Unit 1 - Lesson 20 - Grade 3: Illustrative Mathematics
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15 questions
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Grade 3 Unit 1
Lesson 20: The Commutative Property
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 1
Lesson 20: The Commutative Property
CC BY 2021 Illustrative Mathematics®
Lesson: The Commutative Property
Find the value of each expression mentally.
1
70 - 10
70 - 10
1
68 - 10
68 - 10
1
70 - 12
70 - 12
1
68 - 12
68 - 12
1
What do you notice?
What do you notice?
1
What do you wonder?
What do you wonder?
1
How are the situations the same?
How are the situations the same?
1
How are the situations the different?
How are the situations the different?
1
Write an equation for Image A.
Write an equation for Image A.
1
Write an equation for Image B.
Write an equation for Image B.
1
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 A?
1
How does your equation connect to the situation and array for Image B?
How does your equation connect to the situation and array for Image B?
1
Write 2 multiplication equations that represent the array.
Write 2 multiplication equations that represent the array.
1
Explain why both equations can represent the array.
Explain why both equations can represent the array.
Cool Down: Multiplication Reflection
1
Summarize what you learned about multiplication today.
Summarize what you learned about multiplication today.