MA112 – Section 108Lab-Enhanced Precalculus Algebra

1:25 p.m. – 2:15 p.m. MWFDr. Maria Byrne

As you enter, please introduce yourself to a couple other people in the class. Pick up a syllabus.

Today We Will

• Go over syllabus.

• Take pre-test.

Today We Will

• Go over syllabus.

• Take pre-test.

For next Wednesday: read R1 in book.

Your Instructor

• Instructor: Dr. Audi Byrne

Dr. Audi ByrnePhD in mathematics from the University of Notre Dame

Dr. Audi ByrneResearch area in biomathematics.

(Dynamical systems and modeling. )

Cellular automata

Multi-cellular Systems

Stochastic Processes

Contacting Your Instructor

Dr. Audi Byrne

• Office: ILB 452

• Office Hours: 12:20am-1:10am daily And by appointment.

• E-mail: abyrne@jaguar1.usouthal.edu

Byrne South Alabama

Course Information

• Course webpage:• www.southalabama.edu

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Audi Byrne•Rank: Assistant Professor of Mathematics

•Education: PhD, University of Notre Dame, 2004 •Research interests: Math modeling, bio-math •abyrne@jaguar1.usouthal.edu •link to personal home page •Teaching schedule: Summer 2010 Not teaching

•Office Hours: Summer 2010 By appointment

•Office: ILB 452 251-460-6264 ext 7162

Lab-Enhanced MA112

Per week:

• 3 Traditional Lectures: 50 minutes, Monday, Wednesday and Friday

(1:25 p.m. – 2:15 p.m.)

• 1 Lab Session:50 minutes on Wendesday

(11:15 a.m. – 12:05 a.m.)

Benefits of MyMathlab for Students

At the University of Alabama:• http://www.youtube.com/watch?v=eLrEu4Eq3fs

Student Testimonials

“Using MyMathLab to do homework was quite easy. Doing my homework online gave much practice for the test given in class. What I truly like about MML is that it tells how to work out each problem and what formulas to use. By using MML I found myself better prepared for the multiple choice final exam.”

Student Testimonials

“I like that MyMathLab lays out all of the things that you need to study. It keeps things in order, keeps you on track, and helps you learn how to solve all of the problems needed to pass the course. I never would have thought that I could have this much help in math while taking it online, but I really think that MyMathLab is a great resource and everyone should use it.”

Student Testimonials

“I was able to work at my own pace. I didn’t feel like I was pressured to keep up with anyone, and I didn’t feel like I was being held back by anyone.”

Textbook

A custom edition taken from Precalculus: Graphs & Models, Fourth Edition by Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen and Judith A. Penna (2008) .

You must purchase the book in order to acquire the student access code to MyMathlab, or buy it online with a credit card.

Semester at a Glance

• Module 1 – What is a function?• Module 2 – Linear Functions• Module 3 – Operations with Functions

Midterm on Friday, October 1st

• Module 4 – Quadratic Functions• Module 5 – Polynomial Functions• Module 6 – Rational Functions• Module 7 – Exponential and Logarithmic Functions

Final on Monday, December 13th

7 Modules

Grading

Homew ork10%

Quizzes20%

Mid-term30%

Final40%

Tutoring lab:

The department offers a tutoring lab in Room 456 to all student taking mathematics and statistics classes. There is no lab fee. Please check the bulletin board outside ILB 325 for details.

Disabilities

If you have a specific disability that may qualify you for academic accommodations:

Visit the Office of Special Student Services.

Don’t Drop Without Dropping By

The last drop day for the course is October 29th. If you get to the point where you are considering dropping the course, please speak with me, the department chair (Dr. Carter) or the assistant to the chair (Dr. Brick) before dropping.

Homework

• Buy your book (binder or e-book) if you haven’t already. If you haven’t registered to MyMathlab, make sure you bring your student access code to lab on Friday.

• Read Section R.1 The Real Number Line

1-Minute Group Question

In small groups of 2 or more, introduce yourselves and ask each other any questions you have about the course.

(If no ones knows, you’ll have a chance to ask the instructor.)

Motivation…

Motivation…

• The University Experience

Now time for the

Pre-test

Next time…

• Why learn Precalculus Algebra?

• The real number line.

Why study precalculus?(Why learn algebra?)

• Precalculus = Algebra.

• Needed preparation for precalculus and very useful in its own right.

• Algebra: Understanding and describing relationships between quantities, especially in ways that help you find solutions to problems.

Algebra: Understanding and describing relationships between quantities, especially in ways that help you find solutions to problems.

Relationships between quantities:• # of eggs and # of cartons• Cost of tuition and # of semesters

attended.• Monthly gas bill and average temperature

over the month.

# of eggs and # of cartons

• In words:However many cartons you have, you have twelve

times that many eggs.

• Algebra: (algebraic equation)Let the number of cartons be represented by the

letter C. Let the number of eggs be represented by the

letter E. Then we have: E = 12 C.

# of eggs and # of cartons

• Algebra: (graph)

# Eggs verses # Cartons

0

20

40

60

80

0 1 2 3 4 5

Number of Cartons

Nu

mb

er o

f E

gg

s

Eggs

Algebra: Understanding and describing relationships between quantities, especially in ways that help you find solutions to problems.

• Suppose you have 20 feet of fencing. What is the largest area you can enclose?

• If one side has length L, the other side must be 10-L. The area will be L(10-L).

Optimal Length of One Side

Area of the Yard Vs Length 'L'

0

10

20

30

0 2 4 6 8 10

Length 'L'

Are

a o

f th

e Y

ard