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Unit 2 - Lesson 10 - Grade 5: Illustrative Mathematics

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24 Questions
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Grade 5 Unit 2
Lesson 10: Fractional Side Lengths Less Than 1
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 2
Lesson 10: Fractional Side Lengths Less Than 1
CC BY 2021 Illustrative Mathematics®
Lesson: Fractional Side Lengths Less Than 1

Estimation Exploration: What is the Area? (Warm Up)

1.

What is the area of the shaded region?

Record an estimate that is:

Rectangle With a Fractional Side Length

2.

Write a multiplication expression to represent the area of each shaded region. Then find the area.

3.

Find the area of the shaded region.

4.

Write a multiplication expression to represent the area of each shaded region.

5.

Find the area of the shaded region.

6.

Write a multiplication expression to represent the area of each shaded region. Then find the area.

7.

Find the area of the shaded region.

What Are the Side Lengths?

8.

Write a multiplication expression to represent the area of the shaded region. What is the area?

Here are two diagrams. Consider each expression and decide whether it represents the shaded region in one of the diagrams. Be prepared to share your thinking.

9.

10.

Share your thinking.

11.

12.

Share your thinking.

13.

14.

Share your thinking.

15.

16.

Share your thinking.

17.

18.

Share your thinking.

19.

20.

Share your thinking.

21.

What is the area for diagram X?

22.

What is the area for diagram Y?

Cool Down: A Fractional Side Length
23.

Write a multiplication expression to represent the area of the shaded region.

24.

Find the area of the shaded region.