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Unit 1 - Lesson 16 - Grade 3: Illustrative Mathematics

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Last updated 2 months ago
12 Questions
Note from the author:
Grade 3 Unit 1
Lesson 16: Arrange Objects Into Arrays
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 1
Lesson 16: Arrange Objects Into Arrays
CC BY 2021 Illustrative Mathematics®
Lesson: Arrange Objects Into Arrays

Notice and Wonder: Eggs (Warm Up)

1.

What do you notice?

2.

What do you wonder?

Compare Equal Groups and Arrays

3.

How does arranging the dots into an array affect how you see the number?

4.

Noah says he sees equal groups in the drawing with 4 circles and 5 dots in each circle, but says there are
no equal groups in the array. Do you agree with Noah? Explain your reasoning.

Arrange Into Arrays

Use cubes to make 6 groups of 5.
5.

Arrange them into an array.

6.

Explain or show how the array is related to equal groups.

Count out 20 cubes.
7.

Arrange them into an array.

8.

Explain or show how the array is related to equal groups.

Count out 24 cubes.
9.

Arrange them into an array.

10.

Explain or show how the array is related to equal groups.

Cool Down: Array Arrangement
11.

Arrange 12 cubes into an array.

12.

Explain or show how the array is related to multiplication.