Introductory Guide to Sanitation Marketing Introductory Guide to Sanitation Marketing
The purpose of this PowerPoint is to present strategies to aid students at the high school and...
-
Upload
cesar-axford -
Category
Documents
-
view
213 -
download
0
Transcript of The purpose of this PowerPoint is to present strategies to aid students at the high school and...
The purpose of this PowerPoint is to present strategies to aid students at the high school and introductory college levels to:
Design experimentsWrite proceduresConstruct tables and graphsGenerate ideasWrite simple lab reports
Experimental Design DiagramTitle: The effect of ...IV... on ...DV...
Hypothesis: If the ...IV... is modified in this way,then this will happen to the ...DV...
Independent variable:
these boxesshow how theIV is modified
_____trials _____trials _____trials _____trials _____trials
Dependent Variable:
Constants:
Control:
Experimental Design Diagram
Title: The effect of different aged compost on beanplant growth.
Hypothesis: If older compost is applied, then plantgrowth will be increased.
Independent variable: Age of Compost
these boxesshow how theIV is modified
3 month oldcompost
6 month oldcompost No compost
# trials 25 trials 25 trials 25 trials
Dependent Variable: Height of plants (cm)
Constants: amount of light, water, compost
Control: no compost
4 Question Strategy
Q1 – What materials are readily available for conducting experiments on ____________
Q2 – How do ______ act?Q3 – How can I change the set of ____
materials to affect the actionQ4- How can I measure or describe the
response of ____ to the change?
EXAMPLEQuestion 1
What materials are readily available for conducting experiments on plants?
SoilFertilizerWaterLight/heatContainers
EXAMPLEQuestion 3
How can I change the set of plant materials to affect the action?
Water – amount, method of application, source, pH
Containers – location of holes, number of holes, shape, material, size
Plants – spacing, kind, age, size
EXAMPLEQuestion 4
How can I measure or describe the response of plants to the change?
Count the number of leavesMeasure the length of the longest
stemCount the number of flowersDetermine the rate of growthMass the fruit produced
Constructing Data Tables
Things to consider when constructing a table Does the system communicate the
relationship between the IV and DV? Does the system communicate the order
in which the IV was changed? Does the system’s title communicate the
purpose of the experiment? Are the units of measurements
communicated?
Bar vs. Line
DISCRETE DATA – CATEGORICAL OR COUNTED (DAYS OF THE WEEK, GENDER, COLOR)
CONTINUOUS DATA MEASUREMENTS INVOLVING A STANDARD SCALE WITH EQUAL INTERVALS; CONTINUOUS RANGE OF MEASUREMENTS