriptive results of observation number of colony, macroscopic, microscopic,

biochemical test, and activity test to Escherichia coli and Staphylococcus aureus

bacteria. Research result (1) the number of antibiotic-producing colonies is found in

the jungle zone is 4,2 x 108/ ml and cultural religious historical zones of 3,5 x 108 /

ml, (2) genera of them that can produce antibiotic that is Bacillus genera and

Streptomyces.

Keywords : antibiotics, Bacillus, ecosystems, Streptomyces, West Bali National

Park





65

IConMNS 92

Chromophoric dissolved organic matter (CDOM) in spring water: the effect of

precipitation

N K D D Lestari, L C Krismiari, and I G N A Suryaputra



Abstract

Chromophoric dissolved organic matter (CDOM) is an important part of dissolved

organic matter. Although its concentration in groundwater is considerably high,

CDOM study in Bali Island has not been a priority. This research aimed at

identifying the influence of precipitation on the CDOM concentration of

anthropogenic- and natural-dominated spring water. Samples were collected in

Northern Bali Island in two different areas, i.e. in dense populated and rural area.

We used a handheld vacuum pump to filter the spring water through a 0.7 µm GF/F

filter paper. Besides measuring the absorbance for CDOM analysis, we also

measured nitrate, nitrite, ammonium, and phosphate concentration. Results show

that water precipitation affects only CDOM concentration in both spring water,

which indicates the influence of soil in the groundwater.

Keywords : chromophoric dissolved organic matter, CDOM, spring water, Bali

Island




66

IConMNS 93

Water quality management for surface water resources: system dynamics (SD)

approach

H Pradana, E Novita, A Puspitasari, and B Purnomo

University of Jember


[email protected]

Abstract

Abstract. Surface water resources pollution is one of the crucial problems in the

world. This consequence also occurred in Indonesia. The dynamics of watersheds

affect water pollution in the river or surface water resources. The approach to water

quality management in the river must be holistic or comprehensive and sustainable.

System Dynamics (SD) as an approach for described water quality management in

watershed such us social, economic, and environmental aspects. The simulation

represented positive and negative feedback of the overall aspect in SD as input for

water quality management. The focus the researched to compiled system dynamics

for water quality in Bedadung River based on dynamics of Bedadung Watershed.

SD as a method approach used poweshim software 5.0. Input aspect was social

(domestics wastewater), economic (agricultural, livestock, and industry), and

environmental (pollution load capacity of river). The SD simulation described

positive and negative feedback mutual aspects based on causal loop diagram.

Negative feedback in SD was wastewater runoff from domestic, agricultural,

livestock, and industrial. Positive feedback in SD was pollution load capacity. The

water quality management in watershed used SD model as consideration to decision

making support of sustainable river condition by stakeholder and government.

Keywords : system dynmics (SD), water quality management, bedadung watershed,

sustainable





67

IConMNS 180

The study on sediments organic enrichments at marine culture site of

Pegametan Bay, Bali Province

A Nasukha1, R Septory

1, G S Wibawa

1 , K Sugama

2, and K H Runthe

3

1Institute Institute for Mariculture Research and Fisheries Extension,

2Center for

Fisheries Research and 3Development - Ministry of Marine Affairs and Fisheries of

Indonesia, University of Kiel



Abstract

As marine culture industry increases in Indonesia, the need of understanding its

impact to the local aquatic environment becomes greater. The particulate waste

produced from marine farm, such as excess food and feces, will be largely and

directly discharged to the surrounding areas. First implication of this process is

organic enrichment in the seafloor of receiving site and further will slowly degrade

water quality and disturb benthic as well as aquatic ecosystems. This study was

focusing on detecting organic enrichment occurred in Pegametan Bay, North Bali

Indonesia using sediment sample assessment in four operating-selected farms. The

results show that there were accumulated of organic matters in all sampling farms,

clearly indicated with significantly high Particulate Organic Matter (POM) between

75.20±2.57 and 92.97±0.59 %, and low between -217.41±2.74 and -343.57±1.48

mV, visual assessment also documented that generally found in silty and muddy

texture, deep gray to black colorization and having H2S odor. In this case, further

investigations and monitoring efforts are needed in the near future to ensure the best

management programs for sustainable farming and ecosystem both fish farmer and

environmental regulator such as local government.

Keywords : marine culture, organic enrichment, Pegametan bay, sediment

assessment






68

IConMNS 207

Implementation of Tri Hita Karana with socio-cultural ergonomic oriented on

the Kecak Dance performance to improve community health and supporting

cultural tourism in Peliatan Ubud Gianyar

I M Sutajaya and I W S Warpala



Abstract

The development of cultural tourism is an innovative activity carried out by the

community in anticipation of the deterioration of tourism in Bali. The community

empowerment model which is oriented to the concept of socio-cultural ergonomics

combined with Tri Hita Karana's as a local wisdom is believed to be able to support

the development of cultural tourism while at the same time able to nourish the

community. The research objective is to find out the successful implementation of

Tri Hita Karana program with the Socio-Cultural Ergonomic oriented which is

realized in regular Kecak dance performances in overcoming the health conditions

and healthy living habits of the people. This quasi-experimental study with treatment

by subject design involved 32 subjects and selected by simple randomly. The data

obtained were analyzed by paired t test at a significance level of 5%. The results

showed that there was a significant increase in: (a) public awareness of their health

conditions by 31.09%, (b) clean and healthy living behavior by 27.39, and (c) public

awareness of the development of cultural tourism by 21, 65% (p <0.05). The

conclusion is that the implementation of Tri Hita Karana with socio-cultural

ergonomic oriented in the performance of kecak dance, which can improve public

health and support cultural tourism.

Keywords : Health, Socio Cultural Ergonomic, Kecak Dance, Tri Hita Karana



69

Abstract Topic : Fisheries Science

IConMNS 39

Effect of geomembrane and prism greenhouse methods in salt crystal formation

M N T U Sakti1, I P W Widagda

1, K N A Wijaya

1, and G I Setiabudi

2

1BBRBLPP Gondol,

2Universitas Pendidikan Ganesha


[email protected]

Abstract

The application of a method aims to increase the added and selling values of salt

produced by farmers. Salt farmers in Buleleng Regency since 2014 have used a

combination of geomembrane and prism greenhouse methods. The method produces

a unique salt crystal form. This study aims to determine how the effect of the

combination of geomembrane methods and prism greenhouses on the formation of

salt crystals. The method used to obtain data is field studies and in-depth interviews.

The combination method produces several forms of salt crystals such as pyramid,

rock sea salt, coarse sea salt, fleur de salt, fine grain sea salt and flake sea salt. The

special thing of the salt crystal is a pyramid shape. This form has a high economic

value.

Keywords : salt, geomembrane, pris greenhouse, crystal of the salt, pyramid





70

IConMNS 46

The effect of providing different types of liquid organic fertilizer on silkworm

(Tubifex sp) growth

N Martini and G Yudasmara



Abstract

This study aimed to determine the effect of different types of liquid organic fertilizer

on the growth of silkworms, as well as to determine the type of liquid organic

fertilizer (POC) that is best for use in the cultivation of silkworms (Tubifex sp) in a

recirculating culture system. This study used 3 (three) different treatments, namely

media without the use of liquid organic fertilizer (SK), media with the addition of

liquid organic fertilizer (POC) made from chicken blood (SD), and media with the

addition of POC made from fish waste (SL) with a recirculating culture system fed

with fermented tofu waste. The results of the One Way Anova test obtained the

probability value p (0,000) <α (0,05) which showed a significant difference between

means on the yield of Tubifex sp in treatment SK (34.9 g), SD (106.06 g), and SL

(84.87 g). The result of the study showed that media with the addition of POC is

effective in increasing the growth of Tubifex sp when compared with media without

the addition of POC. The best growth results were obtained in the treatment of

culture media with the addition of POC made from chicken blood. Cultivation of

silkworms (Tubifex sp) with the provision of POC from chicken blood and feed in

the form of fermented tofu waste can be used to obtain better growth and

productivity of silkworms.

Keywords : Tubifex sp, liquid organic fertilizer, fermentation, tofu waste, chicken

blood



71

IConMNS 55

Evidence of loss genetic variation in abalone, Haliotis squamata hatchery

G N Permana1, I Rusdi

1, F H Khotimah

1, B Susanto

1, and K Sugama

2

1 Institute of Mariculture Research and Development Gondol Bali,

2 Centre for

Aquaculture Research and Development



Abstract

Genetic improvement of abalone have been done in hatcheries at Institute

Mariculture Research and Development (IMRAD) Gondol Bali. The aim of this

research is to determine the genetic differences of juvenile abalone from hatchery

and offsprings of corresponding wild abalone from Bali and Banten. The samples

were tested by gel electrophoresis. The result showed that a significant change in

allele frequency, a loss of rare alleles, and a reduction in heterozygosity at

phosphoglucomutase (PGM*) locus between wild and hatchery samples. There was

a loss of genetic variation with hatcheri samples of Bali and Banten for the common

wild allele. It is recommended that abalone hatcheries use an effective minimum of

ten males and twenty five females to reduce the risk of losing genetic variation in

spawning event.

Keywords : genetic, abalone, hatcheries, mariculture







72

IConMNS 80

Breaking strength and elongation of pineapple leaf ropes and chitosan

combination for fishing gear material

M Mainnah1, D Diniah

2, B H Iskandar

2 , and M M Jaya

1

1 Jembrana Marine and Fisheries Polytechnic,

2 IPB University


[email protected]

Abstract

Utilization of pineapple leaf fiber is an eco-friendly development step of fishing gear

material. Breaking strength tester is used to determined the material strength of

fishing gear. Two factors of the experiment in this research were chitosan

concentrations 1%, 1,5%, and 2% and soaking time in chitosan during 15, 30 and 45

minutes. The composition of chitosan and the best treatment for pineapple leaf rope

in the preliminary research was continued by finding out about breaking strength

and elongation of its rope. Breaking strength and elongation of pineapple leaf ropes

are the dry one and the soaked one in seawater during 4 days successively. The

samples test which used in every step of each experimentation were consisted of two

experiments that are pineapple leaf ropes with and without chitosan. The best result

came from breaking strength test of pineapple leaf ropes which soaked in chitosan

1% during 45 minutes with breaking strength was 183,7497 kgf/cm2. The average

breaking strength of pineapple leaf ropes with chitosan was stronger than the ones

without chitosan (172,0734 > 152,4089 kgf/cm2). The breaking strength of

pineapple leaf rope without chitosan was decreased (186,8659 kgf/cm2) and the

elongation was increased after soaked in seawater for 4 days, whereas the breaking

strength of ropes with chitosan (269,6212 kgf/cm2) and its elongation was decreased

after soaked for 3 days. It shows that its breaking strength last in seawater soaking

for 3–4 days successively. If more than 4 days, it will start for strength decreasing,

meaning that the pineapple leaf rope will start to damage. The damage which occurs

can be considered that the degradation is already occurring on a leash when the

pineapple leaf rope soaked in seawater. Based on the test results of breaking strength

and elongation that had been done, pineapple leaf rope can be used as the material of

fishing gear. The utilization of pineapple leaf rope with chitosan as a substitution for

the synthetic one is expected to give a good impact on the environment, which is to

reduce the utilization of various synthetic material that needs more time to

decompose in nature.

Keywords : breaking strength, elongation, chitosan, pineapple leaf fibre






73

IConMNS 82

The effect of feed supplement on growth, survival rate and immunity response

of Pacific white shrimp Litopenaeus vannamei

H Haryanti, I G N Permana, F Fahrudin, S B Moria, and A Muzaki

Institute for Mariculture Research and Fisheries Extension



Abstract

The efforts to improve growth, survival rate and immunity response are still

problems issues in shrimp farming. The purpose of this study was to determine the

effect of feed supplements on the growth, survival rate and immunity response in

order to increase phenotypic performance of L.vannamei. Studies using (A)

synthetic nucleotides (0.03 mg/kg of feed), (B) whole cells of Saccharomyces

cereviceae (100 mL/kg feed) and (C) Control ( without feed supplement) is

treatments applied in the culture of shrimp L.vannamei. Feed supplements were

mixed in feed formulated and coated with chitosan, while the control was not added

of feed supplement. The volume of tank used for rearing of shrimp is 5 m3, each

with two replications. The result showed that the survival rate of shrimp were reared

with synthetic nucleotide supplements by 59,29% of whole cell reached of 75,45%

and control was 67,61%.

Total haemocyte of shrimp before challenge test with WSSV ranges of 287.2 to

465.7 x 104 cells/ml and after the challenge test in treatments of synthetic nucleotide

were 303.63 x104sel/ml, whereas in whole cell and control respectively 265 x 104

sel / ml and 254,25 x 104 sel / ml. Immunity response of shrimp. L. vannamei

expressed from ProPO was significantly different from the treatment of feed

supplement use compared the control after challenged with WSSV, IHHNV, IMNV

and TSV.

Keywords : growth rate, survival rate, immunity response, synthetic nucleotide,

whole cell, L.vannamei







74

IConMNS 83

Study of the best dose of organic matter from tiger shrimp pond (Penaeus

monodon) to the quantity and quality of Tetraselmis sp. based on fluorescent

protein expression

A C Nisa1, U Yanuhar

2, M Maftuch

2, and D A S Utami

1

1 Marine and Fisheries Polytechnic of Jembrana,

2 Brawijaya University


[email protected]

Abstract

The aim of this study was to obtain the best dose of organic matter from tiger shrimp

(Penaeus monodon) pond to produce the best cell density, specific growth rate, and

cell quality of Tetraselmis sp. based on fluorescent protein expression. Organic

matter was collected by collecting floating organic matter using a scoop net.

Collected organic matter was then dried under a sun light for a month until dried and

compacted. That organic matter was used as a medium in the culture process of

Tetraselmis sp. This study was done through completely randomized design (CRD)

with four doses of organic matter as treatments including 2, 4, 6, and 8 g/L that got

three replications. The cell quantity of Tetraselmis sp. was analyzed by observing

the cell density and specific growth rate of Tetraselmis sp., while the cell quality of

Tetraselmis sp. was analyzed by observing its quality based on fluorescent protein

expression. The results of this study showed that organic matter at a dose of 8 g/L

resulting the highest cell density and specific growth rate of Tetraselmis sp. On the

other hand, organic matter at a dose of 2 g/L showed more proteins expressed from

Tetraselmis sp. than other doses. It concluded that the highest dose produced the

highest cell quantity of Tetraselmis sp., while the lowest dose produced the best cell

quality of Tetraselmis sp. This study also showed that organic matter from tiger

shrimp pond could be used as an alternative medium to culture Tetraselmis sp.

Keywords : organic matter, shrimp, Tetraselmis sp., fluorescent protein expression






75

IConMNS 85

The using of salt and sodium tripoliphosphate (STPP) for the quality of fish

nugget from cattle fish (Hyposarcus pardalis)

A Mulato1, Rahmatang

2, and S P S D Utari

2

1 SUPM Negeri Bone,

2 Marine and Fisheries Polytechnic of Jembrana


Abstract

Cattle fish (Hyposarpus cardalis) is a non-economic fish contains high nutrition,

however has not been used yet previously. It became a pest in the freshwater, so it

was expected to be new sources of food and increased the level of nutrition. The aim

of research is to find out the best combination between food addictive (Salt : STPP)

to produce the best quality of fish nuggets. The combination of concentration that

used were 0,5 %; 1,0%, 1,5% of Salt and 0,2%; 0,3%; 0,4% of STPP. This research

was begun with “surimi” produced using leaching treatment. The methodology of

research is experimental method through Random Completed Design (RAD). The

result showed that the combination of 1% Salt : 0,4% STPP significantly affected

the surface homogeneity, texture of nuggets, and flavor. However not significantly

affected to colour and aroma of nuggets.

Keywords : cattle fish, Hyposarpus cardalis, nugget, salt, STPP





76

IConMNS 120

Impact of formalin treatment in sea bass (Lates calcarifer) infected with

iridovirus

K Mahardika

Institute Institute for Mariculture Research and Fisheries Extension

[email protected]

Abstract

Sea bass (Lates calcarifer) is one of the fish that has high economic value. However,

cultured of sea bass at North-Bali, Indonesia is still faced with mass mortality

caused by microorganism infections. The purpose of this study was to determine the

effect of formalin treatment on sea bass infected with iridovirus. The fish used in

this study was sick sea bass due to naturally iridovirus infection at the Pathology

Laboratory, the Institute for Mariculture Research and Fisheries Extension, Gondol-

Bali. The sick fish were treated by immersing in 200 ppm formalin in fresh water,

200 ppm formalin in 30 ppt sea water, and immersing 30 ppt of sea water as a

control. Each treatment was immersed for 60 minutes (in plastic tank volume of 100

liters) with strong aeration. Formalin immersion test was carried out in 2 different

time trials. First trial used a 40 fish (TL mean: 10.32 ± 2.34 cm and weight: 8.9 ±

0.83 g), and the second trial used a 30 fish (TL mean: 15.4 ± 3.89 cm and weight:

10.31 ± 0.76 g) per treatment in a 500 liter of fiber tank. Formalin immersion was

done at intervals 2 times a week at the first test, and once every 5 days in the second

test. The results showed that the control group in trial 1 and 2 produced higher fish

mortality (100 and 43.33%) compared to the treatment of 200 ppm formalin in fresh

water (87.5 and 20%) and 200 ppm formalin in seawater (0 and 13.33%).

Histologically, the dead fish showed cell necrosis in the kidney and spleen, while in

the surviving fish showed MMC formation (melano-macrophage center) in all

treatments. These results could be concluded that the immersion of formalin at a

dose of 200 ppm in seawater was able to reduce the dead of sea bass from iridovirus

infection.

Keywords : sea bass, formalin immersion, iridovirus infection


77

IConMNS 122

Community of estuaries fish, Cianjur, West Java based on temporal of lunar

cycles and spatial differences

E Paujiah and A Mas’Ud



Abstract

Information on the abundance of resources in time and space is a prerequisite for the

success of any fishing operation. The present study is an attempt to evaluate the

effect of the lunar cycle and spatial differences on the catch rate of fish community.

Catch rates recorded at different place and time (29.5-d lunar cycles) and was

catched using line gear with mesh size of 0,5”, 1” and 2”. Observations made on

new moon, full moon and during both quarters revealed variations in total catch as

well as individual species catch in gillnetters. The results of the present study

indicated that there is a significant effect of the lunar cycle on the catch rate of fish

community occurring in the estuaries in Cianjur Regency, West Java. In trawl

catches, Mystus gulio and Terapon jarbua were caught in all lunar phase. There are

10 species can found in one of lunar phase. Larger size groups were dominant

during new moon for all species and the differences were significant (p<0.01).

Based on spatial differences, Glossogobius circumspectus, Gerres filamentosus,

Mystus gulio, Liza tade and Terapon jarbua can found at all location. Results

suggest that lunar cycles influence catch rates for some of the estuaries fish species

examined and should be considered as potential environmental covariates for

standardizing nominal CPUE. In addition, this habitat plays an important role in the

maintenance of the ecological functioning of the estuarine-coastal ecosystem.

Keywords : lunar phase, fish community, estuaries, Cianjur, habitat



78

IConMNS 149

Oxygen concentration dynamic in high density culture of abalone Haliotis

squamata

R Septory, Y Asih, and I Rusdi

Research Institute For Mariculture, Indonesia


Abstract

Availability of a sufficient amount of dissolved oxygen in seawater along the culture

of many aquaculture species is an important factor that guaranty the production will

success. The aim of this study was to evaluate the daily dynamic of oxygen level

along 90 days of two systems of abalone culture in three replicate. Six concrete

tanks filled with 3 m3 volume water using flow-through system with 28 to 29 L

-1 sec

was used to two treatments which were a monoculture of abalone and poly-culture

of abalone and hybrid grouper. Each treatment has abalone with length, weight and

sample 35,2 ±5,32 cm, 8.2±4.13 g, n= 2125 respectively, while each treatment of

poly-culture adding by hybrid grouper with length, weight and sample 9.9±0.46 cm,

18.3±2.10 G, n=350 respectively. Three times of 10 hours monitoring of oxygen

level was measured using DO meter YSI Pro20® for each treatment. As a diet,

abalone was given Gracillaria sp. as much as 15 % of body weight while hybrid

grouper feed by commercial pellet 3 -5 % of body weight per day. Water

temperature was monitored continuously using Tidbit® temperature data logger

while ammonia and nitrite concentration was monitored using portable meters of

Hanna Instrument ® in manner colorimetric. Oxygen level was 4.6 to 6.7 mgL-1

for

monoculture of abalone while 2.8 to 6.7 mgL-1

of poly-culture treatment.

Temperature and salinity were stable in 28.5 to 29.8 C and 32 to 33 ppt respectively.

The oxygen level monitored along abalone culture will use as information to

evaluate the culture system and density of species per unit volume to increase the

level of economic feasibility.

Keywords : abalone, Haliotis squamata, dissolved oxygen




79

IConMNS 170

Changes in fish species composition in Pantai Penimbangan Buleleng marine

ecosystems

G I Setiabudi1, G Wiadnyana

2, I P M Mariasa

3, and K T Wirasastra

4


2 POKMASWAS Penimbangan Lestari ,

3 True

Scuba Diving Center,4 NMS Bali


[email protected]

Abstract

Penimbangan Beach since 2016 has carried out management of the marine

ecosystem. The managed ecosystems are coral reefs and seagrasses. The purpose of

this study was to determine the fish composition of coastal ecosystems after 3 years

of management efforts. The data collection method used is census visual,

photography and videography. Data were analyzed using semiquantitative methods.

Data collection is carried out throughout 2016, 2017 and 2018. Fish identified until

2018 are 153 species. The amount is derived from the 39 Family. Consisting of 17

orders including Anguilliformes, Aulopiformes, Callionymiformes,

Carcharhiniformes, Centriscidae, Gobiiformes, Kurtiformes, Lophiiformes,

Myliobatiformes, Orectolobiformes, Perciformes, Pleuronectiformes,

Scombriformes, Scorpaeniformes, Siluriformes, Syngthatiformes, Tetraodontiformes

and Trachiniformes. The dominating order is Perciformes, which is 52.3%.

Increased composition of fish species was identified as 70% in 2018.

Keywords : pantai penimbangan, fish species, visual census, species composition





80

Abstract Topic : Life Science

IConMNS 13

Levels of serum glutamate oxaloacetate transaminase (SGOT) white rate

(Rattus norvegicus) wistar strain after administration Katsuwonus pelamis L.

which has been soaked using the leaf extract of Moringa oleifera L.

N L P M Widiyanti, N P Ristiati, and D W Wahyuni



Abstract

The purpose of this research were: to know levels of Serum Glutamate

Oxosaloacetate Transaminase (SGOT) Rattus norvegicus wistar strain after

administration cakalang (Katsuwonus pelamis L ) which has been soaked using

formalin and various concentrations moringa leaf extract and to analyze the

concentration of moringa leaf extract is best used as a natural preservative of

cakalang. This research design is post test only control group design. Levels of

SGOT were analyzed using anova one way. The results of this study showed that

levels of significance different of SGOT, then H0 rejected and H1 accepted so there

was a difference in SGOT levels of male white rat (Rattus norvegicus) wistar strain

after administration of cakalang which has been soaked using various concentrations

moringa leaf extract. The concentration of moringa leaf extract most effectively used

as a natural preservative of cakalang is the concentration of 25%.

Keywords : moringa leaf extract, Katsuwonus pelamis L, Rattus norvegicus wistar

strain, SGOT levels




81

IConMNS 134

Macronutrients level and number of bacteria in liquid organic fertilizer

combination from banana stems and coconut fibers with MA-11 as bioactivator

I A P Suryanti and I M P A Santiasa



Abstract

The purposes of this research were to determine the maximum macro nutrient

content of C, N, P, K and the number of bacteria from liquid organic fertilizer made

from combination of banana stems, and coconut fibers that is using local

microorganism MA-11 as a bioactivator . The combination includes Combination 1

(k1): 250 grams of banana stems and 250 grams of coconut fiber; Combination 2

(k2): 375 grams of banana stems and 125 grams of coconut fiber; Combination 3

(k3): 125 grams of banana stem and 375 grams of coconut fiber. Each combination

added 1 liter of coconut water, 125 grams of sugar and 125 ml of MOL MA-11

which was fermented for 7 days. The content of C, P and K in liquid organic

fertilizer was determined by using a spectrophotometer, while N levels were

determined using semi micro kjeldahl. The number of bacteria in each combination

is calculated using the total count method. The results showed that total C was found

in combination 1 (K2) of liquid organic fertilizer, namely 14.35%. The maximum

macronutrients N, P and K are found in the combination 3 (K3) of liquid organic

fertilizer, respectively 2.48 % (N), 0.66 % (P) and 2.19 % (K). The highest total

count of bacterial was found in combination 3 (K3) was 8,2 x 107 cfu/ml.

Keywords : banana stems, MA-11, liquid organic fertilizers, coconut fibers



82

IConMNS 205

Screening of Indonesian biodiversity as an antimalarial drug

J E Siregar, N E Pravitasari, and A F M Rizki

Eijkman Institute for Molecular Biology

[email protected]

Abstract

Malaria remains a major health care problem world wide. This disease is caused by

protozoan parasites in genus Plasmodium and transmitted by anopheline mosquitoes.

There are five types of human malaria –Plasmodium falciparum, P. vivax, P.

malariae, P. ovale and P. knowlesi, which differ in the periodicity of the life cycle

as well as in the outcomes of the disease. The greatest obstacle to control malaria is

the widespread of parasite resistance to antimalarial drugs. Mutant parasites resistant

to chloroquine, pyrimethamine, and artemisinin emerged, then spread

geographically, costing millions of lives and necessitating a constant search for

replacement drugs.

Natural product have been the basis of the majority of current anti-malarial drug.

The evidence of quinine and artemisinin, (from Peruvian and Chinese ancestral

treatments, respectively) makes an increasing awareness of the potential use of

natural products, which may lead to the development of much-needed new anti-

parasitic drugs specifically for malaria.

We established an animal model to study the cytoplasmic genetics of the malarial

parasite, by using Atovaquone-resistance Plasmodium berghei. This development

model system were used for the screening some extract of Indonesian biodiversity

for antimalarial activity. Indonesian biodiversity has been used for the treatment of

various diseases including malaria. Some extract Mangrove Plants has been

monitored for their anti-malarial activity by P. berghei ex vivo assay on the

observation of stage development of parasite in 24 hours. Three methanol leaf

extracts of Mangrove Plants showed to have potential anti-malarial activity.

Inhibition assay for P. falciparum dihydroorotate dehydrogenase (PfDHODH) has

been tested to those three extract Mangrove Plants. One extract have potential for

further development of antimalaria. This is an important part of the cultural diversity

and traditions of which Indonesian biodiversity has been an integral part.

Keywords : Malaria Plasmodium berghei, atovaquone, DHODH, anti-malarial drug,

Indonesian biodiversity

84

IConMNS 206

Analysis of Beta Globin Gene Cluster Haplotypes in Beta Thalassemia Mutant

Alleles in Indonesia

I M Nainggolan1, 2

, A R Harahap1, and I Setianingsih

1

1The Eijkman Institute for Molecular Biology, Ministry for Research, Technology

and Higher

Education, Jakarta 10430, Indonesia 2Department of Clinical Pathology, Faculty of

Medicine, Atma Jaya Catholic University of Indonesia, Jakarta

[email protected]

Abstract

Thalassemia is a group of inherited hemoglobin production abnormalities caused by

a decrease or absent globin synthesis. The most common type of thalassemia are

thalassemia and thalassemia. The thalassemia is often caused by single

nucleotide base substitution. The globin gene clusters have a highly polymorphic

regions that may contains several informative SNP for specific mutant alleles.

Several thalassemia allele mutations were analyzed for their single nucleotide

polymorphisms globin gene cluster. Eight single nucleotide polymorphisms in

globin gene cluster formed haplotype. Haplotype can be used as useful biomarkers

for the origin of mutation. The aim of this study is to analyze haplotypes in globin

gene cluster associated with common thalassemia mutations in Indonesia. Beta

globin gene cluster haplotypes were determined from polymorphic sites HincII 5’-,

HindIII-G, HindIII-

A, HincII-, HincII 3’-, HinfI, AvaII, and BamHI. These

polymorphic sites were analyzed by using polymerase chain reaction and restriction

fragment length polymorphism (PCR RFLP) to study haplotypes that correlate with

specific type of thalassemia mutations in Indonesia. The mutant alleles we studied

were IVS1-nt5 (G>C), HbE (Cd 26 GAGGlu

>AAGLys

), IVS1-nt1 (G>T), Cd19

(AACAsn

>AGCSer

), Cd35 (-C), Cd 41-42 (del TTCT), Cd30 (AGGArg

>AGCSer

), Cd15

(TGGTrp

>TAGStop

), Cd 26 (GAGGlu

>TAGStop

), IVS1-nt2, Cd17 (AAG>TAGStop

), Hb

Lepore-Boston-Washington, Cd 8/9 (+G), Poly A (A>G), IVS2-nt654 (C>T) and

Filipino deletion (~45 kb). Those allele mutations were found in five haplotypes in

globin gene cluster: , , ,

and . Five haplotypes in globin gene cluster correlate with

several thalassemia mutations. The result suggest that this approach will be useful

to know the origin and spread of common thalassemia mutation found in Indonesia.

Keywords : thalassemia, mutation, globin gene cluster, haplotype, Indonesia


85

IConMNS 219 The utilization of useful plant species based on socio-cultural of Tenganan

Pegringsingan Bali Aga village, district of Karangasem, Bali

N Wijana and I G A N Setiawan



Abstract The purposes of this research were to know the composition of useful plant species

and their utilization by the community based on socio cultural of Tenganan

Pegringsingan Bali Aga Village. This research was an explorative research. The

location of this research was in Bukit Kangin, Tenganan Pengringsingan Village,

District of Karangasem. There were two kinds of population in this research; they

were the plant vegetation and the community of Tenganan Pegringsingan Village.

The plant vegetation was all of the plant species in the forest area of Bukit Kangin.

Meanwhile, the social culture population was all of the Tenganan Pegringsingan

people. The vegetation samples of this research were all the plant species covered by

the 100 squares with size 20x20 m2. Meanwhile, the social culture samples were:

The Village Officials (5 pax), The Traditional Village Officials (5 pax), The

Community Figures (10 pax), Shamans (2 pax), Offering Artisan (2 pax), and The

General Community Members (20 pax). The total sample were 44 persons. The data

retrieval of this study was using square method. The square placement was done by

using systematic sampling technique [11], [12], [13], [14] [15]. The interview,

observation and questionnaires were used to retrieve socio-cultural data [16] [17].

Furthermore, the data were analized descriptively. The results of this research were:

1) There were 77 plants species in Bukit Kangin, Tenganan Pegringsingan Village,

Sub-District of Manggis, District of Karangasem. Those 77 species on the data were

included into 40 families with total of 2.574 individuals; 2) There were 46 species

out of the 77 plant species in Bukit Kangin classified as useful for religious offerings

(Hindu), medications, food, housing, clothing and industrial needs. For more detail

of their utilization, it can be summarized as follows: for religious offerings (Hindu)

there were 29 plants species (35.80%), for medications there were 18 plants species

(27.70%), for food there were 17 plants species (20.99%), for housing there were 13

plants species (16.05%), for clothing and industrial needs there were 2 plants

species; and 3) Based on the category of the plant organs/parts utilization can be

summarized as follow leaves utilization were 23 plants species (32.40%), stem

utilization were 18 plants species (25.35%), fruits utilization were 22 species

(30.99%), flowers utilization were 4 species (5.64%), roots and seeds utilization

were 2 plant species (2.81%). It could be recommended a further more specific and

in-depth study on the utilization of those plant species is needed to be done.

Keywords : useful plant species, socio-cultural, Bali Aga, Tenganan Pegringsingan



86

Abstract Topic : Marine Science

IConMNS 12

Changes in Fishermen’s Activities after the Construction of Afsluitdijk (Case

Study: Fishermen in Urk, Flevoland Province, The Netherlands)

S Chairunnisa, D Susiloningtyas, T Handayani, and T Siswantining

Universitas Indonesia



Abstract

Afsluitdijk is the biggest seawall which built by the government to overcome the

problem of flooding in the Netherlands. In addition to its benefits as a flood

prevention, Afsluitdijk was considered to give a negative impact on the economic

conditions of fishermen around the North Sea, one of them was fishermen in Urk

(Pleijster and Cees, 2014). The purpose of this study was to analyze changes in

fishing activities after the construction of Afsluitdijk. This research was conducted

in Urk Village, Flevoland Province, The Netherlands in May - June 2019. The

research method used was a case study with a qualitative approach. In-depth

interviews and observations were directed to 10 Urk fishermen who were affected

before and after the construction of Afsluitdijk. The results of the study were

described to explain the impact of Afsluitdijk on fishermen’s activities in Urk. The

results showed that there were a change in aquatic environment, fisheries

production, fishing area and occupation after the construction of Afsluitdijk. The

conclusion of this study was Afsluitdijk changed the pattern of fishing activities and

the economic condition of fishermen in Urk Village.

Keywords : seawall, Afsluitdijk, environment, fishermen, Urk





87

IConMNS 14

Impact of geomembrane application on increasing the capacity of salt

production by local communities: case study in Buleleng Regency

M N T U Sakti1, I P W Widagda

1, G I Setiabudi

2, and K N A Wijaya

1

1BBRBLPP Gondol,



[email protected]

Abstract

Buleleng Regency is one of the centers of salt production by local community. The

production method used still depends on environmental conditions. Salt production

capacity in Buleleng Regency is equal to 53,44 tones/ha/year. The amount of

production is lower than the national production capacity of 100-120 tones/ha/year.

The amount of production is produced from the maduris and clay filtration methods.

Geomembrane is a technology of salt production using a waterproof, safe and

environmentally friendly plastic coating. The purpose of this study was to determine

the effectiveness of the use of geomembrane in increasing salt production by local

community. Field study methods and in-depth interviews used as data collection.

This study shown that there are differences in production capacity between using or

not geomembrane technology. The average salt production using geomembrane is

109,18 tones/ha/year, whereas without using is 53,44 tones/ha/years. It was

concluded that salt production capacity increased 200% if using geomembrane

technology.

Keywords : salt, geomembrane, production capacity, technology





88

IConMNS 50

Existing conditions of coral reefs in Labuhan Pandan Waters Eastern Lombok,

post Lombok 7.0 magnitude earthquake

N M Satyawan, N T Atriningrum

45 Mataram University


Abstract

Coral reef ecosystems in East Lombok Regency, in addition to facing pressure from

fishing activities that are not environmentally friendly and high tourism activities

must also face the threat of natural damage. One of the threats that occurs naturally

at this time is earthquake. Earthquake is a physical factor that occurring several

weeks ago close to that location. A very close epicenter of the earthquake maybe not

only cause of serious damage on local community buildings but also to hard

structures under water such as coral reefs. Monitoring the condition of coral reefs

were expected to provide a natural picture of the impact by earthquakes.

Observations were made on 5 stations: Gili Bidara (BDR_01), Gili Kondo

(KND_01), Gili Petagan 1 (PTG_01), Gili Petagan 2 (PTG_02) and Gili Petagan 3

(PTG_03). The retrieval of coral reef data was carried out using the Underwater

Photo Transect (UPT) method and then processed by CPCe software. The results of

data processing showed that coral reef cover at Labuhan Pandan water East Lombok

ranged from 34.53% - 72.40% (Fair - Good). The highest live coral cover was found

at KND_01 station (72.40%), followed by PTG_01 (65.40%), BDR_01 station

(47.67%), PTG_03 station (40.60%), and PTG_02 (34.53). %). Based on the

observations of underwater conditions, large Foliose corals which collapsed possibly

caused by Lombok 7.0 magnitude earthquake.

Keywords : existing conditions, coral reefs, Lombok earthquake



89

IConMNS 95

Electrical stimulation in the ornamental coral cultivation

G A Yudasmara, I N Selamat, and I N Sukarta



[email protected]

Abstract

Ornamental coral cultivation has now become the most promising cultivation

business. In addition to the condition of Indonesian waters which are very

supporting for ornamental coral business, there is also a demand for this commodity

overseas which keeps on rising every year. However, behind this prospect, the major

constraint in the ornamental coral cultivation is the problem of the relative slow rate

of coral’s growth. The coral’s slow growth rate causes the harvesting period to be

more than one year so that it has a strong effect on the meeting of the ornamental

coral market demand. The main purpose of this study was to use the electric

stimulation method which was designed to increase the ornamental coral’s

performance to an optimal level. Hence, two anode materials, i.e., Nickel (Ni) and

Aluminum (Al) with different electric currents (3 Volts, 5 Volts, 7 Volts, and 9

Volts) which were connected to the ornamental coral cultivation container. On the

basis of the study, two anodes (aluminum anode and nickel anode) shows different

responses. The aluminum anode had a stronger effect on the ornamental coral’s

growth rate (P<1) than the nickel anode. The use of the electric stimulation was

relatively more effective in accelerating the coral’s growth than when no electric

stimulation was used in cultivating ornamental corals.

Keywords : electric stimulation, growth rate, cultivation, ornamental coral





90

IConMNS 118

Pigment-producing bacteria isolated from kondang merak beach, Malang, East

Java

E Setiyono and T H P Brotosudarmo

Universitas Ma Chung


Abstract

Twenty marine pigmented bacteria were newly isolated from Kondang Merak

Beach, Malang, East Java. Among them, four pigmented marine bacterium, two red

and two yellow have been successfully identified by analysis of 16S rRNA and the

pigment was characterized by reverse phase-high performance liquid

chromatography (RP-HPLC) coupled with electrospray ionization mass

spectrometry (ESI-MS/MS). Two red bacteria, strains of SW1 and GC3 have 99%

similarity to Pseudoalteromonas rubra strain ATCC 29570. Whereas the yellow,

strains of SW4 and CC1 have 99% similarity to Pseudoalteromonas peptidolytica

strain NBRC 101021 and Seonamhaeicola algicola strain Gy8, respectively. Strain

SW1 and SW4 were isolated from seawaters. Otherwise strain GC3 and CC1 were

endophytic bacterium isolated from seaweed Gracilaria corticarta and Chondrus

crispus. We found that strain SW1 and GC3 produce cycloprodigiosin and

prodigiosins pigment. Otherwise, strain CC1 synthesized carotenoids pigment. For

strain SW4, produce tambjamine, the pigment which is not commonly found in

bacteria. Thus, our isolated bacteria are promising source for natural pigment.

Keywords : Pseudoalteromona, Seonamhaeicola, prodigiosins, carotenoid,

tambjamine



91

IConMNS 173

Conflicting or synergistic interaction between tourism and marine protected

areas in Lembongan Island

D Prasetia1, S Supriharyono

2, L Sy’Rani

2, and S Anggoro

2

1Universitas Pendidikan Ganesha,

2Universitas Diponegoro


[email protected]

Abstract

Lembongan Island designated as marine protected areas with the Decree of the

Minister of Marine Affairs and Fisheries of the Republic of Indonesia Number 24

concerning the Nusa Penida Marine Conservation Area of Klungkung Regency in

the Province of Bali in 2014. The conservation area is utilized for marine tourism,

sustainable fishery, environmentally-friendly aquaculture, social economics research

and development, and other sustainable marine resources utilization. Lembongan

Island has coral reefs, mangrove forests, white sand, and beaches are a major

attraction for tourists. An increase in the number of tourist visits has a direct or

indirect impact on coral reef ecosystems. This study aims to determine the

relationship between tourism activities and coral reef ecosystems. the study was

conducted on Lembongan Island from 2015 to 2018. The study used the manta tow

survey method, line intercept transect, questionnaires, interviews and analyzed using

SWOT. Research shows that tourism activities have the effect of reducing the

quantity and quality of coral reef ecosystems. Co-management of coral reef

management by involving all stakeholders can minimize the decline in the quantity

and quality of coral reef ecosystems.

Keywords : Lembongan Island coral reef ecosystem, tourism activities, marine

protected areas, co-management





92

IConMNS 199

The study about development model of tourism awareness coastal village as

strategy in marine tourism build in Buleleng Regency Province of Bali

I B Jelantik


[email protected]

Abstract

Related with effort to make a coastal communities which have awareness in tourism,

then some specific purpose which will to reach through this research are ; 1)

presence a model of developing coastal village which have awareness in tourism

which can support marine tourism development in Buleleng ; 2) presence formula of

application strategy a model of development a coastal peoples which have

awareness in tourism which have effectiveness in supporting marine tourism in

Buleleng. Model and strategy for development of coastal village which have tourism

awareness can reach through development study which do during three years

continuously which take places in 15 coastal villages in Buleleng. Methodologically,

the development study involve some action steps that are problem and potency

identification, data collecting, model design making, validation of model design,

small scale model design try out, first model design revision, large scale model

design try out, second model design revision, final model fixation. Data collecting in

this research have done by observation, interview, questioner, and document

analysis. Data analysis have done by quantitative and qualitative descriptive

approach which completed with table and graphic performance. Results of this

research involve two main product its either ; 1) some data / information which used

as base in constructing model design ; 2) model design of development of coastal

village which have tourism awareness. Some data / information which have

collected are ; a) Buleleng have some marine tourism object that are coral reef,

ornamental fishes, mangrove forest, dolphin communities, clean sand and marine

water, friendly wave and current, and coastal communities culture ; b) coastal

peoples in Buleleng have low level knowledge about marine tourism ; c) many

coastal peoples interest have no synergies with marine tourism interest ; d) investor

ability in empowering of local peoples is limited ; e) investor ability in developing

their corporation ; f) local government cannot yet fully educate coastal peoples in

tourism knowledge ; g) local government cannot yet fully stimulate villages tourism

; h) local government cannot yet fully regulate villages tourism ; i) only 7.2 percent

of coastal peoples have been worked in tourism sector ; j) only 54.32 percent of

coastal peoples feel obtained benefit from tourism sector in their villages ; k)

awareness level of coastal peoples in importance of tourism sector in villages is in


93

moderate level ; l) capability and capacity of coastal peoples to work in tourism

sector is in low categories. While, the model design about development of tourism

awareness coastal villages which have been produced is model design that contain

six strategies, there are ; 1) identifying of tourism object and their economic value ;

2) capacity development of villages tourism object ; 3) coastal peoples literation in

tourism sector ; 4) economic value development of villages tourism object ; 5)

access expansion of coastal peoples to economic activities of marine tourism ; 6)

regulation and protection of villages tourism by local local and central government.

Keywords : model, coastal villages, tourism awareness

94

IConMNS 208

The health status of mangrove ecosystem and fisheries potential of Demta-

Jayapura Bay Papua

J D Kalor, E Indrayani, and M N R Akobiarek

Universitas Cendrawasih

[email protected]

Abstract

This research was conducted to determine the health status of mangrove ecosystems

and the potential of fisheries resources in the waters of Demta Bay, Jayapura Papua.

Data was collected in June 2018 and June 2019. Using line transects and sample

plots in intertidal areas of mangrove ecosystem. There were 3 research stations with

3 transects/station so in total there were 9 transects and 28 fish-catching attempts.

Mangrove data collection for tree level at 3 stations used 50m transects with 3 plots

in 10m x 10m size. Result showed that water parameters are in accordance with

water quality standards, the mangrove ecosystem density is very high about 3089.6-

3593.8 individuals/ha, with 30 species of fish and an abundance of 5206.6

individuals /m³, with an average of 1735.6 individuals/m. The conclusion is the

mangrove ecosystem is health and positively correlated with high abundance of

mangrove fisheries.

Keywords : health analysis, mangrove ecosystem, fisheries potential, Demta Bay

Papua


95

IConMNS 216

The survival rate of abalone Haliotis squamata cultured on sea ranching

method in two different types of waters

I Rusdi, Y N Asih, S Sudewi, I G N Permana, and R Septory

Institute for Mariculture Research and Fisheries Extension, Gondol-Bali, Indonesia



Abstract

Abalone Haliotis squamata seed production technology has been successfully

carried out, but mass production of abalone has not attracted farmers yet. The time

period which more than a year in abalone culture to achieve the market size has an

impact on high operational costs that not suitable for farmer. Therefore, one

alternative system that can be used in abalone production in low-cost culture was sea

ranching method. This study was aim to know the survival rate of abalone culture in

two different waters. Pantai Penimbangan, Buleleng Regency, Bali Province and

Pantai Sepanjang, Gunungkidul, Daerah Istimewa Yogyakarta Province water were

selected to be used for sea ranching. Two groups of abalone with size (for each

group n= 5000) 10-25 mm and more than 30 mm were used in this study. Abalon

was sampled by diving in Pantai Penimbangan and field search in Pantai Sepanjang

every 2 month. We found that abalone survival rate in Pantai Sepanjang was higher

compared to Pantai Penimbangan due to suitability of habitat, availability of feed

and no predatory animals. The low survival rate of abalone in Pantai Penimbangan

due to prey on carnivorous fish. It is recommended in abalone sea ranching activities

to consider some aspects such as habitat suitability, feed availability and predatory

aspects.

Keywords : abalone, Haliotis squamata, sea ranching






96

IConMNS 217

Differences of characteristics and growth rate of seagrape seeds (Caulerpa

lentillifera) from Madura, Situbondo and Bali

K L Antara, G I Setiabudi, and I N D Prasetya


[email protected]

Abstract

The purpose of this study was to determine differences in the characteristics and

growth of sea grape seeds from different source which is Situbondo, Kangean Island

and Gerokgak

This study was conducted using experimental design. This research involved with

two phases. First, includes observation of morphology of the seeds from the

Situbondo, Kangean Island and Gerokgak. Second, includes the observation of the

effect different source of seeds on the growth of Sea grape. Data was analyzed using

ANOVA.

Phase 1 showed that different source of seeds giving some morphological

differences. Seeds from Madura have the greatest number of ramili (21.4 ± 1.9 pulp /

cm) and the largest diameter of stolons (1.44 ± 0.29 mm) compared to other seed.

Seedlings from Situbondo had the lowest number of assimilators (14.7 ± 2.26 pulp /

cm) and the smallest stolon diameter (0.94 ± 0.29 mm).

Phase 2 research showed the treatment of seeds sources give significant (P <0.05)

effect on Sea Grapes growth rate. Seeds from Bali gives the highest growth rate, the

highest proportion of assimilators and the proportion of worth selling assimilators.

Seedling treatment from Situbondo gives the lowest weight, the lowest proportion of

assimilators and the proportion of worth selling assimilators.

Keywords : seagrape, seeds, morfology, growth rate



97

Abstract Topic : Mathematics

IConMNS 15

Contraction coefficient of flow through a sluice gate

L Wiryanto

Institut Teknologi Bandung

[email protected]

Abstract

Contraction coefficient on a sluice gate is defined as the ratio between the fluid

depth at downstream and the height of the gate. This number is often used in

predicting the fluid depth, when we construct a sluice gate, how height of the gate

should be built to get the depth of the downsteam as we expect. Analytical work has

been studied to determine that number, and it is π/(2+π). However, in this paper the

number is calculated based on model of potential function for the fluid flow, to

construct an integral equation. When it is solved, the uniform depth can be obtained

and confirm to that number, i.e. 0.611.

Keywords : contraction coefficient, sluice gate, potential function, zero gravity

98

IConMNS 16

The application of fuzzy system to predict math anxiety using math self-efficacy

and attitudes data

H P Susanto, T Sutarti, A S Hafidah

STKIP PGRI Pacitan


Abstract

The fuzzy theory has been widely used for realistic powers of reasoning in math

education and human psychology. Over the past years, this research finds the

momentum, disapproving of the preceding researches. In this case, the fuzzy rules

are the main processor of a fuzzy system. Fuzzy rules can be determined using

information from experts in the variables being observed or utilizing the rule

selection method from Wang or Abadi. In Wang and Abadi method rule selection,

each input or pair of inputs can only have one output. Notwithstanding the above,

this article is contrariwise to the rule selection method, that is each input or pair of

inputs may have more than one because the observed variable is the condition of

human psychology; in this case is self-efficacy and positive attitudes towards

mathematics as inputs and used to predict the mathematical anxiety. We found that

the fuzzy model by virtue of the rules selected by the Wang method is not better

than the fuzzy model whose fuzzy rules are formed using the proposed method.

Furthermore, the results of the t-test reinforce that Wang and regression methods

have a different predictive result average with the anxiety original data. Conversely,

the fuzzy models with the proposed rules from the researchers provide the prediction

result average being equal to the average of original data.

Keywords : fuzzy system, fuzzy rules, math anxiety, self-efficacy, attitudes.



99

IConMNS 21

Etnomathematics exploration, a study from momongan (dice) games

I M A Purwadi and I G P Suharta



Abstract

This ethnomathematics exploration research was aimed at determining mathematical

ideas and concepts that can be found in the momongan (dice) games. This

qualitative research used an ethnographic approach using human instruments for

describing mathematical ideas and concepts that contained in the momongan game.

The research data obtained through observation activities, ethnographic records, and

interviews with a dealer and 3 momongan players who act as research subjects. The

mathematical concepts that found in the momongan game included the concept of

integer operations (addition, subtraction, multiplication, and division), social

arithmetic, and probability.

Keywords : ethnomathematics, momongan, integer operations, social arithmetic,

probalility



100

IConMNS 24

On the Ramsey number for cycle with respect to multiple copies of wheel on

five vertices

I W Sudarsana

Tadulako University

[email protected]

Abstract

For graphs G and H, the Ramsey number R(G,H) is the minimum n such that in

every coloring of the edges of the complete graph Kn with two colors, say red and

blue, there is a red copy of G or a blue copy of H. In this paper, we show that the

Ramsey number R(Cn,tW4) = 2n + t - 2 for integer t ≥ 1 and n ≥ 15t2 - 4t + 2.

Furthermore, this result provides the determination of Ramsey number R(G,tW4)

when G is a set of disjoint cycles. Determining Ramsey number R(Cn,tWm) for any

integers t ≥ 1 and m ≥ 4 is a quite hard problem and so to conclude this paper, we

present an open problem to work on: For any integers t ≥ 1 and m ≥ 4, there exists

n_0=f(t,m) such that cycle Cn is tWm--good for any n ≥ n0.

Keywords : ramsey number, coloring, cycle, multiple copies of wheel


101

IConMNS 28

Quantitative approach to study the role of families and school

environments on juvenile delinquency in Denpasar City

I P E N Kencana, T Tastrawati, and K Jayanegara

Department of Mathematics - Udayana University


Abstract

Adolescence is a transition period from children to adults which is characterized by

(a) the existence of an extension of the self; (b) the existence of self objectification;

and (c) the growth of philosophy of life. In the transition process, a teenager will

experience a personality formation that occurs not in a simple way and has a potency

for self-conflict. The existence of incompatibility between the three adolescent

characteristics with the values or norms that are generally acceptable in the

community has the potential to cause 'emotional outburst' for the youth, which if not

handled properly by the teenager or by parents and the surrounding environment,

potentially leading to acts of irregularities, commonly referred to as juvenile

delinquency. This essay is aimed to study the influence of the socio-economic of

family and school environment on juvenile delinquency. A hundred and fifty senior

high school students at Denpasar, the capital of Bali Province, are randomly chosen

as the respondents and were asked to fulfil the self-regulated questionnaire.

Applying variance-based structural equation modelling, we found the socio-

economic factor has bigger effect on juvenile delinquency than the influence from

school environment.

Keywords : juvenile delinquency, quantitative analysis, structural model




102

IConMNS 29

Forecasting farmer exchange rate in bali province using seasonal

autoregressive integrated moving average (SARIMA) method

N M D Pratiwi, S M U Agustini, W W Sari, and E N Kencana

Department of Mathematics Udayana University



Abstract

Farmer's exchange rate (FER) is a proxy indicator to see the farmers purchasing rate

and shows the term of trade between agricultural products and services sold and the

goods needed by farmers in producing and consuming households. FER obtained by

comparing the Farmer Received Price Index with the Farmer Paid Price Index which

be expressed as a percentages. The purpose of this study is to predict FER of Bali

Province from May 2019 to December 2019 and to count level of purchasing power

of the farmers. The monthly data of FER from January 2010 to April 2019 were

used to build a family of seasonal ARIMA. Four models i.e. SARIMA(0,1,3),

SARIMA(3,1,0), SARIMA(4,1,0), and SARIMA(1,1,1) with seasonal factor

(0,1,1)12 were tested. Noting AIC value for SARIMA(0,1,3) as much as 326.94 is

the lowest than we concluded SARIMA(0,1,3) is the best model to predict the FER

of Bali Province. Our research concluded the farmer’s income increases more than

his expenditure.

Keywords : Balinese farmers, exchange rate, seasonal ARIMA





103

IConMNS 30

The prediction of inflation rate in Denpasar City using artificial neural

network by considering foodstuffs prices

I K R Wiranata, N K E Sapitri, and E N Kencana



Abstract

Inflation is a phenomenon of price increases that are general and continuous on one

item which can extends to most other item types. Foodstuff’s prices can affected by

inflation. It is necessary to predict inflation rate so the people can anticipate the

increases of foodstuff’s prices. The significance between each of 5 types of

foodstuff that found on “Pusat Informasi Harga Pangan Strategis Nasional

Indonesia” and inflation rate in Denpasar were checked by ANOVA. The result

showed among 5 checked foodstuffs i.e. rice, red onion, beef, chicken, and cayenne

pepper, only the last has significance effect on inflation in Denpasar City. Therefore,

this study uses cayenne pepper prices data in Denpasar City from July 2016 until

June 2019 to predict inflation rate on June 2019. The inflation data are obtained

from “Badan Pusat Statistik Provinsi Bali”. Inflation rate in Denpasar City will be

predicted using artificial neural networks that are processed by Jupyterlab 0.31.5.

After testing the architecture with hidden unit size from 1 to 15, the 1-12-1

architecture chosen as best architecture for predicting inflation rate. The predicted

inflation rate in June 2019 is 0.1626100486. So, this study has contributed to

predicting the latest inflation rate in Denpasar City.

Keywords : foodstuffs, inflation, prediction




104

IConMNS 31

Does the gold jewellery price affect the fashion industry? An ANN approach

P A Gunawan, N Indrianto, and E N Kencana



Abstract

The development of trend fashion in Indonesia are influenced by fashion designers,

culture, as well as gold jewellery price. The use of gold jewellery is very intensive in

the fashion. The gold jewellery price can be influenced by the gold price. In

addition, the gold price also can be influenced by inflation and exchange rate. The

forecasting of the gold jewellery price is intended to enable the fashioner to buy gold

jewellery at prices that are suitable for their fashion needs. In this study, the

forecasting uses the artificial neural network (ANN) model by trying all possible

combination of 3 input including inflation, exchange rate, and gold jewellery price.

The result of this study found that the combination of A_6 with the architecture of 2

neurons in the input layer that represents the exchange rate and gold jewellery price

in current month, 5 neurons in the hidden layer, and 1 neuron in the output layer that

represents the gold jewellery price, is the best model to predict the next month gold

jewellery price. The obtained model has an average MSE equals to 0.368 per cent

and it has a low level of overfitting, so the model can be classified quite good in

forecasting the gold jewellery price.

Keywords : fashion, forecasting, gold jewellery




105

IConMNS 49

Structural model of internal factors that affecting tourism business

performance in Jembrana Regency of Bali

G K Gandhiadi

Department of Mathematics Udayana University

[email protected]

Abstract

The tourism industry sector in Jembarana Regency, Bali is currently still

underdeveloped and its contribution to the Jembrana Regional Budget is still very

minimal. Indeed, accessibility to tourist destinations in Jembrana is often an obstacle

for tourists, but internal conditions such as the influence of social capital and the

role of government to create an entrepreneurial culture need to be studied in

improving tourism business performance in Jembrana Regency, Bali. Through the

capacity of social capital and the existence of a positive government role will

encourage the creation of a modern entrepreneurial culture for tourism

entrepreneurs. It is expected that there will be an increase in the performance of

tourism businesses in Jembrana Regency.

Analysis of the influence of social capital and the role of government through

entrepreneurial orientation on the performance of tourism businesses in Jembrana

Regency, requires a comprehensive study and framework. One modeling method

that involves social variables (latent variables) is Structural Equation Modeling

(SEM). Result of the study is expected to be able to provide an overview in

developing development, coaching and training strategies for tourism businesses in

Jembrana Regency, Bali.

Based on a survey and structured interviews on 75 tourism industry entrepreneurs in

Jembrana Regency, Bali, data analysis techniques were used using SEM-PLS with

the help of Smart PLS 3.0 software. The results obtained from the condition of

tourism businesses in Jembrana Regency are: (1) directly social capital and

government roles have a positive and significant influence on entrepreneurial

orientation of business people, (2) directly social capital, the role of government and

entrepreneurial orientation have a positive and significant effect on tourism business

performance, but only insignificant social capital, (3) indirectly social capital has a

positive and significant effect on business performance that is fully mediated by

entrepreneurial orientation, and (4) indirectly the role of government has a positive

and significant impact on business performance that is fully mediated by

entrepreneurial orientation.

106

Keywords : entrepreneurial orientation, role of government, social capital, tourism

business performance

107

IConMNS 72

A lower bound for irregularity strength of the complete graph of power two

vertices

R Savitri and I N Suparta



Abstract

Let G(V,E) be a graph with vertex set V(G) and edge set E(G). A vertex k labeling

kGV ,...,3,2,1: is called k-labeling for some positive integer k. The weight

of an edge xy in E(G), denoted by xyw , is the sum of the labels of two vertices x

and y which are incident with edge xy or yxxyw . If

xywuvw for any distinct edges uv and xy in E(G), we call as an edge

irregular k-labeling. The minimum k for which the graph G has an edge irregular k-

labeling is called the edge irregularity strength of G, and is denoted by es(G). In this

talk, we introduce a lower bound for nKes where nK is the complete graph of

mn 2 vertices for some positive integer 2m . For these complete graph nK , we

show that

2

3GE

nKes . This improves the lower bound introduced by

Ahmad, Gupta, and Simanjuntak in [1], stating that

2

1GE

nKes .

Keywords : edge irregularity strength, k-labeling, complete graph




108

IConMNS 115

Fuzzy logic in the navigation of line follower robot

W Choirijah and S Sugiyarto

Universitas Ahmad Dahlan


Abstract

Fuzzy controllers are widely used because the control design is relatively easy,

flexible and efficient compared to conventional controllers. The purpose of this

research is to compare the results between the triangular and gbell fuzzifier method

to determine which system is more accure to use. This research transform the fuzzy

logic controls on the line follower robot from the PID (Proportional-Integral-

Derivative) machine that has been installed in the robot microcontroller to control

the movement of the robot. The research method used is triangular fuzzifier and

gbell with the largest maximum defuzzification method. The input variables needed

include the distance, angle and speed variables. The three entries are then processed

by the fuzzy logic controller to obtain the output value in the form of the robot time

moves. The error in the triangular fuzzifier is smaller than the gbell so that the

triangular fuzzifier is more accurate than the use of gbell fuzzifier on the system.

Keywords : fuzzy logic controls, triangular fuzzifier, gbel fuzzifier, the largest of

maximum defuzzification, error



109

IConMNS 116

Dynamical behavior of leukemic cells with chemotherapy in acute myeloid

leukemia

Y Adi and J Purwadi



Abstract

In this paper, we consider a mathematical model for the study of the interaction

between leukemia cells and chemotherapeutic drug in Acute Myeloid Leukemia

(AML). In our model, there are three compartments, namely, leukemia-initiating

cells, leukemics blast, and chemotherapeutic drug. Using a stability theory of

differential equation, we analyze the existence and stability of the system at various

equilibrium points. Furthermore, we discuss the effect of leukemia treatment by

varying the values of relevant parameters. We also provide numerical simulations to

illustrate the theoretical results.

Keywords : leukemic cell, mathematical model, stability analysis



110

IConMNS 121

Arimax model in forecasting stock price

I G Y N Hartawan, I M Suarsana, G Suweken, S Sariyasa, P K Dewi, and N

Budayana




Abstract

The purpose of this research is to find out model of stock price and forecast its price.

The data of this research used historical data of PT Bank Rakyat Indonesia (persero)

Tbk. Arimax model is used to model stock price because in this model we were

involving rate interest as independent variable. The data was analyzed by the

following steps: At first, Identification model was done by plotting data, 2).

Parameter estimation and its significant test, 3). Diagnostic checking, 4). Model

evaluation by using Akaike’s Information Criterion (AIC). Based on those model the

forecasting was done to predict the stock price of PT Bank Rakyat Indonesia

(persero) Tbk.

Keywords : stock price, rate interest, Arimax model, Akaike’s Information

Criterion (AIC)







111

IConMNS 128

Parameters estimation of Rayleigh distribution in survival analysis on type II

censored data using the Bayesian method

E Elviana and J Purwadi



Abstract

This research aims to determine the estimation of Rayleigh's distribution parameters

on the data survival analysis of type II of tuberculosis patients. The method used in

this research is the Bayesian method to perform estimate parameters. The process

estimation parameter using the Bayesian method requires information from the

likelihood function and the prior distribution. The prior distribution used was the

prior distribution of Jeffreys. In this study, estimates of Rayleigh's distribution

parameters were applied in the survival analysis data of tuberculosis sufferers.

Keywords : parameter estimation, Rayleigh distribution, survival analysis type II

censored, Bayesian method



112

IConMNS 131

Determining attribute weights in fuzzy multi-attribute decision making

(FMADM) using technique for order preference to ideal solution (TOPSIS)

N Irsalinda and N Wahyuni



Abstract

This study aims to compare the methods in determining attribute weights in Fuzzy

Multi-Attribute Decision Making (FMADM). The methods are pairwise comparison

method and Entropy method that applied in ranking the level of Indonesian people's

welfare. The object of this research are indicators that influence the level of

community welfare, such as proper nutrition data for toddlers, education levels, and

income of the Indonesian people in 2017. The FMADM ranking method that used in

this research is the Technique for Order Preference to Ideal Solution (TOPSIS)

method with S-fuzzy curve growth function. The results of this study show that the

Entropy weighting method is better than the Pairwise Comparison method. This is

because the Entropy method uses a subjective and objective approach to produce

attribute weights based on the characteristics of the data. Whereas the Pairwise

Comparison method uses a personal approach, where the weight comes from the

decision-maker.

Keywords : entropy method, FMADM, growth S-curve fuzzy membership function,

TOPSIS



113

IConMNS 145

Propositional proofing techniques application in algebraic structure research

M A Misri

IAIN Syekh Nurjati Cirebon

[email protected]

Abstract

This paper investigates proofing techniques which is used in algebraic structure

research and how to apply those techniques. This paper also investigates the

reasoning behind the application of the techniques and its effects. The data was

collected by reviewing some algebraic structure textbooks used recently. Books

reviewed were domestic and foreign books. The results of the review process were

noted and documented, and then finally transcribed and coded. The review process

of each book was carried out twice. The data obtained was then triangulated, to get

the valid data, and eventually used for further analytical purposes. The results

obtained show that not all the proofing techniques were used in the proofing process

in the algebraic structure research. They tended to use the same technique in every

proofing activity. This might be due to mastery of proofing techniques, preferences

for certain proofing techniques, lack of information about the development of

various proofing techniques. The resulting impact can be identified from the steps of

proofing, meanwhile if it is conducted using another technique, it can reduce the

steps, is more acceptable also comprehensible.

Keywords : proposition, proofing techniques, algebraic structure


114

IConMNS 157

Graceful labeling for variation of chain graph

I N Budayana, I N Suparta, I G N Y Hartawan, and P L Wahyuni




Abstract

A graceful labeling of graph is a injection from to the set

such that the induced function from to the set , which is defined

by the difference of its incident vertices labels, is a bijection. Variation of chain

graph is a graph obtain by connect the center of with one

end of the chain and the center of with the other end. In this paper, we

have given a graceful labeling for the graph ,where and

is positive integers.

Keywords : graceful labeling, chain graph, star graph





115

IConMNS 177

Expected-based VaR forecasts and its assessment of accuracy

J Seleky and K Syuhada

Institut Teknologi Bandung


Abstract

Vale-at-Risk (VaR) forecast remains an important risk measure for financial and

insurance industries. The forecast provides an indicator for preparing capital

allocation as well as for avoiding worst risk. Calculating VaR forecast is basically

carried out by using the inverse of distribution function at a certain level of

confidence. In this paper, we do forecasting VaR by assuming that such inverse is

either not provided or does not exist. Our expected-based forecast method has an

elegant algorithm and efficient. The effect of parameter variability is also considered

in this forecast particularly when assessing its accuracy. In addition, provided VaR

forecast, an alternative risk measure, namely Conditional VaR, may also be

calculated by using our method. This typically has higher value than VaR. A

numerical analysis is presented to illustrate this method by allowing normal, heavy-

tailed and extreme-value distributions.

Keywords : expected-based, Value-at-risk, accuracy, conditional VaR



116

IConMNS 191

Nonparametric regression mixed model Spline Truncated and Kernel on the

percentage of malnourished children under five in NTB province

M S Sauri, M Hadijati, and N Fitriyani

Universitas Mataram


[email protected]

Abstract

Based on data from the West Nusa Tenggara (NTB) Provincial Health Office,

children under five suffering from malnutrition were continue to increase, caused by

several factors that affected the incident. Therefore, an appropriate analysis is

needed to model children who suffer from malnutrition in NTB Province, consisting

of 10 districts based on the variables that influence it. The analysis in this study was

carried out using a nonparametric regression mixed model spline truncated and

kernel. The estimation of the nonparametric regression curve this depend on the

optimal knot points and bandwidths parameter. Therefore, in determining the

optimal knot points and bandwidths obtained from the value of Generalized Cross

Validation (GCV). Based on the analysis that has been done, we obtained GCV

value of 0.003 and coefficient of determination value of 99.99, respectively, with

0.307% value of mean absolute percentage error.

Keywords : bandwidth, generalized cross validation, knot point, malnutrition




117

IConMNS 193

Spline and Kernel nonparametric regression models on children's growth in

West Nusa Tenggara

N Fitriyani, M Hadijati, D Komalasari, and A Kurnia

Universitas Mataram



Abstract

This study aimed to analyse the relationship between children's growth and the

factors that influence it. This research was conducted so that the steps and policies

taken by the parties concerned could be more focused and conical, so that the

growth of children under five in West Nusa Tenggara (NTB) Province could be

achieved and could be in line with other regions in Indonesia. The analysis was done

by comparing the two nonparametric regression approaches, namely by selecting the

optimal knot points on spline and choosing the optimal bandwidths on the kernel.

The results obtained show that the spline approach gives better results than the

kernel approach in modelling the children growth in NTB.

Keywords : bandwidth, generalized cross validation, knot point





118

IConMNS 195

Vertex irregular total k-labeling on generalized Petersen graph

A I Pangestika and D E Wijayanti



Abstract

Let G be a graph of order n with the vertex set V(G) and the edge set E(G). Define a

map f∶ V(G)∪E(G)→{1,2,…,k} is the label of every vertex and edge of G. The

weight of any vertex u∈V(G) denote by wt(u) defined as the sum of the labels u and

all edges incident with u. The function f is vertex irregular total k-labeling on G if

every different vertex u,v∈V(G) have distinct weight. The total vertex irregularity

strength of G, denoted by tvs(G), is the smallest positive integer k for which G has a

vertex-irregular total k-labeling. In this paper, we prove that generalized Petersen

Graph P(n,1) have vertex irregular total k-labeling. Moreover, we determine the total

vertex irregularity strength of generalized Petersen Graph P(n,1).

Keywords : vertex irregular total k-labeling, generalized petersen graph, total vertex

irregularity strength



119

IConMNS 196

Particle swarm optimization on mixed Spline Truncated and Kernel

nonparametric model of the percentage of malnutrition in West Nusa Tenggara

M Hadijati, I Irwansyah, N Fitriyani, and M S Sauri

Universitas Mataram


[email protected]

Abstract

This research aims to develop a model of the percentage malnutrition of children

under five in West Nusa Tenggara based on the factors that influence it. Modeling is

carried out using approach of nonparametric regression mixed spline truncated and

kernel. The selection of optimum bandwidth and knot points in modeling is based on

GCV criteria and the optimization process is done using the Particle Swarm

Optimization (PSO) method. The PSO method provides a more efficient process of

selecting optimum bandwidth and knot points and better model.

Keywords : mixed spline truncated and kernel, optimum bandwidth and knot points,

particle swarm optimization





120

IConMNS 212

Super vertex anti-magic total labelling of TL(n)

I N Suparta, I M Suarsana, I N Budayana, and R Y Wulandari




Abstract

A graph G(V; E) is a simple graph consisting of a set of vertices V = {v1, v2, …, vp}

and a set of edges E = {e1, e2, …, ep} with p is a number of vertices and q is a

number of edges. The super vertex anti-magic total labelling of a graph G is an

injective function from V E to natural numbers so as to cause the vertex-weight of

each vertex to be different. The vertex-weight of v denoted by wg(v) is a sum of label

v and every edge labels incident with it. In this paper, we examine the total labelling

of the super vertex anti-magic total labelling of TL(n).

Keywords : graph, super vertex anti-magic total labelling





121

IConMNS 221 Graphical interface of genetic optimization in neural network modelling

for time series

B Warsito, R Santoso, H Yasin

Universitas Diponegoro, Semarang [email protected]

Abstract

Various gradient based optimization techniques have been developed for optimizing

neural network weights. But, the stability of results in obtaining the optimal weights

has become an interesting open problem. In recent developments, the utilizing of

non-gradient optimization has been widely practiced. Various heuristic optimization

methods have been used for obtaining the optimal weights of neural network.

Simulated Annealing, Ant Colony and Particle Swarm Optimization are the part of

popular techniques. One other technique that also often used is Genetic Algorithm.

The advantage of this algorithm is its generality in using various types of activation

function. It is a logical operation inspired by the properties of creatures, therefore

the use of an algorithm that imitates the behavior of creatures is expected to be

appropriate for obtaining the optimal weights. However, the using of genetic

optimization need a complicated computation especially in running programs related

to the selection of genetic components. In this research, the using of graphical user

interface (GUI) for the operation of genetic algorithm in optimizing neural network

has been developed. It is done to facilitate the process of running the computing

program of genetic algorithm in neural network modeling. The developed

computing program has been applied to time series data in the financial field.

Keywords : graphical interface, neural network modelling, time series


122

IConMNS 222 Efficiency nonminimally supported design for two parameters weighted exponential model

T Widiharih, M A Mukid, and M Mustafid

Universitas Diponegoro, Semarang [email protected]

Abstract

Minimally supported design is a design with the number of supported design equal

to the number of parameters in the model. Locally D-optimal design for weighted

exponential model is minimally supported design with uniform weight. The

standardized variance of D-optimal design is less than or equal the number of

parameters, and maximized the standardized variance at the supported designs. We

construct an alternative design by adding one supported design. Nonminimally

supported design is obtain from supported design of D-optimal design plus one

supported design in three ways, by adding one of them, by adding the average of

them or by adding one supported design around them. We compare nonminimally

supported designs in terms efficiency, standardized variance, and propose design

that are efficient and practically convenient for practitioners.

Keywords : efficiency, nonminimally supported design, weighted exponential

model


123

Abstract Topic : Mathematics Education

IConMNS 04

Improvement a positive attitude toward abstract algebra through APOS theory

approach

I M Arnawa1, Y Yanita

1, B Ginting

1, and S Nita

2

1 Universitas Andalas,

2 Politeknik Negeri Padang


[email protected]

Abstract

Rate of students’ participation in teaching and learning Abstract Algebra (AA)

depends upon attitude towards AA and Students’ success in AA depends upon the

rate of students’ participation in teaching and learning of AA. Thus it is very

important to improve students’ attitude towards AA. This research was pre-

experimental one shot case study design. The subject of this study were 50 students

who participated in the AA course academic year 2018/2019 at Andalas University.

A questionnaire was used to examine student’s attitudes towards AA and its

learning. Descriptive statistics and t-test with level of significance α = 0.05 were

used for data analysis. The results showed that: (1) APOS theory approach can

improve students attitude towards AA and its learning (2) There was no gender gap

in students’ attitude towards AA and its learning. (3). There was a positive

correlation between attitude towards AA and its learning.

Keywords : attitude, abstract algebra, APOS theory approach





124

IConMNS 19

The influence of inquiry learning method with open ended worksheet towards

quantitative reasoning and self-esteem

N W Arisujati, S Sariyasa, and G Suweken



Abstract

The aim of this research was to compare quantitative reasoning and self-esteem of

students who were taught using inquiry learning model with open ended worksheet

and those who were taught using conventional model. This research was using quasi

experiment approach with post test control only group design. The sample of this

study consisted of 127 middle school students who are divided into two groups. The

experimental group was taught using inquiry learning model with open ended

worksheet and the control group was treated with conventional model. Students’

quantitative reasoning data was collected using test technique and their self-esteem

data was collected using non-test technique. Both of the data was analyzed using

Manova. The results show that quantitative reasoning and self-esteem of students

who were taught using inquiry learning model with open ended worksheet were

better than students who were taught using conventional model. Inquiry learning

model with open ended worksheet give students more chances to explore their

thinking and ideas in problem solving. This model contributes to the improvement

of students’ capabilities in quantitative reasoning and self-esteem.

Keywords : inquiry, open ended, quantitative reasoning, self-esteem




125

IConMNS 26

The developing mathematics-teaching learning devices based on CORE to

increase students’ ability to communicate mathematics of X grade at SMA

Negeri 7 Denpasar

P W M Wijaya1, I W P Astawa

2, and I G P Suharta

2

1SMA Negeri 7 Denpasar,



[email protected]

Abstract

This study was aimed to obtain mathematics-teaching learning devices (lesson plan,

student’s book, and teacher’s guidance book) that was made based on CORE in

focus to increase students’ ability to communicate mathematics. This study was a

design research by Plomp (preliminary research, prototyping phase, and assessment

phase). Data were collected by using validation sheets (validity assessment),

learning process observation sheet, student’s response questionnaire, teacher’s

response questionnaire (practicality assessment), and mathematical communication

test (effectiveness assessment). The collected data were analyzed descriptively. The

result of this research showed that developing mathematics-teaching learning

devices are categorized: (1) valid, with average scores equal to 3.48; (2) practice,

with average scores equal to 2.87, (3) effective, with average scores equal to 76.05.

The student’s book contained: (1) student’s activity based on CORE; (2) real

problem in daily life; (3) open ended questions and tasks to cultivate mathematical

communication; (4) motivation text in every topic to support the students. The

teacher’s guidance book contained: (1) substance of lesson plan, student’s book and

its alternative solutions, (2) instruction in CORE learning.

Keywords : mathematics learning device, CORE, mathematical communication




126

IConMNS 36

Development of BLCS learning devices based on traditional and computer

explorative media to improve mathematical problem-solving skills

N W I S Dewi, I M Ardana, and G Suweken

Postgraduate Programme of Mathematics Education, Universitas Pendidikan

Ganesha


[email protected]

Abstract

This research is aimed to develop BLCS learning devices (lesson plan, work-sheet,

explorative media, and formative test) that are valid, practical, and effective by

using Bruner’s theory, local culture, and scaffolding to improve students’ problem

solving. This development research is based on Plomp’s procedure that use

observation sheet, questionnaire, interview guide, and essay test as the instruments.

There is several learning problems found in the preliminary research, i.e. (1) lack of

attention given to the student's early abil-ity, (2) students are not led to find

concepts, (3) students are given the final mathematical formula only, (4) the

exercises given are not math problems, and (5) lack of attention to the reflection of

learning. In prototyping phase, the initial learning devices was developed as a

solution of the problems, then validated by three judges. The trial limited on 12

students to obtain practical data, and field trial I on 40 students to obtain practical

and effectiveness data. Then in assessment phase, researcher conducts on 40

students to ob-tained valid, practical, and effective result from BLCS learning final

devices. The characteristics are (1) lesson plan could check students' background

knowledge, awaken the students' jengah concept, as well as facilitate teachers to do

scaffolding; (2) worksheet could facilitate students to find concepts and know the

problem solving skills; (3) explorative media designed in the form of computer and

traditional that contain a real local culture-based problems to facilitate students to

find concepts; and (4) formative tests to help teachers out of monotonous learning.

Keywords : Learning devices, BLCS model, traditional and computer explorative

media, problem solving




127

IConMNS 37

Developing mathematical comic based characters’ education to improve

problem solving skills in peer-tutoring

P A C Dewi1, I G P Sudiarta

2, and G Suweken

2

1STMIK Primakara,



Abstract

The purpose of this study was to develop mathematical comic-based characters

education to improve problem solving skills in peer-tutoring. This was a

developmental research using modified 4-D models by Thiagarajan and Semmel

(1974) and consisted of two stages of pilot study (in limited and broader

participants). There were 16 students gotten involved in the limited pilot study.

Meanwhile, the broader pilot study conducted in two cycles, in which 36 and 38

students took part in each cycle respectively. The instruments used to collect data

were observation sheet, questionnaire and essay test. The result showed that the

score of students’ problem solving ability was 79,81 (good category) in the first

cycle and increased to 81,5 (good category) in the second cycle. The results of the

study also showed that the comic based character has characteristics namely; (a)

providing problems that close to everyday life to increasing students problem

solving, and (b) providing students with media stories which contain character for

hardworking and self-independent figures.

Keywords : mathematical comic, character, peer-tutoring, problem solving skills




128

IConMNS 38

The difference of influence of ARIAS learning model aided with problem card

and those aided with students worksheet toward students’ understanding of

concept and mathematics interest

N K A Saputri, G Suweken, and S Sariyasa



[email protected]

Abstract

The aims of this research was to describe the difference of influence of ARIAS

learning model aided with problem card and those aided with students worksheet

toward students’ understanding of concept and mathematics interest for students of

grade 7 SMP at Sawan District, Buleleng regency, Bali province. ARIAS learning

model is a learning model consisting of five components, namely Assurance,

Relevance, Interest, Assessment, and Satisfaction. The research was an experiment

one using Randomized Posttest-Only Comparison Group Design. The sample was

drawn by random sampling technique to obtain experiment group I and experiment

group II. Data of students’ understanding of mathematics concepts was collected

using essay test and those of students' mathematics interest was collected using

questionnaire. Data was then analyzed using two-tail MANOVA at the 5%

significance level. The results show that there is a difference in understanding

concept and mathematics interest between students in two experiment groups.

Students' achievement taught with ARIAS learning model aided with problem card

is higher than those taught with ARIAS learning model aided with students

worksheet.

Keywords : ARIAS model, problem card, concept understanding, mathematics

interest




129

IConMNS 47

The influence of group investigation is contained jengah with geogebra’s

toward understanding concepts and self-efficacy

I G A P Dewi, I M Ardana, and G Suweken

Address Universitas Pendidikan Ganesha


[email protected]

Abstract

This study aimed to determine whether the cooperative learning model type

Investigation (GI) is loaded jengah concept has a positive effect on conceptual

understanding of mathematics and self efficacy student’s. This research was using

experiment with post-test only control group design which consist of 543 students as

the population in twelve classes.The data in this research was collected by the essay

test of conceptual understanding of mathematics and self efficacy questionnaire. The

Data were analyzed using Hotelling’s T2 test. The result of the research shows the

ability of conceptual understanding of mathematics and self efficacy of students who

follow cooperative type learning model GI is loaded jengah concept with media of

learning Geogebra better than the ability of students who follow conventional

learning.

Keywords : geogebra, jengah, concept understanding, self-efficacy, group

investigation




130

IConMNS 48

Development of mathematics learning device based on cooperative model

type of think talk write that supported by edmodo for developing the

mathematics problem solving skills

N W A W Yadnya, I M Ardana, and I G P Suharta



[email protected]

Abstract

This research aims to gather the mathematics learning device based on cooperative

model type of think-talk-write that supported by Edmodo that has a validity,

practical, and effective as an effort to improve student problem solving skills on

mathematics. This research classified as a type of design research by following the

design research procedure by Plomp that includes preliminary phrase, prototype

phrase, and assessment phrase. The subject of this research are students of grade X

of Senior High School Number 2 Negara. Learning device that developed are

students’ books and teachers’ books. Students book is a mathematics book that

intended by the researcher is a mathematics book that discus the trigonometry for

grade X. Results of the research shows that learning device that developed fulfilled

the validity criteria, practically criteria, and effectivity criteria that expected.

Characteristics on the students’ book and teacher’s book is adapted to the syntax of

think-talk-write model that supported by Edmodo.

Keywords : mathematics learning, cooperative model, think talk write, problem

solving




131

IConMNS 51

The influence of knisley mathematical learning model with geogebra towards

mathematical connection and mathematical disposition

I G A Jatiariska, S Sariyasa, and I W P Astawa



Abstract

This research was aimed at comparing mathematical connection and mathematical

disposition of student who were taught using Knisley Mathematical learning model

with Geogebra and those who learned using conventional learning. This research

used quasi experiment method with control only group design. The research

population consisted of 213 grade tenth science student at SMA Negeri 6 Denpasar.

In addition, cluster random sampling was used to get 2 groups sample. The

experimental group was learned using Knisley Mathematical learning model with

Geogebra and the control group was treated with conventional learning. The data

was collected using test and non-test technique and analyzed using Manova. The

result showed that mathematical connection and mathematical disposition of

students who were taught using Knisley Mathematical learning model with

Geogebra were better than students who were taught using conventional learning (F

= 4,410; p = 0,016). Knisley Mathematical learning model with Geogebra give

students more chance to explore their mind and idea in solving problem, so that can

improve their mathematical connection and mathematical disposition.

Keywords : Knisley, geogebra, mathematical connection, mathematical disposition




132

IConMNS 52

The effect of guided discovery learning model assisted by open-ended student

worksheets towards mathematical problem solving ability reviewed of students’

emotional intelligence

K M Pratiwi, I G P Sudiarta, and G Suweken



Abstract

This study aimed to find out whether students’ mathematics problem-solving ability

taught using guided discovery learning model assisted by open-ended student

worksheets is better than those using conventional learning. This research used a

sequential mixed method that combined quantitative and qualitative research.

Posttest only control design used for the quantitative data, while descriptive analysis

used for the qualitative data. The population of the research was 349 students from

the whole tenth grade in state high school of SMAN 5 Denpasar-Bali. In addition,

cluster random sampling had done after testing the sample’s equivalent. The data

obtained were analyzed using the t-test. The results of quantitative data indicate that:

(1) students’ mathematics problem-solving ability taught using guided discovery

learning model assisted by open-ended student worksheets is better than those using

conventional learning, (2) in the group of higher emotional intelligence level and the

group of lower emotional intelligence level, students’ mathematics problem-solving

ability taught using guided discovery learning model assisted by open-ended student

worksheets is better than those using conventional learning. The results of

qualitative data indicate that guided discovery learning model assisted by open-

ended student worksheets is able to give a positive contribution towards students’

mathematics problem-solving ability.

Keywords : guided discovery learning, problem solving, emotional intelligence




133

IConMNS 59

Collaborative learning devices contain of local culture (Tri-Hita-Karana) to

improve students’ mathematics conceptual understanding and students’

attitude of respect

N L M M Widayani, I G P Suharta, and I M Ardana



[email protected]

Abstract

This study was aimed to obtain mathematical learning devices by applying

collaborative learning models that contain local culture in Bali (Tri-Hita-Karana)

that have valid, practical and effective qualities to improve students' attitude of

respect and students’ mathematics conceptual understanding. This type of research

is design research with a development procedure by Plomp which consists of 3

phases, namely preliminary research, prototyping, and assessment phase. The

subjects of this research were 8th grade students of SMP Negeri 2 Kuta Utara in the

academic year 2017/2018. Validity data of learning devices is based on the opinions

of experts through the learning devices validation sheet. The practicality of learning

devices is obtained through data from the observation sheet of the implementation of

learning devices, student response questionnaires and teacher response

questionnaires to learning devices. While the data on the effectiveness of learning

devices is obtained through instruments of student’s attitude of respect and tests of

understanding mathematical concepts. The final results of this study obtained

collaborative learning devices that contain local culture that have valid, practical,

and effective qualities. The results of this study also showed that students' attitudes

of respect and students' mathematics conceptual understanding increased using the

learning devices developed.

Keywords : collaborative learning devices, local culture (Tri-Hita-Karana),

mathematics conceptual understanding, attitude of respect





134

IConMNS 60

Ethnomathematics of undagi Bali in Blahbatuh Village and the effort to get its

knowledge

R Sagitarini, I W P Astawa, and I G P Suharta



Abstract

This study was aimed to find out the ethnomathematics of Undagi Bali, how they

got its knowledge, and the model of integrating ethnomathematics in learning. This

research is a combination of qualitative research with exploratory and quantitative

methods with one-shot case study design. The data that collected on qualitative used

literature study, observation, and interview, while on quantitative used of

observation and interview. The subject is Undagi Bali, teacher and student of VIIG

class at SMPN 3 Gianyar. The results of the exploration are the measures that used

in the traditional Balinese building, processed of calculation of the gate-place site

that associated with the division and comparison, and the calculation of the distance

of buildings that related to multiples and repeated summation. The results of the pre-

experimental are the activities on learning that involved the ethnomathematics of

Undagi Bali are giving the media a canggahwang image, the students try to make the

right shape with a rope and wood, the students used term "lengkat" to measured the

length, and evaluated with the games that related to ethnomathematics. The

interviews showed that students are easier to understand, related to daily life, and be

able to used the media in learning correctly.

Keywords : ethnomathematics, undagi, Bali, integration, learning





135

IConMNS 61

Exploring the mental structure: classification of mental models of student

mathematical conjecture on open ended problems

I W P Astawa


[email protected]

Abstract

This study aims to classify mental models of student conjecture constructed from

open ended plane geometric problems. This research is a qualitative research with

40 subjects of Mathematics Education Study Program of Ganesha University of

Education. Data was collected by plane geometric conjecturing tasks and interview

and analyzed by content analysis to classify the mental model of the conjecture. The

results showed that mental models of student conjecture on open ended problems

could be classified as No Response (NR), No Conformity (NC), Specific

Misconception (SM), Partially Correct (PC), and Scientifically Correct (SC). This

mental model is an extension of the mental model of Sendur et al. (2010). Research

also shows that most of the mental models of students falls into mental models that

are not scientifically correct

Keywords : mental model, mathematical conjecture, plane geometry



136

IConMNS 65

Development of contextual fable module using characters with problem-based

learning to improve the understanding of concept and student learning

mathematics motivation

N M W Pradnyawati, I G P Suharta, and I N Suparta



[email protected]

Abstract

The purpose of this study was to knowing: (1) the characteristics of the contextual

fable module using character with problem based learning models to improve

students' understanding of concepts and mathematics learning motivation, (2) the

validity, practicality and effectiveness of charged contextual fable module using

character with problem based learning model to improve students' understanding of

concepts and motivation to learn mathematics. The type of research used in this

study was development research. This research was conducted in grade IV of SD

Negeri 2 Padangsambian in the Academic Year 2018/2019 with subject matter and

multiples involved 3 classes and 1 mathematics teacher.

The research data collected were: (1) validity test using teacher module validation

sheet and student module validation sheet, (2) practicality test using implementation

sheet, teacher response questionnaire, and student response questionnaire, and (3)

effectiveness test using concept understanding tests and motivation test in learning

mathematics. From the results of the analysis it can be concluded that: (1)

characteristics of student modules, student modules containing basic competencies

and learning objectives to be achieved, contain guided exercises to construct

students' understanding of the concepts learned, contain character education values

for student character development, contains problems that are close to student life,

and there is room for students to write conclusions and reflections. Characteristics of

the teacher books, which includes clear learning steps and in accordance with the

student module, contains notes related to the way the teacher develops student

character, contains alternative actions and alternative answers in directing students.

While the learning characteristics, students are given the opportunity to construct

their own mathematical concepts through the stages of problem-based learning,

improve student character, direct students to be independent in each learning, and

strive so students are more motivated in the learning process;(2) student modules,

teacher book and learning devices have fulfilled the criteria of validity, practicality

and effectiveness based on the results of questionnaires and tests.





137

Keywords : contextual fable modul, problem-based learning, understanding of

mathematical concepts, learning motivation

IConMNS 77

Developing realistic mathematics education (RME) oriented video to advance

vocational school students higher order thinking skills (HOTS)

I W Sumandya1 and I G A Handayani

2

1 IKIP PGRI Bali,

2 IKIP Saraswati Tabanan


Abstract

National exam in time ago still have polemic in the education field, mainly in

mathematics subject. The questions are unusual, there are questions that require

higher think or Higher Order Thinking Skills (HOTS). Teaching media which is able

to develop Higher Order Thinking Skills (HOTS) is yet adequate. This study aims at

developing teaching video oriented on Realistic Mathematics Education (RME) to

advance Higher Order Thinking Skills (HOTS) for vocational school students. This

study is a part of bigger study that using developing research as its method. The

subject of this study is students of 11th class in Wira Harapan Vocational School

which consist of 36 students (14 male students and 22 female students) academic

year 2018/2019. The data is collecting through questionnaire, observation and

students learning activity. The data is analyzed by using content and code analysis

technique according to students’ response type. The result shows that (a) total of

students’ response toward the implementation of RME oriented teaching video is 72

consist of 80,6% positive and 19,4% negative. (b) total of students’ response in

discussing process is 72 consist of 82,8% positive and 17,2% negative. According to

the results of data analysis for students’ responses toward teaching video

implementation and discussion can be concluded that the students are assisted to

comprehend the given problem, being active in the learning process and habilitate to

be ready and confidence in overcoming HOTS based exam.

Keywords : teaching video, RME, HOTS, vocational school




138

IConMNS 79

What, why, and how the research design in mathematics education

I G P Suharta


[email protected]

Abstract

This study aims to describe what, why, and how design research in education.

Through literature review and inductive thinking, the characteristics of design

research are: (1) oriented to problem solving, (2) producing educational

interventions (theories, programs, materials, systems, learning tools, etc.), and (3)

collaborating between practitioners and researchers. The steps of design research

consist of preliminary research, prototyping, and assessment. At the preliminary

research stage, what is needed is to get information about educational problems that

are a gap between the current and desired situation. This stage will contribute to the

choice and quality of interventions to overcome the problem. In the prototype stage

it aims to get a consistent design (construct validity) and practical (in the sense that

it can be used in certain contexts), continued until it produces an effective design).

During the prototype stage, several prototypes were developed, evaluated and

revised through formative evaluations. The assessment stage aims to determine

effectiveness. The focus is on the extent to which the implementation of the

intervention leads to the desired results.

Keywords : intervention, prototype, assessment, formative evaluation

139

IConMNS 84

The effect of open-ended learning models on understanding concept by control

of numeric trainers of students

I K Sukendra


[email protected]

Abstract

The main objective in this study was to determine the effect of learning models on

open mathematical problem solving on understanding mathematical concepts by

controlling numerical talent. This research was conducted in class XI Denpasar 7

High School with a quasi-experimental method with the design of The

Nonequivalent Posttest Only Control Group Design, involving a sample of 72

students taken by simple random sampling technique. The independent variable in

this study is the learning approach which is divided into two levels of factors,

namely the learning model of solving open mathematical problems imposed on the

experimental group and conventional learning models imposed on the control group.

As the dependent variable in this study is an understanding of mathematical

concepts. Numerical talent as a control variable (covariable). The research

instruments were in the form of tests, namely tests of understanding mathematical

concepts and numerical aptitude tests. Data analysis using one-way t-test and

Anakova.

The results showed that: (1) there was an influence of understanding mathematical

concepts between students who followed the Open-Ended learning model and those

who followed the conventional learning model, 2) there was an influence of

understanding mathematical concepts between students who followed the Open-

Ended learning model and those who followed conventional learning model after

numerical talent control is held

Keywords : learning model, open-ended, numerical talent, understanding of

concepts

140

IConMNS 86

Developing GeoGebra mathlet on geometry transformation oriented IKRAR

strategy to improve students’ mathematical problem solving ability

I D G P Ardinata


[email protected]

Abstract

This study aimed to obtain mathematics-teaching learning materials (GeoGebra

mathlet and teacher’s guidance book) that was made oriented on IKRAR strategy

(Inisiasi, Konstruksi-Rekonstruksi, Aplikasi, dan Refleksi) in focus to improve

students’ mathematical problem solving ability of VII Grade at SMP Negeri 7

Denpasar. This study was a design research by Plomp (preliminary research,

prototyping phase, and assessment phase). The subjects of this research were 2

teachers and students of VII Grade in preliminary research, 16 students of VII.2 and

all students of VII.1 and 2 teachers in prototyping phase, all students of VII.3 and 2

teacher in assessment phase. Data were collected by using validation sheets on

media of GeoGebra and teacher’s guidance book (validity assessment), learning

process observation sheet, student’s response questionnaire, teacher’s response

questionnaire (practicality assessment), and mathematical problem solving test

(effectiveness assessment). The collected data were analyzed descriptively. The

result of this research showed that developing mathematics-teaching learning

materials were categorized: (1) valid, with average scores equal to 3.21 based on

doing expert validation; (2) practice, with average scores equal to 3.4, based on

learning process observation, teacher and students’ responses, (3) effective, with

average scores equal to 78.82 based on student test of mathematical problem

solving. Characteristics of GeoGebra media include: (1) providing real problems at

daily life; (2) provide material understanding visually easily and structured; (3)

presents a problem exercise that measures problem solving. While teacher’s

guidance book: 1) the preparation of clear directions, words, and pictures for easy

understanding; 2) present instructions in implementing learning.

Keywords : GeoGebra, IKRAR, transformasi geometri, problem solving skills



141

IConMNS 87

The effect of blended learning model to conceptual understanding and

procedural fluency

D G A P Nugraha


[email protected]

Abstract

This study aims to determine the effect of implementing blended learning model to

conceptual understanding and procedural fluency by using quasi experimental

research with post test only control group design. The population in this study

includes 9 classes VIII SMP N 1 Sukawati academic year 2017/2018. 2 class as

samples were obtained by using cluster random sampling technique by conducting

drawing to the population. Blended learning model used in this research is flipped

classroom model with edmodo which used as supporting online learning.

Conceptual understanding and procedural fluency is measured by using conceptual

understanding and procedural fluency test that has been valid and reliable.

Furthermore, the scores obtained were analyzed by using MANOVA test with 5%

significance level. The results of hypothesis test showing the blended learning model

has a positive effect on conceptual understanding and procedural fluency either

individually or simultaneously.

Keywords : conceptual understanding, procedural fluency, blended learning model,

edmodo



142

IConMNS 97

Evaluation of implementation of content standards and standard processes on

mathematical learning

I W Suantara, I G P Sudiarta, and I N Suparta



[email protected]

Abstract

This study aims to determine the results of evaluating the application of content

standards and process standards implemented at Elementary School in accordance

with regulation of the minister of education and culture [6] (Permendikbud) No. 21

of 2016. Content standard evaluation is carried out by content analysis techniques

based on mathematical proficiency and carried out on two books. While the standard

process is analysed from the results of learning observations and content analysis

techniques carried out on syllabus, lesson plans and assessment. Retrieval of data in

this study was carried out by the method of observation, interviews and

documentation. Drawing conclusions from this study using the Delphi 3 round

technique. Some things to note are from subject matter that is too broad and deep.

So that the conclusion of the content standard according to [6] Permendikbud

number 21 of 2016 has not been applied to the maximum. The standard process in

accordance with [7] Permendikbud No. 22 of 2016 has accommodated everything

needed by students and teachers. In general, the standard implementation of school

processes has been carried out but not yet maximally. The problem is the difficulty

of the teacher in assessing attitudes, knowledge and skills in each lesson.

Keywords : implementation, content standards, standard processes, lesson plan,

syllabus





143

IConMNS 98

Learning trajectory of sequences and series using contextual approach assisted

by Socratic questioning (CA-SQ) to develop students critical thinking skills

N M Darmini, I N Suparta, and I G P Sudiarta



[email protected]

Abstract

This study was aimed at designing a valid, effective, and practical learning trajectory

using CA-SQ to develop students’ critical thinking skills on sequences and series.

This research is a three-stage design study. In the preparing for the experiment stage,

the hypothetical learning trajectory and the instruments for this study were

developed. Learning implementation was done in three cycles. Data of students’

critical thinking skills which were collected were as follows: 1) students’ works on

worksheets in which indicators of students’ critical thinking skills were analyzed, 2)

conversation recording of group discussion in which critical thinking skills might

have occurred, then the results were transcribed and analyzed, 3) the results of

students’ critical thinking skills test. The collected data were analyzed descriptive-

qualitatively. This research has resulted in learning trajectory having the following

characteristics: 1) students actively work on contextual mathematical problems; 2)

students are actively involved in the inquiry and modeling process so they are able

to construct their own knowledge 3) students actively explore their thoughts and

ideas through Socratic questioning; 4) students solve the given problem and then

make final confirmation together with the teacher; and 5) students draw the final

conclusion regarding the concept which has been discussed.

Keywords : sequences and series, contextual approach, Socratic questioning, critical

thinking skills, design research





144

IConMNS 99

Mathematical habits of mind (MHM) learning strategy on students’

mathematical problem solving ability of the 10th grades viewed from formal

reasoning

N L G S Suardani, S Sariyasa, and I N Suparta



[email protected]

Abstract

The aim of this research was to describe the effect of MHM teaching strategy and

formal reasoning level on students’ mathematics problem solving skills. This

research was a quasi experimental research with posttest only control group design.

The research was conducted for grade X in SMK PGRI 3 Badung. The sample were

taken by using cluster random sampling technique which gave 182 students. The

data of formal reasoning level were collected by using formal reasoning test and the

data of student’s problem solving ability were collected by using problem solving

test. The data was analyzed by two-way variance analysis (two-way ANOVA) aided

by SPSS 17.0 for windows with 5% level of significance. The result of research

showed that: (1) student’s problem solving ability who learned by MHM teaching

strategy are better than student’s problem solving ability who learned by

conventional instruction and (2) there is an interaction between MHM teaching

strategy and student’s formal reasoning level toward student’s problem solving

ability. Student’s problem solving ability who learned by MHM teaching strategy

was better than the student's problem solving ability who learned by conventional

instruction for students who had high level of formal reasoning ability, and student’s

problem solving ability who learned by conventional instruction was better than the

student's problem solving ability who learned by MHM teaching strategy for

students who had low level of formal reasoning ability

Keywords : mathematical habits of mind, problem solving, formal reasoning





145

IConMNS 100

The influence of MEA’s assisted by PISA’s problem solving tasks towards the

mathematics literacy of the 8th grades of SMPN 4 Kuta Selatan

N P S Noviyanti, G Suweken, and I G P Sudiarta



[email protected]

Abstract

This study was aimed at determining whether mathematical literacy of students who

joined MEA’s assisted by PISA’s problem solving tasks (MEA-PISA learning

approach) was better than students who joined conventional learning. This research

is carried out by using quasi experimental design. The population in this study was

the students of grade VIII as much 397 students. The sample was taken by cluster

random sampling technique which gives 94 students. The students' mathematical

literacy data were collected using mathematical literacy test. The data was analysed

by two-way variance analysis aided by SPSS 16.0 for windows with 5% level of

significance. The results showed that: (1) the students' mathematical literacy abilities

who joined MEA-PISA learning approach were better than those students who

joined the conventional learning and (2) there was no interaction between the

application of MEA-PISA learning approach and gender to students' mathematical

literacy skills. In male students, the mathematics literacy abilities of students who

joined MEA-PISA learning approach were better than the mathematics literacy

abilities of those students who joined the conventional learning. While, in female

students the mathematics literacy abilities of students who joined MEA-PISA

learning approach were better than the mathematics literacy abilities of those

students who joined the conventional learning

Keywords : model eliciting-activities, PISA, mathematical literacy





146

IConMNS 105

The influence of edmodo assignment method towards students’ motivation and

achievement on learning mathematics

G A Mahayukti, S Sariyasa, and N G A M D N Suci



[email protected]

Abstract

This research focused on testing the influence of the Edmodo assignment method

towards students’ motivation and achievement of learning mathematics in the form

of post-test-only-control-group design. The population of this research was the 10th

grade students of the Natural Science (MIPA) of SMA Negeri 3, Singaraja, year

2018/2019. Those students were divided into 4 groups and the sample is determined

by the cluster random sampling technique. The data of students’ learning motivation

was taken by giving questionnaires while academic achievement is taken by giving

academic test. Then, the data was tested with MANOVA test and one-sided t-test

with 5% significance. The precondition test was performed before the hypothetical

test that used normality test, homogeneity variance, homogeneity matrix

variance/covariance, and collinearity. Based on the MANOVA test, it can be seen

that there were differences upon motivation and achievement of learning

Mathematics between students who follow Edmodo assignment method and those

who follow conventional learning method. The one-sided t-test showed that

partially, the motivation and achievement of learning for those who follow the

Edmodo assignment method was better than those who follow conventional learning

method. Therefore, it can be concluded that Edmodo assignment method gives

positive impact both simultaneously and partially.

Keywords : mathematics, assignment method, edmodo, motivation, academic

achievement





147

IConMNS 112

The effect of digital literacy on the ability of teachers to develop of HOTS

assessment

I W Widana

IKIP PGRI Bali

[email protected]

Abstract

Digital literacy and the ability to develop Higher Order Thinking Skills (HOTS)

assessment are important competencies for teachers in Industrial Revolution 4.0.

The purpose of this research was to determine the effect of digital literacy on the

ability of teachers to develop HOTS assessment. This study is survey research. The

population were senior high school and vocational high school mathematics teachers

in Bali, NTB, and NTT provinces. Sampling using multistage random sampling

technique. The data was collected using a questionnaire. Data were analyzed using

simple regression analysis methods. Data processing was carried out using the SPSS

23.0 program with a significance level of alpha=0.05. The results of data analysis

showed a value of F=60.594 with a significance value 0.000 which means that

digital literacy has a significant effect on the ability of teachers to develop HOTS

assessment. The magnitude of the influence of digital literacy on the ability of

teachers to develop HOTS assessment is 13.2%. Thus the ability of teachers to

develop HOTS assessment can be influenced by other factors of 86.8%. The

recommendation proposed is that further research is needed to reveal other variables

that contribute on the ability of teachers to develop HOTS assessment.

Keywords : digital literacy, HOTS assessment, effect, ability of teachers


148

IConMNS 140

The effect of authentic problem-oriented learning resources with maple on

financial mathematics and linear programing learning outcomes viewed from

initial ability

I G N Pujawan, I P P Suryawan, and I M Suarsana



[email protected]

Abstract

This study aimed at determining whether the Authentic Problem-Oriented Learning

Resources with Maple (APOLR-M) has a positive effect on Financial Mathematics

and Linear Programing (FMLP) learning outcomes (LO) viewed from initial ability.

This research applied an experiment with one factor group randomized design. The

population is 100 students of the mathematics education undergraduate program,

Ganesha University of Education who taken FMLP course at academic year

2017/2018 that distributed to 4 classes. Two classes were taken as sample by

random sampling, one class as experimental class and another as control class. The

treatment at experimental class was learning assisted with APOLR-M, and the

student initial ability as group factor. The LO data was collected using essay test.

The LO data were analyzed using two way Anova with significant level of 5%. The

result showed that (1) using APOLR-M has a significant effect on students' LO and

(F=46.329; p < 0.05), (2) differences in students initial abilities affect student

learning outcomes (F=29.687; p < 0.05).

Keywords : authentic problem, learning outcomes, initial ability, financial

mathematics and linear, programing, maple



149

IConMNS 142

Classification of solving non-routine mathematical problems of 8th grade

students

A A A S Pramayudi, I G P Sudiarta, and I W P Astawa



[email protected]

Abstract

A non-routine problem is any complex problem that requires some degree of

creativity or originality to solve. Non-routine problems typically do not have an

immediately apparent strategy for solving them. This research aims to classify the

non-routine problems in textbooks for grade 8th students and to classify

characteristics of solving non-routine mathematical problems of 8th grade students.

This article discusses the characteristics of students' non-routine mathematical

problem solving. This research used a qualitative research to describe the

characteristics of the levels of problem solving involving five students from 8th

students at junior high school 1 Kintamani. Five students were selected according to

the purpose of this study provided the students were 8th grade students’ who had

obtained the mathematics material contained in the questions. Data on solving non-

routine mathematical problems of students is collected through problem solving tests

and in-depth interview. Data is analyzed by data reduction, data display, and

conclusion drawing. Data that has been verified is analyzed using the constant

comparison method. Characteristics of non-routine mathematical problem solving

students can be classified into 4 levels, level 1 to level 4 with different

characteristics at each level. Classification is based on reference to problem solving

according to Polya.

Keywords : non routine problem, problem solving, qualitative research



150

IConMNS 143

The effect of online discussion in blended learning on the mathematical concept

comprehension and attitude on the 8th grade students of SMP Negeri 1 Mengwi

P W Prawestri, I G P Sudiarta, and I W P Astawa



[email protected]

Abstract

This research aimed at (1) investigating if asynchronous online discussion in

Blended Learning (BL) provide positive impacts on the students’ concept

comprehension and attitude, as well as (2) describing why asynchronous online

discussion in BL is better at improving students’ concept comprehension and

attitude. This research combined quantitative and qualitative research utilizing

explanatory sequential design. The quantitative research used Randomized Posttest-

Only Comparison Group Design with 68 students as the samples and the qualitative

research used descriptive approach on five population subjects, which was done

purposively. The quantitative data, in the form of students’ concept comprehension

and attitude, was collected by using essay test and questionnaire. The quantitative

data was in the form of: (a) students’ responses on the implementation of online

discussion, (b) online and group discussion activities, (c) students’ works that were

collected by using (a) interview, (b) observation sheet, (c) documentation. The

quantitative data was analyzed by using Manova test with 5% significance level.

The qualitative data was analyzed in several steps: (a) data reduction, (b) data

presentation, and (c) data verification. The result of the experiment showed that the

concept comprehension and attitude of the students who attended asynchronous

online discussion in BL were significantly better than of the students who attended

synchronous online discussion in BL and the students who attended asynchronous

online discussion were more enthusiast, more trained in communicating their

comprehension, as well as more motivated in discussion and the learning process.

Keywords : blended learning, asynchronous online discussion, synchronous online

discussion, concept comprehension, student’s attitude



151

IConMNS 144

Validity of introduction to basic mathematics teaching materials based on

conceptual understanding procedures models and character education

M Juniantari, G A Mahayukti, I N Gita, and I P P Suryawan




Abstract

The purpose of this study was to develop a valid introduction to basic mathematics

teaching materials based on conceptual understanding procedures models and

character education. It aims to improve the student's understanding of concepts.

Plomp’s development procedure was applied to conduct the study which consists of

five stages, namely: (1) preliminary investigation, (2) design, (3)

realization/construction, (4) test, evaluation, and revision, and (5) implementation.

In the first year, this study has reached the stage of testing, evaluation, and revision

to determine the validity of teaching materials. The validity of the content can be

viewed on the suitability of teaching materials developed by the theory of the

development and characteristics of the learning model. The validity of the construct

can be viewed on the appropriateness of each component of teaching materials with

the characteristics of the learning model obtained from the expert. The construct

validity of teaching materials is very valid. Advice from validator used as a

reference for the revision of teaching materials. The next step is doing limited

implementation to see the practicality and effectiveness of teaching materials.

Keywords : introduction to basic mathematics teaching materials, conceptual

understanding, procedures models, character education





152

IConMNS 146

Developing interactive videos with sign language as a learning resources on

fraction topics for junior high school hearing-impaired students

I M Suarsana


[email protected]

Abstract

This research aimed to (1) produce interactive videos with sign language (IVSL) for

the hearing-impaired student, (2) determine the feasibility and practicality of the

IVSL, and (3) describe the effectiveness of the IVSL to improve students’

achievement in learning fraction. This research referred to the ADDIE model

involving five stages, i.e. analyze, design, develop, implement, and evaluate. The

feasibility, practicality, and effectiveness of media were analyzed descriptively. The

feasibility of IVSL is validated by mathematics expert, linguistic expert, learning

design expert, and media expert using validation sheets. The practicality of IVSL is

determined by user response (teachers, students) using questionnaires, and the

effectiveness of IVSL based on students’ essay test score on limited trial. The

limited trial involved a small group of 10 students. The result shows that the

interactive video with sign language is in the criteria of feasible, practical and

effective. Furthermore, it is necessary to conduct field trials with a larger population

to ensure that the IVSL suitable as learning resources for Hearing-impaired

Students.

Keywords : interactive video, sign language, fraction, hearing-impaired students


153

IConMNS 147

Why should you reverse the order when dividing a fraction? a study of pre-

service mathematics teachers’ pedagogical content knowledge in fractional

concept

R A Apsari and S Sariyasa



Abstract

This study was a part of larger study in examining pre-service mathematics teachers’

pedagogical content knowledge. The aim of the present study was to elaborate the

prospective teachers’ conceptual understanding in fraction and how they will teach it

to the students. There were 50 participants in this study, all of them are the final year

students of mathematics education study program of Universitas Pendidikan

Ganesha who already took the teaching practice program in the school. The data

were collected through written test and continued by interview with the participants.

The data were analyzed qualitatively using descriptive method. From the result, it is

found that the prospective mathematics teachers have difficulties in understanding

the concept of fractions. It leads to the lack of comprehension in teaching the

concept to the students. Reflect to the result, it is recommended to the teacher

training institution to emphasize the big ideas in school mathematics’ topics to

ensure the prospective teachers have a sufficient knowledge to teach mathematics

meaningfully.

Keywords : fraction, division, pedagogical content knowledge, concept



154

IConMNS 148

Introducing and developing informal inferential reasoning based on APOS

theory for 8th grade students

U F Akbari, I G P Sudiarta, and I G P Suharta



[email protected]

Abstract

This research aimed to develop Informal Inferential Reasoning (IIR). It is done

based on APOS theory to analyze students’ mental structure related to the

development of Informal Inferential Reasoning (IIR). This research used Design

Based Research as the methodology. The subject in this research is the 8th grade

students divided into three groups each consisted of 30 students in SMPN 2

Singaraja and SMPN 3 Singaraja. This research is done in four cycle. The data were

collected through video recordings of teaching experiments, students’ written task

and test results and daily observation result.. Data were analyzed using qualitative

analyze based on APOS Theory through comparing and contrasting Hypothetical

Learning Trajectory (HLT) and Actual Learning Trajectory (ALT) and . This

research resulted a set of instructional materials in developing IIR and the

accompanying theory and students’ genetic decomposition based on the mental

structure of IIR which formed through this research.

Keywords : informal inferential reasoning (IIR), APOS theory, design research,

design based research, hypothetical learning trajectory




155

IConMNS 150

Development content and online discussion strategy in blended learning to

improve student mathematical learning outcomes

L D P Patni, I G P Sudiarta, and I N Suparta



Abstract

This study focuses on the content analysis method and its finding towards the

implementation of blended learning approach in Indonesian 2013 Curriculum by

means of literature review. It is carried out by using selected journals available

online from the Education Resources Information Center (ERIC) which are then

analyzed using Complex Adaptive Blended Learning Systems (CABLS). This

method would systematically and accurately improve our overall understanding

towards the blended learning approach especially for Indonesian 2013 Curriculum

based on literature review and produce a complete overview towards the research

field related to this learning approach. In this study, the content analysis research is

conducted on 12 empirical studies from the current literature. The result of this study

intends to: 1) clearly explain the existing gap within the studies on blended learning

in the education field; and 2) to promote a more comprehensive understanding of

what has been achieved and what needs to be achieved in blended learning research

and practice especially for Indonesian 2013 Curriculum. Then, the results of this

study showed that 1) One of the purpose of 2013 Curriculum is producing motivated

students, however blended learning doesn’t give significant improve of student’s

motivation in some regions of Indonesia, and 2) Blended learning in line and

applicable to 2013 curriculum, because it is generally effective in improving

student’s cognitive, affective, and psychomotor achievement which are the main

purpose of 2013 curriculum, but the device and supporting media of blended

learning also needs to be developed to give optimum results.

Keywords : blended learning, Indonesian 2013 curriculum, content analysis



156

IConMNS 151

A content analysis of implementation of blended learning approach in

Indonesian 2013 curriculum

I D M K Yasa, I W P Astawa, and I G P Sudiarta



[email protected]

Abstract

Content and strategies online discussion have an important role in increasing the

effectiveness of blended learning. This study aims to identify the characteristics of

content and the application of effective online discussion strategy and describe their

quality in terms of validity, practicality, and effectiveness as means to improve

students mathematics learning outcomes. This research is a developmental research

with Design Based Research approach. The subject of this research was students of

VIII SMP Negeri 1 Mengwi in the academic year 2018/2019. The data were

analyzed descriptively. This research produce blended learning content that meets

valid, practical and effective criteria. The content has the following characteristics:

1) Text, containing a summary of the material and focuses on the ability of students

to construct their own knowledge. 2) Interactive media, being able to actively

involve students in learning abstract concepts with the helping of illustrations and

visualization. 3)Video links, helping students improve their mathematical skills such

as the ability to decrease formulas. 4) Exercises, containing variations in the types of

questions and giving students instant feedback. This research also resulted in

effective online discussion strategy with the following steps : setting goals for online

discussion, preparing role for online discussion, preparing content that facilitates

students to learn independently, motivating students to have the confidence to hold

discussions, involving teachers to moderate discussions, implementing reward and

punishment by giving points and additional tasks respectively to increase positive

competitiveness, evaluating by giving online quizzes.

Keywords : blended learning content, mathematics learning outcomes, online

discussion strategy




157

IConMNS 152

Effect of eliciting activities models in mathematics learning

I G A S K Sari, I W P Astawa, and I G P Sudiarta



[email protected]

Abstract

This study aims to determine effect of Eliciting Activities models in mathematics

learning. This research is Content Analysis research by taking 14 articles from

https://eric.ed.gov and https://scholar.google.com, with taking 8 articles from

https://scholar.google.com and 6 articles from https://eric.ed.gov. The researcher

took articles from the two sites above because the two sites contain a lot of

education and are very easily accessible to the public. The way to analyze the

content is to record the contents of the abstract and compare it between one article

with another article. the articles observed came from Indonesia, the United States,

Singapore,and Turkey. The data obtained as a whole are of three types, namely: 1.

The Eliciting Activities models can build and solve open problems in mathematics

learning. 2. The Eliciting Activities models can improve students' abilities and 3.

The Eliciting Activities models can improve spatial reasoning and conceptual

understanding.

Keywords : model eliciting activities, creative, mathematics




158

IConMNS 154

Effectiveness of flipped learning models in mathematics

P M Adi, S Sariyasa, and I M Ardana



Abstract

This study aims to determine the Effectiveness of Flipped Learning Models in

mathematics. This research is Content Analysis research by taking 20 articles from



took articles from the two sites above because the two sites are because they are

world-famous sites about education and many people access them. The way to

analyze the content is to record the contents of the abstract and compare it between

one article with another article. The articles observed came from four countries,

namely the United States, China, South Korea and Saudi Arabia. The data obtained

as a whole are of three types, namely: 1. The Flliped Learning learning model can

improve students' achievement & mathematical learning styles from junior high to

tertiary levels compared to conventional learning models 2. Flipped Learning

learning models can increase learning motivation compared to conventional learning

models . 3 In some cities in the United States, the Flipped Learning learning model

has no significant effect compared to the conventional learning model seen from the

test results.

Keywords : flipped learning, mathematics, content analyze




159

IConMNS 159

Effectiveness of the use of geogebra in mathematics learning

N P P D Palgunadi, I G P Sudiarta, and I M Ardana



[email protected]

Abstract

The purpose of this study was to describe the effectiveness of using GeoGebra in

mathematics learning. The method used in compiling this research is content

analysis. Based on the results of the analysis showed quite varied results in the

world of education. By searching for the keyword "GeoGebra use in mathematics

learning" there are 51,742 articles contained in ERIC and 39 articles contained in

DOAJ. The articles observed came from five countries, namely Turkey, Peru,

Ethiopia, Malaysia and India. After tracing the first 20 articles, the results that have

a positive impact have been obtained but some have no impact. In Mehmet Fatih

Ocal research stated that there were no significant differences between the scores of

experimental group students and controls regarding procedural knowledge between

the use of GeoGebra and traditional learning. In contrast to the research from Dona

Dinda Pratiwi which showed that the application of GeoGebra had a positive

influence on improving the ability to understand mathematical concepts in the

learning process. Therefore, it needs to be studied further about the factors that

cause no impact on procedural knowledge.

Keywords : geogebra, mathematics, learning




160

IConMNS 160

Effectiveness of the use CAS technology (computer algebra system) in

mathematical learning

N M S T Riani, G Suweken, and S Sariyasa



Abstract

The use of technology to improve mathematics learning can be done through

computers and various other software. One computer program that can be used in

mathematics learning is CAS (Computer Algebra System). CAS software is an

application that is feasible to develop because it helps in complex calculations. The

purpose of this study was to determine the effectiveness of CAS technology in

mathematics learning. The method used in this study is content analyzing taken from

6 articles with sources https://eric.ed.gov. The findings of the article containing this

title are from Moscow, Melbourne, Turkey, Australia. Most of the research related

to the use of CAS in mathematics learning is applied to the levels of secondary and

tertiary education. Examples of material that can be integrated with CAS software

are probability theory, polynomial functions, geometry, calculus, etc. The findings

of the article relating to this title are as follows: 1) Research from (Mezhennaya &

Pugachev, 2019) states that visualization built by CAS contributes to students

understanding about complicated theory and complicated probability theory, 2)

(Cameron & BLL) states that the use of CAS allows students to solve problems

beyond the ability of paper and pencil, 3) (Karakus & Aydin, 2017) states that the

use of CAS in calculus lessons has a positive effect on developing spatial

visualization abilities of students, 4) (Alves, Francisco, 2013 ) states that the CAS

allows students to carry out complex algebraic operations and visualization of

tridimensional objects, 5) (Fongar, Nicole, 2011) states that CAS as a

representational tool and secondary school students connect representation when

using CAS technology. 6) (Geiger & Faragher, 2010) show that CAS technology has

the potential to mediate a collaborative approach between students and school

teachers. From the findings of this article it can be concluded that CAS technology

is very important to be studied and developed at this time because it can help with

work or calculation.

Keywords : CAS, mathematics, mathematics learning




161

IConMNS 161

The effectiveness of STEM (science, technology, engineering, and mathematics)

in mathematics learning

P N Listiari, I G P Suharta, and I N Suparta



Abstract

The purpose of this paper is to 1) know the effectiveness of STEM (Science,

technology, engineering, and mathematics) in mathematics learning; 2) knowing the

contribution of STEM to mathematics learning. The method in writing this paper is a

literature study and content analysis, by searching for the keyword "STEM" in

ERIC.ed.gov, then 925 articles are found. After tracing 223 first articles, the results

of the literature study show that (1) there is the application of STEM, children show

positive attitudes towards mathematics; (2) STEM can meet the needs of gifted

students by providing intellectual challenges, motivated peer groups, and teachers

who are skilled in mathematics; (3) with the existence of STEM, indicators for

listening, taking notes and using computers, calculators or other machines in the

mathematics class are most positively correlated with student gains in mathematical

achievement. The results of the content analysis showed that STEM made a positive

contribution to mathematics learning.

Keywords : STEM, mathematics, mathematics learning




162

IConMNS 162

Influence of anxiety in mathematics learning

P L Lestari, I M Ardana, and I G P Suharta



Abstract

Mathematics is one of the subjects that are often disliked by students. The students

has many reasons for this, one of which is students feel difficulties in understanding

mathematics learning. Students' dislike of mathematics causes students to be

reluctant to learn mathematics. More severe problems will arise if students feel

uncomfortable in learning mathematics and even feel the stress that causes students

to be indifferent and less motivated in learning mathematics. For some people the

situation where students feel uncomfortable, disturbed and even indifferent to

learning activities is believed to arise because of the fear or anxiety about learning

mathematics. This anxiety can have different effects for most students. There are

students who because of anxiety become indifferent and reluctant to learn

mathematics instead there are also students who because of anxiety and fear are

actually motivated to eliminate their fear. Through this presentation, the author

wants to focus attention on the problem of anxiety in learning mathematics, so the

formulation of the problem in this paper is focused on: 1) what is meant by

mathematical anxiety? 2) how to identify math anxiety? and 3) what is the impact of

excessive mathematical anxiety in mathematics learning? Based on these problems,

the author would like to convey that this paper aims to explain the influence of

anxiety on mathematics learning, its impact and how to identify anxiety itself.

Basically anxiety is fear due to conditions or an uncomfortable environment.

Anxiety can be identified from several components such as mathematics knowledge,

somatic, cognitive, and attitude. Anxiety, fear or excessive stress cannot be sure to

have a good or bad influence on mathematics learning. Most say that excessive

anxiety can adversely affect learning, but on the other hand this anxiety can build

students' motivation to learn mathematics to be better than their surrounding friends.

Keywords : STEM, mathematics, mathematics learning




163

IConMNS 169

Content analysis of grade IX curriculum mathematics student book K13 based

on Bell’s criteria

D A O Setiawati, G Suweken, and I N Suparta



Abstract

Education is a conscious effort to prepare students through guidance, teaching, and /

or training for his role in the future (UU RI. 2 1989, Chapter I, Article 1). To

improve the quality of education can be done with the effort to improve aspects of

learning and teaching or learning. The 2013 curriculum student book is one of the

tools for implementing the 2013 curriculum in learning provided by the government

that has been provided by planned and systematic. Student books have been used

since the beginning of the 2013 curriculum began to be applied in schools to date.

But in its use there are still some complaints from both teachers and students. Some

of these complaints come from the content / content and editorial factors of the

student book. It is necessary to review both the content and editorial content.

According to Bell (1981: 381-385), there are four main criteria that can be used to

evaluate the textbook of mathematics, namely: (a) criteria related to mathematical

material, (b) criteria relating to the delivery methods, (c) criteria related to physical

characteristics, and (d) the criteria relating to the instructions for the teacher. This

study aims to analyze the K13 students book of IX grade based on its compliance

with Bell criteria. Based on the analysis and discussion found data that the

appropriate between the material on the 9th grade mathematic's student textbook

with material based on Bell's Criteria for Exponentiation and Root Forms chapter

included in the category enough accordingly, Quadratic Equation and Quadratic

Function chapter are include in the category enough accordingly, Transformation

chapter include in the category enough accordingly, the Congruence and Similarity

chapter include in the category enough accordingly, and Curved Face Three

Dimensional Objects chapter include in the category enough accordingly.

Keywords : analysis, Bell’s criteria, mathematics text book




164

IConMNS 171

Literature study on vertical equating test of Rasch model to measure the

development of student cognitive ability in mathematics lessons

N L P D Nariyanti, I G P Sudiarta, and G Suweken



Abstract

This study aims to describe the vertical equating test of the Rasch model and the

development of students' cognitive abilities in mathematics. The research method

used is the literature study method. The data collection method used is the

documentation method. The data analysis technique used is content analysis. To

maintain the accuracy of the assessment and prevent misinformation in data

analysis, it is checked between literatures and reread the literature. The results of the

literature study show that: (1) by tracing the keyword vertical equating test of Rasch

model at https://eric.ed.gov/ then 1,394 articles are found. After tracing the first 90

articles it was found that the vertical equating test of the Rasch model was quite

widely used to make measurements and generally gave good and stable results; (2)

by searching for the keywords development of student's mathematical abilities at

https://eric.ed.gov/ it was found 265,087 articles and searches at https://doaj.org/

with keywords in the development of students' mathematical abilities, found 16

articles. After tracing the first 60 articles in ERIC and 16 articles on DOAJ, it was

found that students' mathematical abilities were still low in a class level but there

were no results of research contained in ERIC or DOAJ that examined the

development of students' cognitive abilities significantly from class to next class.

Keywords : Rasch model, development of student abilities, mathematics abilities




165

IConMNS 172

Content analysis of mathematical basic competencies

P P Kurniawan, I G Suweken, and I G P Sudiarta



Abstract

This study aims to describe the suitability of Vocational Basic Competencies (KD)

Curriculum 2013 according to Perdirjen Dikdasmen No. 464 / D.D5 / KR / 2018

with Core Competencies (KI) and five mathematical process skills according to

NCTM. The method used in this study is to use a qualitative approach to the type of

content analysis research. The reason for using the content analysis method is that

researchers want to reveal the suitability of a set of Vocational KD based on the

2013 Curriculum with KI and mathematical process skills namely problem-solving,

reasoning and proof, connection, communication, and representation. The results of

the study show that the learning formulated to fulfill the KD corresponds to the KI

that students must have. All KD 3 (Knowledge) are formulated as minimal

competencies that correspond to the process of problem-solving, reasoning and

proof, and connection. Then the mathematical process skills correspond to

communication and representation are following KD 4 (Skills). Based on the results

of data analysis, it can be concluded that the Mathematical Basic Competence of

Vocational is corresponded to Core Competencies and five mathematical process

skills according to NCTM.

Keywords : core competencies, vocational basic competencies, five mathematical

process




166

IConMNS 175

Effectiveness of the creative problem solving learning model in mathematics

learning

R M V N Sari, I M Ardana, and G Suweken



Abstract

This writing aims to determine the Effectiveness of the Creative Problem Solving

Learning Model in Mathematics Learning. The method in this paper is to use content

analysis by taking 5 articles from https://eric.ed.gov and 13 articles from

https://scholar.google.com. Researchers took articles from these two sites because

they are world-famous sites about education and many people access them. The way

that can be done to analyze content is to record abstract content and compare it

between one article with another article. The articles observed came from five

countries, namely Indonesia, Malaysia, the State, Taiwan, and Mexico. The overall

data obtained consists of three types, namely: 1) Creative Problem Solving learning

model can improve students' creative thinking skills in mathematics compared to

conventional learning models, 2) Creative Problem Solving learning models can

improve mathematical problem solving skills compared to conventional learning

models, 3) Creative Problem Solving learning model can improve student

mathematics learning outcomes compared to conventional learning models.

Keywords : creative problem solving learning, CPS, mathematics




167

IConMNS 181

The effect of inquiry learning models in mathematics learning: a content

analysis

P W Srinivasa, I N Suparta, and I M Ardana



Abstract

This study aims to determine the effect of applying the inquiry learning model on

mathematics learning. The method of this research is content analysis by recording

abstract content from articles and comparing them between one article and another

article. The discussion in this study is limited to articles obtained from international

research sites, namely from https://eric.ed.gov/. This research took articles from this

site because this site is world-famous about education and many people access it.

Through the search for the keyword inquiry learning mathematics there are 1623

articles about inquiry learning models. From the first 50 articles observed on sites

originating from various continents including from the continent of Asia as many as

8 articles, continental Europe 5 articles, continental Australia 3 articles, continental

America 21 articles, and the rest not known (not available). In terms of the level of

education, there were 2 articles in pre-school research, 10 articles in elementary

school, 9 articles in junior high school, 4 articles in high school, 11 articles in

university, and several articles in all levels of education. Thus it can be concluded

that research on inquiry learning models spread to all continents and are present in

various levels of education. After analyzing the contents of the article, it was found

that 1) Inquiry learning model can improve the knowledge and teaching skills of

mathematics teachers; 2) Inquiry learning models can increase understanding of

knowledge mathematics and encourage students to conduct investigations; 3)

Inquiry learning models can also be collaborated with learning media and other

learning models; 4) Inquiry learning model can increase student confidence (Primus,

2017). From some of the descriptions above we can draw the conclusion that inquiry

learning models have a more positive influence on mathematics learning. So that

researchers suggest applying this learning model in learning at school. to suppress

the negative impacts that arise, the teacher plays a role in designing a good inquiry

learning model.

Keywords : inquiry learning models, mathematics, inquiry learning models in

mathematics




169

IConMNS 182

Constructivism analysis in mathematics learning education

K P Budarsini, I G P Suharta, and I W P Astawa



Abstract

In the world of education is not independent of the learning process. The expected

learning process takes place actively in accordance with the 21st century. Students

are expected to be more creative and active in participating in learning, so that a

strategy, approach or other aspects of learning are needed that can increase student

activity. One of them is the term constructivism. In this case, the number of studies

conducted on improving education especially mathematics with the application of

constructivism learning was analyzed through 40 academic articles consisting of

articles published in the Education Resources Information Center ( ERIC) database

by including 3 keywords namely " Constructivism for Mathematic , Constructivism

for Teaching Mathematic and Constructivism for Teaching and Learning

Mathematic " . The research approach is carried out qualitatively and quantitatively

according to the criteria determined and uses research methods, namely content

analysis. The results are presented in the frequency and percentage tables. As a

result of this study stand out that research kua ntitatif more likely using in

constructivism, most articles about constructivism using experimental methods and

at the college level. Hopefully this research will be useful for researchers who want

to learn about this problem.

Keywords : Constructivism, mathematics learning, ERIC database




170

IConMNS 183

Content analysis about mathematics learning that helped with technology

P G W Adnyana, I G P Suharta, and I W P Astawa



Abstract

This study is an analysis of the content of articles on technology-assisted

mathematics learning published in the ERIC (Education Resources Information

Center) database . This article aims to find out what technologies are used in

research published in the ERIC database related to mathematics learning. According

to the results of research obtained from the ERIC database, 40 articles were analyzed

because they were considered the most significant. It is obtained that the technology

that tends to be used in mathematics learning is geogebra software. It is also seen

that from year to year the application of technology in education is increasing,

research is more likely to use experimental methods with samples in the pre-service

period . From this article it is expected that mathematics learning will further

develop and use technology in learning.

Keywords : technology, ERIC database, mathematics learning




171

IConMNS 184

Implication of the application of project based learning (PjBL) in mathematics

N P Juniantari, I G P Sudiarta, and I G P Suharta



Abstract

Project Based Learning (PjBL) is a learning model that uses projects as the core of

learning. The purpose of this paper is to describe the effectiveness of applying

project-based learning models in mathematics. The method that used on this paper is

the method of content analysis. The results of the analysis show that the implications

of applying this model are quite varied. By pursuing the keywords "Project Based

Learning in Mathematics" 194,216 articles were found on the eric.ed.gov page.

After tracing the first 50 articles on the page, it was found that the application of

PjBL was effective in mathematics learning, one of which was statistics. In addition,

through the application of PjBL also has a positive impact on global concepts or

abstracts of mathematical self-efficacy and influences students' overall trust in their

ability to learn and do mathematics. Other research shows that PBL "can" encourage

student learning and may be more effective than traditional teaching in social

studies, science, mathematics, and literacy. However, other studies show that PjBL

can encourage student learning at a more limited level in mathematics and literacy.

From this, it is necessary to study further the limitations of applying PjBL within the

scope of mathematics and literacy.

Keywords : project, learning, mathematics




172

IConMNS 186

Application of blended learning in mathematics learning

N M A Wirdayanti, S Sariyasa, and I M Ardana



Abstract

The purpose of this study is to describe the effectiveness of the application of

blended learning in mathematics learning. The method used in compiling this

research is content analysis. Based on the results of the analysis showed quite varied

results in the world of education. By tracing the keywords "the application of

blended learning in mathematics learning" there are 5,029 articles found in ERIC.

The articles observed came from seven countries, namely China, Hong Kong, the

United States, India, Portugal, Indonesia and Ukraine. After tracing the first 20

articles, the results that have a positive impact have been obtained but some have no

impact. In the study of Wayan Suana, et al., Which stated there was no significant

difference between the control group and the experimental group in improving

overall learning outcomes between. In contrast to research from Chih-Lung who

found that mixed learning experiences benefited students in the experimental group

by having a positive effect not only on learning outcomes, but also on their attitudes

toward learning mathematics in a mixed learning environment.

Keywords : blended learning, mathematics learning, use of ICT, online learning




173

IConMNS 189

Effectiveness of treffinger learning model in mathematics learning

N P P Wulandari, S Sariyasa, and I N Suparta



[email protected]

Abstract

This study aims to determine the Effectiveness of Treffinger Learning Model in

Mathematics Learning. This research is Content Analysis research by taking 8

articles from https://eric.ed.gov and https://scholar.google.com. The way to analyze

the content is to record the contents of the abstract and compare it between one

article with another article. The data obtained from each article, namely: 1. The use

of treffinger models in mathematics learning can improve students' understanding of

concepts and mathematical dispositions; 2. Treffinger's learning model has a

significant effect on students 'critical thinking abilities and Treffinger's learning

model has a significant effect on students' creative thinking abilities; 3. The

improvement of literacy ability of students who learning with Treffinger model

learning is not significantly higher than students who were learned with

conventional learning; 4. There is an increase in students' creative thinking skills

after being applied; 5. Overall, the achievement and improvement of mathematical

communication skills of students who get Treffinger model learning is higher than

students who get conventional learning; 6. In overall achievement and enhancement

of the students’ communication skills in mathematics learning by using Treffinger

model were higher than those students who were taught by using conventional

model; 7. The results of the integration of Treffinger's model in learning

mathematics in junior high school to improve student creativity in mathematics

learning have an impact on the achievement of student learning outcomes in

mathematics as a whole; 8. Improvement in creative thinking skills of students who

obtain mathematics learning with the Treffinger learning model is higher than

students who obtain conventional learning.

Keywords : Treffinger model, education, mathematics




174

IConMNS 194

Effectiveness of collaborative learning on learning motivation and social

interactions

S Anjasmari, I G P Sudiarta, amd I W P Astawa



[email protected]

Abstract

This study aims to determine the Effectiveness of Collaborative Learning on

Learning Motivation and Social Interactions. This research is Content Analysis

research by taking 10 articles from https://eric.ed.gov. The researcher took articles

from this site because that is world-famous site about education and many people

access them. The way to analyze the content is to record the contents of the abstract

and compare it between one article with another articles. The articles observed came

from some countries, there are Los Angeles, Indonesia, Germany, USA, South

Africa, etc. The data obtained as a whole are of three types, there are: 1)

Collaborative learning can improve student learning motivation; 2) Collaborative

learning can improve students' social interaction skills; and 3) Collaborative learning

can improve both learning motivation and students' social interaction skills.

Keywords : collaborative learning, learning motivation, social interactions




175

IConMNS 198

Types of student errors in solving mathematical problems

N N Parwati, and I G P Suharta



Abstract

Students’ errors in solving mathematical problems will have an impact on the

achievement of their learning outcomes. The learning outcomes include the abilities

in: problem solving, reasoning and proof, communication, connections, and

representations. This literature study aims to describe the types of errors that

students do, especially those in the formal operational cognitive level (according to

Piaget), in performing mathematical problems and providing alternative solutions

for handling them. Before doing the learning activities, the types of errors that

students do in solve mathematical problems can be identified by providing

diagnostic tests. It is done in order to provide appropriate handling in implementing

further learning activities. The types of errors made by these students can be

classified into two, namely technical errors and substantial errors. Technical errors

include of errors in symbols, calculations, or algorithmic errors. Substantial errors

include of not understanding concepts and misconceptions. The mistake of not

understanding concept is not being able to proper planning and problem solving.

Misconceptions are errors made consistently in different contexts as a result of

errors in the student's cognitive structure. The only way to handle technical errors is

to train students to looking back for their final answers. A substantial errors that is

not understands concepts, done by providing remedial teaching or applies relevant

learning models. Misconception is done by making conceptual changes through

cognitive conflict strategies, i.e. creating a situation that is capable of destabilizing

the misconceptions of students (disequilibrium). The disequilibrium is based on an

awareness of the given situation, which is contradicted to the information that has

been stored in its cognitive structure.

Keywords : types of errors, misconceptions, cognitive conflict strategies



176

IConMNS 201

Development of folklore-based cartoons as geometry learning media for special

education students

I M Candiasa and N M S Mertasari



Abstract

Characteristics of students with special needs require special treatment, so that they

do not encounter many difficulties in learning. Especially for learning mathematics,

media is needed that is able to guide students from real and contextual conditions to

abstract conditions. Limitations that exist in schools and limitations on students

themselves do not allow to bring students to conditions that are really real and

contextual. Therefore, it is necessary to develop media in the form of models that

can represent real and contextual conditions and can be presented in class and not

harmful to children. This study tries to develop a cartoon animation film based on

folklore as a medium of learning geometry for students with special needs. Learning

material and character education are integrated in the form of cartoon animated films

that are contextualized to be relevant to the present education system and to today's

life. The development model applied is ADDIE (Analysis, Design, Develop,

Implementation, Evaluation). At present the development has only reached the

design stage. The resulting media design was evaluated by subject matter experts,

learning experts, and teachers using LORI (Learning Object Review Instrument)

developed by Vargo, Nesbit, Belfer, and Archambault (2003) and improved by

Nesbit and Li (2004). Discussion of evaluation results in focus group discussion

recommend that media design is feasible to be further developed into a prototype.

Experts also agree that contextualization must receive serious attention to increase

interest in learning. The animated cartoon film approach utilizes Information and

Communication Technology (ICT) which tends to be the lifestyle of today's children

which is expected to be able to arouse student learning motivation. Adoption of

folklore into animated cartoons can give students the experience to think in the age

of information technology, without having to leave the inherited local culture. Thus,

efforts to preserve culture and improve the quality of education can go hand in hand.

Keywords : special education, geometry, contextual, cartoon, folklore



177

IConMNS 215

Analysis of geometric misconceptions of grade 7th students in the concepts of

triangle and quadrilateral

A Bili, G Suweken, and I N Suparta



[email protected]

Abstract

This study aims to determine the causes of misconceptions that occur in students,

especially in understanding the concepts of triangles and quadrilateral concepts. The

research subjects were 32 students of Class 7th A. This research method is

descriptive qualitative by analyzing students' answers to the questions given. The

instruments in this study were written tests and interviews. The results of this study

indicate that misconceptions occur in students (1) Associative thinking, (2) Lack of

learning interest, (3) Intuitive thinking, (4) Incomplete / wrong reasoning, (5)

Student ability. Based on this research, it can be concluded the need to analyze the

results of student work to determine misconceptions experienced by students, so that

later students don't repeat the same mistakes.

Keywords : misconceptions, triangles, quadrilateral




178

IConMNS 224

The think talk write model in mathematics learning

I G A C Dewi


Abstract

This study aims to determine effect of Think Talk Write models in mathematics

learning. This research is Content Analysis research by taking 12 articles from



took articles from the two sites above because the two sites contain a lot of

education and are very easily accessible to the public. The way to analyze the

content is to record the contents of the abstract and compare it between one article

with another article. the articles observed came from Indonesia, the United States,

Singapore,and Turkey. The data obtained as a whole are of three types, namely: 1.

The Think Talk Write models can improve students achievement and mathematical

learning styles from junior high to tertary levels compared to conventional learning

models, 2. The Think Talk Write models can increase learning motivation compared

to conventional learning models 3. The Think Talk Write models can build and

solve open problems in mathematics learning. 4. The Think Talk Write models can

improve students' abilities and 5. The Think Talk Write models can improve spatial

reasoning and conceptual understanding

Keywords : the think talk write model, mathematics

179

Abstract Topic : Natural Science Education

IConMNS 54

The effectiveness of learning props in science learning

K Y L Parwata and A A I A R Sudiatmika



Abstract

Learning props are media used to help students learn more effectively and

efficiently. This study aimed to determine the effectiveness of learning props in

supporting the science learning process. Data was obtained through document

studies on 40 accredited articles that examined learning props, especially on science

education (Physics 65.85%, Chemistry 4.88%, Biology 29.27%). The learning props

in the articles consisted of innovative props developed (72.5%) and conventional

props available in schools (27.5%). The learning props in the articles were applied at

various levels of education, from elementary school to college. Based on data from

the analysis, the use of learning props 100% effective in supporting science learning,

characterized by an increase in student competence after the use of props in learning.

Competencies that can be developed through the use of learning props are

knowledge (53.3%), attitude (20%), skills (18.3%), mind-set (1.68%), metacognitive

(1.68%), creativity (1.68%), problem solving (1.68%), and motivation (1.68%).

Keywords : effectiveness, learning props, science learning



180

IConMNS 58

Analysis of science learning in implementation of full day school at SMP Negeri

2 Kuta

I G A A R Dewi, I N Suardana, and I B P Mardana



Abstract

This research aimed to describe and explain (1) the plan of science learning, (2) the

implementation of science learning, and (3) the evaluation of science learning in

implementation of Full Day School related to the intracurricular, co curricular, and

extracurricular aspects. This research was qualitative research. Subject involved in

this research was Headmaster, Vice Principal of Curriculum, Vice Principal of

Infrastructure, Vice Principal of Students Affairs, science teachers and students of

VII and VIII classes at SMP Negeri 2 Kuta. Data collection techniques used were

document study, observation, and interview. The results of this research revealed

that: (1) the lesson plans made by science teachers were optimal use of scientific

approach in accordance with Permendikbud RI Nomor 103 Tahun 2014 in

intracurricular aspect but they did not have plan related to co curricular aspect.

Teacher made plans of physics and biology material related to extracurricular aspect;

(2) Teachers already implemented of scientific approach but not optimal in

intracurricular aspect. It is because students rarely ask questions lead to the context

and content of learning. Related to co curricular aspect, teachers give tasks to the

students after the class. Teacher asked to the students to solve the problem and

collect it to the teacher. Related to extracurricular aspect, teachers explain about

material of physics and biology to the students and asked to solve the questions that

made by teachers. (3) The evaluation of students achieves standard accordance to

Permendikbud RI Nomor 104 Tahun 2014 for intracurricular aspect. The evaluation

for co curricular aspect, teachers combine the evaluation of students with the

intracurricular aspect. The evaluation of students for extracurricular aspect achieve

standard.

Keywords : science learning, full day school, junior high school





181

IConMNS 73

Supervision of principal in science learning at SMPN Satap (Satu Atap) 1

Tembuku

I W Winarsa, I W Subagia, and N L P M Widiyanti



Abstract

The main purpose of this research was to explain and describe the supervision of

principal towards the learning process in science learning at Sekolah Menengah

Pertama Negeri Satap (Satu Atap) 1 Tembuku. This research is a descriptive

qualitative research that reveals the supervision process of the principal. Data was

taken by interview technique. The source triangulation technique is carried out to

obtain the validity of data. Interviews were conducted with principals and science

teacher. The results of the study showed that the supervision of principal towards the

learning planning process was carried out by observing and assessing the

administrative completeness and also organize a workshop. Supervision of learning

process is done by visiting class to observe the learning activities. Supervision of the

assessment process is carried out by confirmation and guiding the determination of

minimum completeness criteria for each lesson at the beginning. Principal

supervision has been optimally. The kind of supporting factor for supervision is an

agreement for planning documents legalized by one basic competence. The different

expertise between teacher and principal in terms of subjects are the kind of bad

factor in the supervision.

Keywords : supervision, science learning, principal





182

IConMNS 75

The development of student worksheet on science subject SMK based on

internet learning resources to improve learning outcomes

M S Prajnitya, I W Subagia, and D M Citrawathi



Abstract

This research aims to: (1) describe and explain the characteristic of the Student

Worksheet (LKS) on Science subject SMK based on internet learning resources; (2)

describe and explain the validity of Student Worksheet (LKS) on Science subject

SMK based on internet learning resources; (3) describe and explain the practicality

of Student Worksheet (LKS) on Science subject SMK based on internet learning

resources; (4) describe and explain effectivity of Student Worksheet (LKS) on

Science subject SMK based on internet learning resources. This type of research is a

research and development. The development model used in this research is the

modified development model of Borg and Gall. The stages of research are: (1) needs

analysis; (2) product planning; (3) product development; (4) product validation; (5)

product revision 1; (6) practicality test; (7) product revision 2; (8) initial field test;

and (9) final product revisions. The Student Worksheet developed consists of five

topics. The content validity of the Student Worksheet was carried out by involving

two experts and four practitioners. Language validity on Student Worksheets is

carried out by involving one linguist. The characteristics of student worksheets in

vocational science based subjects of internet learning resources are (1) in each LKS

consisting of contextual phenomena that direct students to identify problems; (2) In

each LKS consists of conceptual questions; and (3) Every answer to the question in

each LKS is obtained from the internet learning resources.

Keywords : student worksheets, internet learning resources, validity





183

IConMNS 76

The effect of problem based learning model toward formal reasoning ability

and science process skills of junior high school

N L G S Pratiwi, W Suastra, and S Maryam



[email protected]

Abstract

This research is aimed to analyze the differences: (1) Formal Reasoning Ability and

Science Process Skills, (2) Formal Reasoning Ability, and (3) Science Process Skills

between the students learning with Problem Based Learning and Direct Instruction.

The focus of this research problem is the effect of problem based learning to the

formal reasoning ability and science process skills. This research was quasi

experiment with Posttest Non-equivalent Control Group Design. The population was

the student of class VIIIA, VIIIB, VIIIC, VIIID, VIIIE, VIIIF VIIIG VIIIH and VIII

I of SMP Negeri 1 Gerokgak in the academic year 2019/2010. The number of the

population was 288 students. The sample in this research is class VIIIB and VIIIC

selected by random sampling. Data obtained, then analyzed with descriptive

statistics and MANOVA. As a MANOVA follow-up, we used the mean value

significance test between the groups using Least Significant Diverence (LSD), to

test the significance of the difference in mean scores for each treatment group.

Keywords : problem based learning, science process skills, reasoning ability





184

IConMNS 81

The validity and practically test of chemistry learning devices

K W Suwadarma, A A I A R Sudiatmika, and I W Suja



[email protected]

Abstract

The purpose of this research was to produce the valid and practical learning device

using STEM-PJBL to be applied in the chemistry class of Senior High School. The

Research was conducted based on the steps of development research according to

Borg and Gall. The students of the research included lesson plan, student worksheet,

teaching material and evaluation instrument; while the objects of the research were

validity and practically of the learning devices themselves. The research was

conducted at SMA Negeri 1 Kuta Selatan in March to April 2019, by involving the

XI grade science students as the research population. The data retrieval used validity

sheet that was taken by the expert, readability test sheet by teachers and students and

students response questionaire about the learning process. The result of the research

showed the content of lesson plan as 1, student worksheet as 0,875; material text as

0,80 and evaluation instrument as 0,97; so that all were categorized as valid. The

practically score based on the readability of lesson plan as 3,78; student worksheet

as 3,68; material text as 3,83; and evaluation instrument as 3,64 ; all were

categorized very practical. The practically score of learning device based on the

students' responses during the learning process on initial field test was 4,59 (very

practical) and on the main field test was 4,24 (very practical). Therefore, the STEM-

PJBL produced in this research was categorized as very valid and very practical.

Keywords : learning devices, STEM-PJBL model, chemistry





185

IConMNS 88

The effect of free inquiry learning model on the students’ science learning

outcomes of junior high school students reviewed from critical thinking skill

W Kusuma, W Suastra, and K Sudiana



[email protected]

Abstract

This study aims at (1) describing and explaining the effect of free inquiry learning

model on Junior High School science learning outcomes in terms of critical thinking

skills. This research was conducted at SMP Negeri 1 Singaraja, academic year

2018/2019 with the population of grade VIII students. The sample of this study was

class VIII A6 as an experimental group and class VIII A8 as a control group which

consisted of 62 students. The type of this research is quasi-experimental with a study

design using nonequivalent pretest-posttest control group design. The data obtained

were analyzed by a two-way Analysis of Variance (ANAVA) and then followed by

Tukey test. The results of this research showed that: (1) there were significant

differences in science learning outcomes between groups of students who studied

through free inquiry learning model and direct instruction model; (2) there was an

influence of the interaction between the learning model and critical thinking skills

on science learning outcomes; (3) there were differences in science learning

outcomes between students who studied through free inquiry learning model and

direct instruction model to students who had high critical thinking skills; (4) there

were differences in science learning outcomes between students who studied

through free inquiry learning model and direct instruction model to students who

high critical thinking skills.

Keywords : free inquiry, learning outcomes, critical thinking skills





186

IConMNS 103

Implementation of the inquiry learning model to improve students’ learning

achievement at SMP LAB Undiksha

N M Pujani, M Resika, and P A M Giri



Abstract

The aim of this study was to improve students' learning achievement and describe

the students' responses toward the inquiry learning model implementation. This

study was action research which was conducted in two cycles. The Subjects were

student class VII.1 at SMP Lab Undiksha in academic year 2018/2019, which

consist of 21 pupils. Data collected by tests and questionnaires, then analyzed by

descriptive statistics. The result shows that there was an improvement in student’s

learning achievement from the first cycle (M1 = 61,0, SD1 = 9,6 with sufficient

categorized) to the second cycle (M2 = 71,4; SD2= 6,6; good categorized) and

students' responses to the implementation of inquiry learning model are positive.

Keywords : action research, the inquiry learning model, students’ learning

achievement





187

IConMNS 104

Integrative health thematic strategy increases learning outcomes and students’

clean and healthy living

I K Sudiana, N Adiputra, and P B Adnyana



Abstract

The aim of this study was to improve the student learning outcomes and improve

clean and healthy living behaviors (PHBS). This goal achieved through the

integration of health education into the themes of learning that implemented through

an integrative health thematic strategy (STIK). The study design was an

experimental randomized pretest-posttest control group design. The study conducted

in two classes, first class as a Control Group taught with Conventional Strategy that

use 2013 Curriculum Integrated Thematic Book, and second class as a Treatment

Group taught with STIK that use an integrative health thematic textbook (BATIK).

The data analyzed by Multivariate Analysis of Variances at five percent significance

level. Based on the results of the data analysis, it was evident that STIK improved

the learning outcomes. Thematic knowledge by 16.6 percent, PHBS knowledge by

71.7 percent, PHBS attitudes by 70.5 percent and PHBS practice by 10.8 percent.

The conclusion of this study was the integration of health education into themes of

learning to improve student learning outcomes and clean and healthy living

behaviors (PHBS). The implication of the results of this study was STIK can be

recommended as an alternative learning strategy that improved learning outcomes

and provide health education to students.

Keywords : integration, health education, learning outcomes





188

IConMNS 197

Improving student’s abilities in scientific reasoning and scientific literacy

through guided inquiry

E Yulianti1, V R Mustikasari

1, E Hamimi

1 N F A Rahman

2, and L F Nurjanah

1

1Universitas Negeri Malang,

2Universiti Teknologi Malaysia

[email protected]

Abstract

In efforts of educating students to effectively learn science, for example physics, the

abilities of scientific reasoning and scientific literacy should go hand in hand. To

achieve that goal, appropriate models, e.g. guided inquiry must be implemented

since it provides students attain new knowledge based on their scientific reasoning

and scientific literacy skills under teachers’s supervision. This paper explores in-

depth analysis of 60 junior high school students’s literacy skill levels and scientific

reasoning abilities when they learn one of the most challenging topics in physics, i.e.

pressure. The guided inquiry was well prepared and implemented in their classroom

learning. The pretest and postest results using two-tier multiple choice questions,

with high reability, were analysed based on the scientific literacy and scientific

reasoning indicators. Quantitative study including the N-gain and d¬-effect size

were calculated. Furthermore, direct observation with detailed rubrics was also

conducted during the teaching and learning processes for qualitative evaluation. As

the conclusion, both qualitative and quantitative analyses confirmed that the guided

inquiry model gives rise to student's abilities in scientific reasoning and scientific

literacy.

Keywords : guided inquiry, scientific literacy, scientific reasoning, pressure


189

IConMNS 204

Development of local wisdom-based learning material for the science

instruction in Junior High School

I W S Warpala


[email protected]

Abstract

This research aims to give contribution in improving education quality, especially

for the science instruction in junior high school level through development of local

wisdom-based learning material. The learning material that has been developed

consists of content learning material, instructional procedure, and assessment

method. Data have been collected by questioner, interview, observation, validation

sheet, and documentations study. Data were analyzed descriptively and compared

with the existing criteria. The result show that the learning material has been

developed gives positive contribution for improving concept understanding and

students’ scientific skill. Besides that, it has been obtained the contextual-based

learning material that valid, practice, and effective to support the science teaching

learning process.

Keywords : science learning material, science instruction, local wisdom


190

IConMNS 220 The development of blended learning model for graduate student at science

education program

A A I A R Sudiatmika, I W Subagia, and K Suma

Universitas Pendidikan Ganesha [email protected], [email protected], [email protected]

Abstract

This study aimed to develop blended learning model which is valid and practical.

The development of this model using modified four steps consisting of: 1)

preliminary study, 2) setting objectives, 3) design and development and 4) limited

trials. This study was carried out until the limited trial phase and obtained a

prototype model which is ready to be implemented.

The validity of blended learning model was measured from the content validity and

construct validity. The validity of the contents can be seen from the suitability of

this developed model with supporting theory. The practicality of this model was

measured by the feasibility of the model in classroom learning. The practicality data

of the developed model was obtained from the results of the student questionnaire

responses to the developed model. The content and construct validity of the model

that has been developed is very valid. The average blended learning model which

implemented was practical. Based on the results of this study it can be conclude that

the quality of the development of the blended learning model was valid in terms of

content and construct, as well as practical.

Keywords : learning model, blended learning, prototype model

mailto:[email protected],



191

Abstract Topic : Physics

IConMNS 06

Analysis of 2x2 array curve microstripline antenna in L-band frequency for

radar application

P Artawan1 and Y H Pramono

2


2 Institut Teknologi Sepuluh Nopember


Abstract

This research an analysis of 2x2 array curve microstripline antenna was conducted.

Antenna fabrication had been done by using FR4 with UV photoresist laminate

method. Measurement results with the Network Analyzer showed the antenna

parameter values, namely: VSWR = 1.14, Reflection coefficient = 0.07, Return Loss

= -18.86dB, Gain = 5.27dB in linear polarization pattern. The measurement results

showed that the curve microstripline antenna could be applied to the Radar

communication system

Keywords : curve microstripline, array, radar communication



192

IConMNS 08

Criticality analysis of Kartini reactor by inserting of thorium fuel element

(ThO2)

M Salam and S Syarip

National Nuclear Energy Agency of Indonesia (BATAN)


Abstract

The criticality analysis of Kartini reactor by inserting of Thorium dioxide (ThO2)

fuel element has been done. The main objective of this research is to observe the

changing of criticality level in reactor by inserting ThO2 fuels element. This analysis

is performed by using MCNP computer code. The criticality analysis was performed

by inserting a ThO2 fuel element of several different masses in the reactor core. In

addition, the ThO2 element was inserted in the several different positions from ring

B to Ring F of the reactor core. The result shows that in the general, by inserting the

thorium elements on the reactor core will generate a smaller k-inf. It is because

thorium will produce a negative reactivity in the reactor core. This analysis result

shows that the reactor is on the subcritical level (k-inf. < 1) when 3000 g of ThO2 is

inserted in the ring B, C and D. Meanwhile, it still on the critical level when ThO2

element is inserted in the ring E and F. However, to ensure the safety of the Kartini

reactor during this experiment, it is necessary to calculate the shutdown margin

(SDM) and also radial pin peaking. The analysis shows that the calculated SDM is

2.5 $ and the radial pin peaking is 1.5. These values still meet the required value for

the Kartini reactor i.e. SDM should be higher than 0.5 $ and the radial pin peaking

should be lower than 1.75.

Keywords : criticality, ThO2, k-inf



193

IConMNS 11

Performance test analysis of neutron detectors for instrumentation & control

system of CAMOLYP reactor

S Syarip1, P I Wahyono

1, Mahrus S

1, and T C Rahayu

2

1 National Nuclear Energy Agency (BATAN),

2 Nuclear Engineering Department,

Faculty of Engineering University of Gadjah Mada


[email protected]

Abstract

The efficiency and sensitivity analysis or performance test of neutron detectors to be

used for instrumentation & control system of critical assembly for molly-99 isotope

production (CAMOLYP) reactor have been done. The performance test of neutron

detector system is important especially in measuring the initial flux of CAMOLYP

reactor. Neutron detector type to be used consists of fission chamber (FC) and

compensated ionization chamber (CIC) types. The method used is measurement of

neutron count rate of neutron detectors using isotopic neutron source strength and

neutron flux at certain distance from Kartini reactor core, and compared it with Au-

197 foil activation or neutron activation analysis (NAA) method. The result shows

that the efficiency and sensitivity of FC neutron detector were 0,113% and 0,012

cps/nv respectively. The efficiency and sensitivity were determined by comparing

the detector output current with power linear channel output current and neutron flux

in certain distance from Kartini reactor core. Whiles, the measured efficiency and

sensitivity of CIC neutron detector were 7, 63% and 1,115.E-14 A/nv respectively.

Both neutron detectors were still in good performance compared with similar

neutron detector types. The analysis result was also shown that CIC neutron detector

is more sensitive at higher neutron flux while FC detector is more sensitive for lower

neutron flux level, the phenomena were in good accordance with theoretical basis.

Keywords : CAMOLYP, critical assembly, neutron detector, instrumentation, test





194

IConMNS 153

Analysis of insulation ability of partition room compartment

D O Rachmawati, I G A Gunadi, and N K Rapi



[email protected]

Abstract

Noise is an unwanted sound and disturbs the comfort of the listener. Noise can be

caused due to compartment space partitions. In the Department of Physics Education

at the University of Ganesha, there are several compartment spaces with various

partitions. The partitions used have not been able to insulate sound optimally.

Disorders of loss of concentration are often felt and have an impact on the

performance of the lecturer. The combination of partitioning material determines the

ability of the partition to insulate sound. This study analyzes the level of sound

insulation of compartment space partitions in the lecturer room, laboratory

coordinator room and study program coordinator room of the Department of

Physics. Data were analyzed by SRI (Sound Reduction Index) and STC ( Sound

Transmission Class ). Partisi ruang dosen terdiri dari kombinasi pintu kayu lapis

ganda, dinding bata plester dua sisi, dinding kaca, dan ventilasi kayu. Bagian dari

ruang koordinator laboratorium terdiri dari kombinasi dinding bata plester dua sisi,

dinding kaca dan ventilasi kayu. Dan partisi ruang koordinator program studi terdiri

dari kayu lapis ganda. The total area of the partition in each room is 7.68 m2, 10.50

m2 and 12.00 m2. The level of noise that can be muted by partitions in the lecturer

room, laboratory coordinator room and study program coordinator room is shown by

SRI values, respectively 20.83 dB, 20.27 dB, and 26.90 dB. The effectiveness of

sound insulation on the lecture room partition is indicated by the STC value of 25.75

dB. STC in the laboratory coordinator room is 26.07 db, and the laboratory

coordinator room is 27.29 dB.

Keywords : noise, room partition, sound reduction index, sound transmission class




195

IConMNS 192

Crystalline phase stability of alumina reinforced natural silica sand composites

under heat cycling treatment and its potential for fuel-cell seal materials

N Hidayat1, M A Baqiya

2, A Taufiq

1, S Sunaryono

1 , T Triwikantoro

2 and S Pratapa

2


2 Institut Teknologi Sepuluh November

[email protected]

Abstract

As excellent alternatives for cleaner energy production evaluated against

conventional nonrenewable energy sources, fuel-cells have now been commercially

viable. However, efforts to improve their efficiency are always important. By virtue

of high temperature and sandwich model of fuel-cells, sealing materials plays a

crucial role to prevent air leakage and entirely lock the hydrogen inside to achieve

high efficiency. In this study, we report the phase stability of alumina/natural silica

sand composites under heat cycling treatment within the fuel-cells working

temperatures. The composites, containing commercial alumina and silica from

Indonesian silica sand, were prepared using simple solid state reaction approach. X-

ray diffraction data collection and analysis were performed to check the phase

formation of the compact ceramic composites. The detailed phase formation of the

ceramic after sintering at 1150 °C was reported elsewhere, here we focus on the

composites’s phase stability under heat treatment for several times. As the results,

the phase content in the composites remain unchanged. This stable characteristic

also apply to the density-porosity behaviors and the calculated coefficient of thermal

expansion of the composites. Therefore, alumina/natural silica sand composites can

be proposed as fuel-cell seal materials.

Keywords : alumina, silica sand, heat cycling treatment, crystalline phase stability


196

Abstract Topic : Physics Education

IConMNS 20

Effect of problem based learning model on problem solving ability and critical

thinking ability of class VIII students in science subjects at SMPN 1 Singaraja

P Clarissa, N Suardana, and N Wijana



Abstract

This study aimed to describe and explain the effect of the Problem Based Learning

(PBL) model on students' problem solving and critical thinking skills. The study

used a quasi-experimental research method with a non-equivalent pre-test post-test

control group design. The population of the eighth grade students of SMP N 1

Singaraja were 222 students. The research sample was taken 2 classes using cluster

random sampling techniques, namely Eighth grade A3 as the experimental class and

Eighth grade A4 as the control class. Data collection used tests of problem solving

abilities and critical thinking skills. the data were analyzed using MANCOVA

(Multicovariate Analysis of Variance) with a significance level of 5%. The results of

the study showed that there are differences in problem solving abilities and

simultaneous critical thinking skills between students who follow the Problem Based

Learning (PBL) model and students who follow the Guided Discovery Learning

(GDL) model. There are differences in problem solving skills between students who

follow the PBL learning model and students who follow the GDL learning model.

There are differences in critical thinking skills between students who follow the PBL

model and students who follow the GDL model. The average score of problem

solving ability in PBL is higher, namely 83.06 compare to the average score of

problem solving ability on GDL, which is 74.34. The average score of critical

thinking skills in PBL is higher at 82.56 compare to the average score of critical

thinking skills on GDL, which is 73.28.

Keywords : problem based learning, problem solving, critical thinking




197

IConMNS 40

The Effect of activity and conceptual change the effect of activity and

conceptual change text-based module on students’ conceptions of direct current

ectricity text-based module on students’ conceptions of direct current ectricity

K Suma, N M Pujani, and N K Rapi



Abstract

This quasi-experimental study aims to investigate the effect of activity and

conceptual change text-based modules on students' conceptions of direct current

electricity. A total of 335 students were included as research subjects divided into

165 experimental groups and 170 control groups. The experimental group received

learning facilitated with activity and conceptual change texts based module, while

the control group gained learning facilitated by conventional texts. Data on student

conceptions were collected by the Three-Tier Electricity Test. Students' responses to

this test are categorized into scientific knowledge, misconceptions, lack of

knowledge, and errors. The difference in the level of conception of students was

analyzed by ANACOVA technique. The results showed that there were significant

differences in the level of conception of students between the experimental group

and the control group. Learning facilitated by activity and conceptual change texts-

based module effectively increases the level of scientific knowledge and reduces the

level of misconceptions, lack of knowledge and errors in direct current electricity

Keywords : scientific knowledge, misconception, lack of knowledge, error




198

IConMNS 45

The effect of self-efficacy, achievement motivation, and study habits to science

literacy at junior high school students

I G S Wiarsana, I W Sadia, and I B P Arnyana



[email protected]

Abstract

This study aimed to describe and explain the effect of self-efficacy, achievement

motivation, and study habits to science literacy at junior high school students. This

type of study is a quantitave with ex-post facto design. This study was conducted at

SMP Negeri 1 Denpasar, SMP Negeri 4 Denpasar, SMP Negeri 5 Denpasar, SMP

Negeri 7 Denpasar, SMP Negeri 10 Denpasar, and SMP Negeri 11 Denpasar. The

total population in this study was 3880 students. The selection of school samples is

determined by regional sample techniques while the selection of research samples in

each school is determined by proportional random sampling technique. The research

sample used was 410 students. Self-efficacy questionnaire, achievement motivation

questionnaire, study habits questionnaire, and science literacy test were used to

collect the data. The data was analysed by descriptive analyses and hypotheses was

tested by path analyses. The results showed that there were: (1) direct effect of self

efficacy on science literacy of class VIII IPA students with a direct effect coefficient

of 0.345, (2) direct effect of self efficacy through achievement motivation on science

literacy class VIII IPA students with an indirect effect coefficient of 0,130, (3)

indirect effect of self efficacy through study habits on science literacy of class VIII

IPA students with an indirect effect coefficient of 0,286, (4) indirect effect of self

efficacy through achievement motivation and study habits on science literacy of

class VIII IPA students with an indirect effect coefficient of 0.139, (5) direct effect

of achievement motivation on literacy of class VIII IPA students with a direct effect

coefficient of 0.165, (6) indirect effect of achievement motivation through study

habits on science literacy of class VIII IPA with an indirect effect of 0.176, (7)

direct effect of study habits on science literacy class VIII IPA with a direct effect

coefficient of 0.489.

Keywords : self-efficacy, achievement motivation, study habits, science literacy




199

IConMNS 56

The effect of community and environment technological science learning model

(STML) on the students’ critical thinking skill and learning achievement

D A P D O Lestari, K Suma, and I W Suja



Abstract

The purpose of this study is to find out and describe the differences in critical

thinking skills and student learning outcomes between groups of students who study

with the learning model of Community and Environmental Technology (STML)

Science compared to groups of students who study with the direct learning model

(DI). This type of research is a quasi experiment with a pretest-posttest

nonequivalent control group design. The population in this study were all class VIII

students of SMPN 1 Banjarangkan which amounted to 307 students divided into ten

classes. Samples were taken using simple random sampling technique to the class so

that two experimental classes were obtained (VIII 1 and VIII 7) and two control

classes (VIII 2 and VIII 7). The experimental class is given treatment with the

STML learning model and the control class given the DI learning treatment. Data

was collected using instruments in the form of tests of critical thinking skills and

learning outcomes. Data were analyzed by descriptive analysis and the hypothesis

was tested by the Manova technique. Hasil gain score ternormalisasi keterampilan

berpikir kritis dan hasil belajar siswa yang dibelajarkan dengan pembelajaran STML

lebih tinggi dibandingkan dengan siswa yang dibelajarkan dengan pembelajaran DI.

The results showed that: (1) There were differences in critical thinking skills and

student learning outcomes between groups of students who studied with the STML

model compared to the DI model (F = 49.78; p <0.05). (2) There are differences in

critical thinking skills between groups of students studying with the STML model

compared to the DI model (F = 45.31; p <0.05; LSD = 0.08). (3) There are

differences in student learning outcomes between groups of students studying with

the STML model compared to the DI model (F = 55.28; p <0.05; LSD = 0.06).

Keywords : community and environment technological science learning model

(STML), critical thinking skills, learning outcomes





200

IConMNS 63

Development of physics learning device based Science Technology Society

(STS) learning model to improve scientific attitude and students’

understanding concept of X grade high school

I G A C K Dewi, I W Sadia, and I B N Sudria



[email protected]

Abstract

This research is the development of physics learning device based on the learning

model of Science Technology Society (STS) which is conducted as an effort to

overcome the problems of physics learning in high schools. This research aimed to

produce learning device in the form of student book and teacher handbook on

momentum and impulse materials that fulfilled of valid, practical, and effective

criteria.

The development of this learning device used 4-D model consisting of four main

stages, as follows: define, design, develop, and disseminate. The device

development was only carried out until the develop stage. The results data included

the result of requirement analysis, product planning, validity, practicality, and

effectiveness of the device. The research results were obtained (1) the learning

device developed presenting issues related to momentum and impulse materials, (2)

the validity of the student book is evaluated with very valid category and the validity

of teacher handbook is evaluated with valid category. (3) the result of practicality

was measured from the implementation of learning device, teachers’ response, and

students’ responses with very practical category, (4) developed device effectively

improve scientific attitude and students’ understanding concept.

Based on the findings of this study, the researcher concluded that learning device

fulfilled valid criteria, practical, and effective in improving scientific attitude and

students’ understanding concept, so it can be used in wider scope.

Keywords : physics learning device, science technology society (STS), scientific

attitude, understanding concept




201

IConMNS 89

The effectiveness of problem-based interactive physics e-modul to improve

critical thinking skills in senior high school students

R Sujanem, I N P Suwindra, and I Suswandi



Abstract

This study aimed at analyzing the effectiveness of an interactive physics e-module

(IPEM) to improve students’ critical thinking skills (CTS). IPEM is a module that

contains unstructured problems, physics phenomena, concepts that contain CTS,

animations, videos, examples and CTS problems. This IPEM was presented in the

blended problem-based learning (BPBL) model. The population consisted of all

tenth grade students at SMAN 2 and SMAN 4 Singaraja and classes X1 and X4 in

SMAN 2 Singaraja and SMAN 4 Singaraja were selected as the sample by using a

random sampling technique. The study used a quasi-experiment one group pre-test

and post-test design. Before the lesson was taught by using IPEM, the students were

given a CTS pretest. At the end of the lesson, they were given the same test (post-

test). The data were analyzed using t-test. The result showed that the mean for CTS

of the experiment class was 59.1, falling into a good category, and the mean for CTS

of the control class was 54.3, falling into a medium category. The t-test result

showed that there was a significant difference in the students’ CTS. The CTC of the

students who learned through IPEM was better than that of those who learned

through the conventional model. Hence, IPEM in the BPBL model is effective to

improve the CTS of high school students.

Keywords : critical thinking skills, interactive physics e-module (IPEM), problem-

based learning





202

IConMNS 107

The implementation of 7E learning cycle model in improving the social attitude

and physics learning achievement of the XI MIPA 3 class students in the

academic year 2018/2019

I M T P Putra, I W Suastra, and A A I A R Sudiatmika



Abstract

This study aimed at improving social attitude and physics learning achievement of

the students of XI MIPA 3 class of SMAN 3 Singaraja through the implementation

of 7E learning cycle model. The type of this research was Classroom Action

Research. The research subjects were 33 students of XI MIPA 3 class. The object of

this research was the 7E learning cycle model, social attitude, learning achievement,

and students’ responses. The research instruments were social attitude observation

sheets, social attitude questionnaires, learning achievement tests, and students’

responses questionnaires. The data was analyzed descriptively quantitatively. The

results of the study showed that (1) There was an increase in social attitude based on

observation (in the first cycle, the obtained score was 57.59, while in the second

cycle the obtained score was 62.28). There was an increase in social attitude based

on the questionnaire (in the first cycle, the obtained score was 112.64, while in the

second cycle the obtained score was 120.67). (2) In the first cylce, the students’

learning achievement had not reached the research success criteria (X = 72.88, SD =

9.44, KK = 54.55%), while in the second cycle it reached the research success

criteria (X = 82.42, SD = 7.815, KK = 87.88%). (3) Students’ responses toward the

learning cycle model were highly positive (X =80.76). The conclusion of this study

showed that the implementation of 7E learning cycle model was able to improve

students’ social attitude and physics learning achievement in XI MIPA 3 class of

SMAN 3 Singaraja.

Keywords : learning achievement, social attitudes, 7E learning cycle





203

IConMNS 108

Development of problem-based physics learning module to improve students

critical thinking ability

T P Aditya, R I L Dewi, N M D M Permana, K Suma, and I G A Gunadi




[email protected]

Abstract

The aim of this study was to produce a physics module based on problem to improve

student critical thinking ability in physics learning. The subject of the module

concerning sound and light wave. Basic competencies and indicators used in

accordance with curriculum 2013 and syllabus that applied at the Negera 1 senior

high school. This study was Research and Development based on Santyasa design is

called AM3PU3 model. Critical thinking ability test tried for all of the grade XI

students consisting of 104 students at Seririt 1 senior high school. The field test tried

for 35 students grade XI MIA 6 Negara 1 senior high school. This study used one

group pre-post test design. The subject of this study was 2 media expert, 2 content

expert, 2 design expert, 10 physics teachers as practitioners, 1 field test physic

teacher, student of XI MIA 6 Negara 1 senior high school consisting of 35 students,

9 students of small group test, and 3 students of individual trial test. Data of this

study were obtained by using questionnaire and test of critical thinking. The results

of this study reveal first, the module is valid due to: a) very good qualified by the

media and content experts, b) the average score of design expert is 239 points (very

good qualified), c) the practitioners teacher test stated that module is good qualified

with an average score of 161,5, d) the individual trial test stated that module is very

good qualified with an average score of 164, e). the small group test stated that

module is good qualified with an average score of 159,7. Second, the module is

stated as practically due to: a) the response of teachers is good qualified with an

average score of 45, b) the response of students is good qualified with an average

score of 70,14, c) the test of module implementation stated that module is good

qualified with an average score of 44,75. Third, the module is stated effectively by

the result of t-test > t-table (t-test of the sound and light wave subject is 33,58, t-

table = 2,05), so the Ha is accepted and H0 is rejected. Ha is stated that there are

differences of problem critical thinking of the student after the module is applied.

The average score of the post test is 89,01 for the sound and light wave subject, the

scores are greater than the minimum criteria of mastery learning score for physics

subject in Negara 1 senior high school.

Keywords : module, PBL, critical thinking ability







204

IConMNS 174

Website-Based multimedia development as learning media in wave and sound

vibration material to increase motivation and learning achievement of class

VIII students of SMP Negeri 7 Denpasar

N P D Masyuni, K Suma, and I D K Sastrawidana



Abstract

This study purpose to produce a product in the form of a multimedia-based website

as a learning media that is valid, practical and effective to improve student learning

outcomes and motivation. This website was developed with a 4-D development

design. This research design consists of four stages, namely 1) Define, 2) Design, 3)

Develop, and 4) disseminate. The data collected in this study are product validity

test data based on the instrument validity, practicality test data based on practicality

test instruments, and effectiveness test data based on the results of the posttest of

students in class VIII-1 and VIII-2 Denpasar Public Middle School. The results of

this study produce products based on multimedia as learning media. (1) Expert

validity of multimedia-based websites as learning media obtained results, experts

filled 0.9 with very valid categories, media experts 0.72 were categorized as valid,

and design experts 0.84 were categorized as very valid. (2) the practicality of

multimedia-based websites in terms of 3 things: readability with a score of 4.42 with

a very practical category, teacher response score of 4.55 categories very practical,

small group student responses score 4.12 practical categories (3) website-based

effectiveness multimedia is reviewed through student learning outcomes with an

average score of 86.6 greater than the KKM value found in SMP Negeri 7 Denpasar

which is 77. Based on the learning outcomes data obtained it can be concluded that

the application of multimedia-based websites as learning media can improve

learning outcomes .

Keywords : multimedia-based website, learning media, motivation, learning

achievement




205

IConMNS 200

Analysis scientific literacy students on substance pressure

L F Nurjanah1, V R Mustikasari

1 E Yulianti

1, N Pratiwi

1, I W Sumberartha

1, and F A

Phang2


2Universiti Teknologi Malaysia

[email protected]

Abstract

Science literacy is the ability to apply understanding of scientific knowledge in real

life. Science literacy needs to be a benchmark of knowledge in the 21st century. This

study aims to analyze the scientific literacy skills of middle school students in

science subjects in matter of substance pressure. The instrument used to measure

scientific literacy skills in this study was 10 multiple choice questions developed by

Novanti et al. (2017) with reliability of 0.829 which is included in the high category.

Questions are prepared based on level 1-5 PISA science literacy level indicators.

Respondents of this study were grade 9 junior high school students with 60 students.

The results showed that the percentage of students' literacy skills at level 1 was

86.67%; level 2 83.33%; level 3 58.83%; level 4 81.67%; and level 5 43.33%.

Achievement of the highest scientific literacy skills of students is at level 1 and the

lowest achievement is at level 5. These results have an impact on the planning,

process, and evaluation of science learning carried out later.

Keywords : analysis, scientific literacy, substance pressure


206

IConMNS 211

Problem-based flipped classroom learning in achieving critical thinking, social

attitudes, and spiritual attitudes of SMA’ students in learning physics

I W Santyasa, G S Santyadiputra, and M Juniantari


[email protected]

Abstract

Learning physics in SMA which is usually carried out using the direct instruction

(DI) model and only relying on face-to-face meetings in class is one of the causes of

the suboptimal growth of students' critical thinking. To accommodate the

development of students' critical thinking, learning physics should provide

opportunities for students to collaboratively learn to empower their potential not

only in the classroom, but also outside the classroom. Collaborative learning will

evoke social attitudes, while empowering one's potential becomes the basis for

developing spiritual attitudes. This study aims to examine the effect of the problem-

based flipped classroom learning (PBFCL) model compared to the DI model in

achieving critical thinking, social attitudes, and spiritual attitudes of students. The

study population was XMIPA class of SMAN Penebel Tabanan consisting of 4

classes (120 students). The research sample was selected by random assignment

technique, so XMIPA1 (30 students) was selected as PBFCL class and XMPA2 (30

students) as DI class. Data on critical thinking skills of students was collected with

18 items of critical thinking tests of physics content with alpha crobach reliability

coefficient = 0.926. To analyze the research data used Manova technique.

Hypothesis testing uses a significance level of 5%. The results showed that the

PBFCL model had a greater effect than the DI model in achieving critical thinking,

social attitudes, and spiritual attitudes of students in learning physics in high school.

Keywords : Flipped classroom learning, critical thinking, social attitudes, spiritual

attitudes


207

IConMNS 218

The effect of scientific creative reasoning worksheet (SCSRW) on project based

learning and prior knowledge towards scientific reasoning skills of high school

students

A P Metalinda, I M Astra, and Y Supriyati

Universitas Negeri Jakarta

[email protected]

Abstract

Since 21st century, scientific creative and scientific reasoning skills would ensure

that students are better prepared to enter the workforce. One of the ways is by

implementing project based learning worksheet that facilitate students to be able to

think creatively and to reason scientifically. This research was conducted at MAN

Insan Cendekia Serpong from April to Mei 2019. The aim of this research to find the

effectiveness of Scientific Creative Reasoning Worksheet (SCSRW) compared with

Scientific Reasoning Worksheet (SRW) to improve students’ scientific reasoning

skills (SRS) in learning physics about simple harmonic motion. The method which

is used experimental method with treatment by level 2 x 2 design involving 52

students of 10th grade science with the selection by random sampling. The sample

was categorized higher and lower prior knowledge is about 26 students by the test

result before giving the SCSRW and SRW treatment. The instrument designed in

this research were using various syntax of scientific reasoning skills such as

premise, rule, data, evidence and claim yielding 10 open-ended questions about

simple harmonic motion. There were two projects such as creating aluminum coil

for spring pen and constructing kora-kora ship’s prototype. The results showed that

consistently implementing SCSRW was more effective significant in improving

SRS was about 86,3 with standard deviation 6,55 for higher prior knowledge

students while lower prior knowledge was about 83,4 with standard deviation 3,96.

Other side, implementing SRW showed the result was about 85,1 with standard

deviation 4,42 for higher prior knowledge students while lower prior knowledge was

about 81,8 with standard deviation 4,13. The data collection method was using

ANOVA 2 ways. All the data was homogen variance with Barlett test and normal

distribution with Lilliefors test.

Keywords : scientific creative reasoning worksheet, scientific reasoning worksheet,

project based learning, scientific reasoning skills, scientific creative skills, prior

knowledge, simple harmonic motion



208

IConMNS 223 Development of STEM-based PhET simulation students woorksheet to improve

creative thinking skills of class xi in high school

I M Astra and H Y Pricilia

Universitas Negeri Jakarta [email protected], [email protected]

Abstract

The development of this research aims to produce STEM (science, technology,

engineering, and mathematics) -based PhET Simulation Student Worksheets to

Improve Creative Thinking Skills of High School XI Students. One learning

approach used to practice creative thinking skills is the STEM learning approach.

This development is based on learning objectives that are in accordance with the

principles of the Indonesian Curriculum 2013, students can learn anytime and

anywhere with a guide to student worksheets and the PheT Simulation application.

The preparation of this student worksheet uses the syntax of the STEM learning

approach, that are: observe, new idea, innovation, creativity, society. The research

method used is Research and Development (R&D) with ADDIE development

models, that are: Analysis, Design, Development, Implementation, and Evaluation.

Validation tests have been carried out consisting of material, media, and learning

expert tests as well as field tests by physics teachers and students stating that the

product is suitable for use as a learning medium. Gain test results through pre-test

and post-test gained 0.4 in interpretation which means that the STEM-based PhET

Simulation students woorksheet is effective in improving students' creative thinking

skills.

Keywords : STEM, PhET simulation, creative thinking skills



This page is left blankfmipa.undiksha.ac.id/iconmns2019/files/Conference Book...vi On 31st August,...

Documents

Transcript of This page is left blankfmipa.undiksha.ac.id/iconmns2019/files/Conference Book...vi On 31st August,...