Car Buying Today

MaryAnn Archer

Brawley Union High School, Brawley

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

Car Buying Today

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

How much will you end up paying....

Welcome

You have your license... you've got a job... you want your own car. Find out the costs, the amount financing really adds to the purchase and don't forget California tax and registration fees.

The bottom line will amaze you!!! So dream away, but keep a little bit of this reality in mind.

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

Now Here’s A Great Truck!!

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

THE LESSON: • Duration: 5 to 10 class periods • Main Contents: 5 worksheets and Pre/Post Tests • Internet Searching for Car types and Prices • Charting Data on Microsoft Excel • Presenting Data in Microsoft PowerPoint

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

California State Standards - Algebra

1.0 Students identify and use the arithmetic properties of subsets of integers and rational, irrational, and real numbers, including closure properties for the four basic arithmetic operations where applicable.

5.0 Students solve multi-step problems, including word problems involving linear equations and linear inequalities in one variable and provide justification for each step.

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

My Unit Objectives

Objective # 1 Objective # 2 Objective # 3 Objective # 4 Students will apply arithmetic properties of rational numbers (decimals & percents) Students will apply a compound interest formula and loan term information Students will use the Internet to gain vehicle pricing data and Excel to chart it Students will use Excel and PowerPoint to summarize & present learned information

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

2 Groups Overall: Here’s 1

st

Period…

1st Period - Pre-Post Test Total Scores Comparison

16 2 0 6 4 14 12 10 8 Pre-Test Post-Test

Students CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers Student Presented PowerPoint's: Here’s A Look!!

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

PowerPoint Requirements

• 8 – 10 slides • 2 graphics • 1 Excel chart • 1 Math problem – fully explained and worked out • 2 things the group learned in this unit

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

Types of Math Problems Encountered

• • What is the Standard Tipping Rate?

15%

• • How do you figure out a 30% discount mentally?

Think of 10% first (move decimal left 1 place)

• • Recall any rules about dividing decimals???

Something about moving that decimal right…

• • How about a look at Compound Interest!

A = P(1+r/n) nt

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

Analysis of Student Performance – Yeah! Success!!!

Pre-Post Test Comparison of Each Question

1.2

1 0.8

0.6

0.4

0.2

0 1 Pre-Test question average Post-Test question average 3 5a 6 7c 7f

Question Numbers

8a 8c

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

Lesson Revision

 Rational numbers worksheet rewritten  Pre and Post Test revised to include store discounts  Hyperlinks to pre- and post- test removed from general website except on teacher page  Redirected when links did not work in lab setting  Mathematics Assessment Rubric Revised  Time-line reworked to fit daily school schedule and student progress  Excel charting refined  Student suggestions on good websites implemented

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

What Students Learned

• Reviewed rules on dividing and multiplying decimals • Practiced figuring 10% in their head • Searching Internet • Applying Excel • Using Interest formulas • Using PowerPoint • Also applied: a. Tax on a vehicle b. DMV fees c. Interest using different loan percentages and lengths of loans d. Compound Interest formula

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers

WHAT I LEARNED

• Absences - YIKES!!!

• Students love the topic of cars… girls and guys alike really wanted to find that perfect car • Students loved going to the computer lab • More time needed for PowerPoint preparation • Computer Disks are not very reliable • Pre and Post Testing was really valuable!!

CTAP 295 Teaching with Technology

MaryAnn Archer, Brawley Union High School

Car Buying Today… Rational Numbers They Did a Great Job!!

CTAP 295 Teaching with Technology