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®
What do you notice?
What do you wonder?
How does arranging the dots into an array affect how you see the number?
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.
Use cubes to make 6 groups of 5.
Arrange them into an array.
Explain or show how the array is related to equal groups.
Count out 20 cubes.
Arrange them into an array.
Explain or show how the array is related to equal groups.
Count out 24 cubes.
Arrange them into an array.
Explain or show how the array is related to equal groups.
Arrange 12 cubes into an array.
Explain or show how the array is related to multiplication.