Proportional Relationships II

Try It!

In a bag of 8 apples, 2 of the apples are green. In a bag of 4 apples, 1 is green. Is this a proportional relationship?

Talk About It

What is the first ratio, or fraction, you built?

What does the ratio represent? What is the second ratio, or fraction, you

built? What does the ratio represent? How can you tell if the two ratios are

equivalent? Is this a proportional relationship? Why or

why not?

Solve It

Based on the problem, build the two ratios and draw them on the Fraction Squares worksheet. Explain whether the ratios are equivalent and write an equation to represent the equivalent ratios.

Check for Understanding

In Rob’s group, there are 2 boys and 3 girls. In Caren’s group, there are 4 boys and 6 girls. Which equations shows that the groups are proportional?

A B C D

3

1

6

2

10

4

5

2

6

3

4

2

6

4

3

2

Practice and Homework

Start on Lesson 2 Ratios and Proportional Relationships worksheet. Read the directions carefully.

Homework: Complete worksheet and look at the web page for additional problems for practice.