Unit 1 - Lesson 20 - Grade 3: Illustrative Mathematics

Last updated 11 months ago

15 questions

Note from the author:

Grade 3 Unit 1
Lesson 20: The Commutative Property
CC BY 2021 Illustrative Mathematics®

Instructions

Grade 3 Unit 1
Lesson 20: The Commutative Property
CC BY 2021 Illustrative Mathematics®

Lesson: The Commutative Property

Number Talk: Subtraction (Warm Up)

Find the value of each expression mentally.

70 - 10

68 - 10

70 - 12

68 - 12

Learn More About Multiplication

What do you notice?

What do you wonder?

How are the situations the same?

How are the situations the different?

Revisit Arrays

Write 2 multiplication equations that represent the array.

Explain why both equations can represent the array.

Cool Down: Multiplication Reflection

Unit 1 - Lesson 20 - Grade 3: Illustrative Mathematics

Unit 1 - Lesson 20 - Grade 3: Illustrative Mathematics

Number Talk: Subtraction (Warm Up)

70 - 10

68 - 10

70 - 12

68 - 12

Learn More About Multiplication

What do you notice?

What do you wonder?

How are the situations the same?

How are the situations the different?

Revisit Arrays

Write 2 multiplication equations that represent the array.

Explain why both equations can represent the array.

Summarize what you learned about multiplication today.

Number Talk: Subtraction (Warm Up)

70 - 10

68 - 10

70 - 12

68 - 12

Learn More About Multiplication

What do you notice?

What do you wonder?

How are the situations the same?

How are the situations the different?

Write an equation for Image A.

Write an equation for Image B.

How does your equation connect to the situation and array for Image A?

How does your equation connect to the situation and array for Image B?

Revisit Arrays

Write 2 multiplication equations that represent the array.

Explain why both equations can represent the array.

Summarize what you learned about multiplication today.

Write an equation for Image A.

Write an equation for Image B.

How does your equation connect to the situation and array for Image A?

How does your equation connect to the situation and array for Image B?