Proportions

1
Proportions

• Monday, November 29
• Math Workshop 3rd Period

2
Agenda

• Bell Ringer
• PowerPoint on Proportion Word Problems
• Class work/Homework
• Exit Slip (Time Permitting)

3
Objective

• By the end of the unit, students will be able to
  add, subtract, divide, multiple fractions and
  improper fractions to mixed numbers, find squares
  and square roots, solve proportions, find
  fractions to their lowest term, convert decimals
  to fractions and percents, and use scientific
  notation.

4
1. What is the sum of 4 ½ and 2 ½ ?

1. A. 6
2. B. 6 2/4
3. C. 7
4. D. 14/2

5
2. If Kenya had 9 2/9 cups of flour and she used
6 1/3 cups on an apple pie, how much flour does
she have left?

1. A. 2.88
2. B. 3 1/6
3. C. 2 8/9
4. D. 26/9

6
3. What is the v625?

1. 10
2. 25
3. 15
4. 13

7
4. What is 202?

1. 200
2. 400
3. 300
4. 250

8
5. What is ¾ 10?

1. 3/40
2. .075
3. 3
4. 30

9
6. For every 10 shirts you have in your closet,
you have 2 pairs of jeans. If you have 30
shirts, how many jeans would you have?

• Remember set this up as a proportion!
• A. 6 pairs of jeans
• B. 4 pairs of jeans
• C. 20 pairs of jeans
• D. 40 pairs of jeans

10
Determine Whether the Ratios Form a Proportion

• 4 16 4 8
• 3 12 3 6
• 3 18 12 3
• 2 8 24 4
• 6 2 4 20
• 9 3 2 6

11
Class Work

• If you can buy one can of pineapple chunks for 2
  then how many can you buy with 10?
• 1 (pineapple) X (pineapple)
• 2 10

12
Class Work

• One jar of crushed ginger costs 2. How many
  jars can you buy for 4?
• 1 (ginger) X (ginger)
• 2 4