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Unit 2 - Lesson 13 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 2
Lesson 13: Area and Properties of Operations
CC BY 2021 Illustrative Mathematics®
Grade 5 Unit 2
Lesson 13: Area and Properties of Operations
CC BY 2021 Illustrative Mathematics®
Lesson: Area and Properties of Operations

Number Talk: Parentheses (Warm Up)

Find the value of each expression mentally.
1.

2.

3.

4.

Card Sort: Diagrams and Expressions

Your teacher will give you and your partner a set of cards.
  1. Sort the cards in a way that makes sense to you.
  2. Match each expression to an appropriate diagram. Some diagrams match more than one expression.
  3. Work with your partner to find the area of each shaded region. Explain or show your reasoning.
5.

Diagram 1:

Work with your partner to find the area of the shaded region. Explain or show your reasoning.

6.

Diagram 2:

Work with your partner to find the area of the shaded region. Explain or show your reasoning.

7.

Diagram 3:

Work with your partner to find the area of the shaded region. Explain or show your reasoning.

8.

Diagram 4:

Work with your partner to find the area of the shaded region. Explain or show your reasoning.

9.

Diagram 5:

Work with your partner to find the area of the shaded region. Explain or show your reasoning.

Write Expressions

10.

Write as many expressions as you can to match the area of the shaded region in the diagram.

11.

Write as many expressions as you can to match the area of the shaded region in the diagram.

Cool Down: Equivalent Expressions
12.

Select all the expressions that represent the area of the shaded region.