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March 31, 2010Math 132: Foundations of Mathematics 5.7 Homework Solutions 105. Geometric: 3/16, 3/32 106. Geometric: 3/8, 3/16 107. Arithmetic: 5/2, 3.

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Presentation on theme: "March 31, 2010Math 132: Foundations of Mathematics 5.7 Homework Solutions 105. Geometric: 3/16, 3/32 106. Geometric: 3/8, 3/16 107. Arithmetic: 5/2, 3."— Presentation transcript:

1 March 31, 2010Math 132: Foundations of Mathematics 5.7 Homework Solutions 105. Geometric: 3/16, 3/32 106. Geometric: 3/8, 3/16 107. Arithmetic: 5/2, 3 108. Arithmetic: 2, 7/3 109. Geometric: 7, -7 110. Geometric: 6, -6 111. Arithmetic: -49, -63 112. Arithmetic: -42, -56 113. Geometric: 25√5, 125 114. Geometric: 9 √3, 27

2 March 31, 2010Math 132: Foundations of Mathematics Amy Lewis Math Specialist IU1 Center for STEM Education

3 March 31, 2010Math 132: Foundations of Mathematics 8.1 Percent, Sales Tax, and Income Tax Write equivalent forms of fractions, decimals, and percents. Solve applied problems involving sales tax and discounts. Determine percent increase or decrease.

4 March 31, 2010Math 132: Foundations of Mathematics Shopping You decide to purchase a graphing calculator for math class. The calculator costs $96, and you pay 6% sales tax. What the total cost of your purchase? How did you find this answer?

5 March 31, 2010Math 132: Foundations of Mathematics Percents A numerical representation that expresses values as part of 100. –What does 27% mean? 150% mean? –What does it mean that 3 is 20% of 15? 12 is 60% of 20?

6 March 31, 2010Math 132: Foundations of Mathematics Discounts! A satellite radio player with an original price of $380 is on sale at 35% off. How much did you pay for the player (before taxes)? How did you solve this problem?

7 March 31, 2010Math 132: Foundations of Mathematics Percent Change A television regularly sells for $940. The sale price is $611. Find the percent decrease of the sale price from the regular price.

8 March 31, 2010Math 132: Foundations of Mathematics Percent Change I scored a 73 on the first test and an 86 on the second test. What was my percent change in scores? What if I went from an 86 to a 73? Percent Change = Amount of Change × 100 Original Amount

9 March 31, 2010Math 132: Foundations of Mathematics Project #1 2-Page Summary Paper (40 points) Lesson Plan: Write a lesson plan to be implemented in your shop. (40 points) PowerPoint: Create a PowerPoint to support the instruction for your lesson (20 points) http://stem.iu1.wikispaces.net

10 March 31, 2010Math 132: Foundations of Mathematics Project #1 “What if I don’t teach in a shop???” –You can do an in-depth study of one of the topics that we have studied thus far. –How would you teach this topic to a class or a small group of students?

11 March 31, 2010Math 132: Foundations of Mathematics Homework 453: 47, 49, 50, 66 Begin working on your Project. Next Session: Thursday, April 8

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