Unit 2 - Lesson 5 - Grade 3: Illustrative Mathematics
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Last updated 9 months ago
17 questions
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Grade 3 Unit 2
Lesson 5: Represent Products as Areas
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 2
Lesson 5: Represent Products as Areas
CC BY 2021 Illustrative Mathematics®
Lesson: Represent Products as Areas
1
How many do you see?
How many do you see?
1
How do you see them?
How do you see them?
Your teacher has posted images of rectangles around the room. Match each expression with a rectangle that can represent it. Be prepared to explain your reasoning.
1
9 x 5
9 x 5
1
8 x 2
8 x 2
1
7 x 10
7 x 10
1
3 x 3
3 x 3
1
2 x 6
2 x 6
1
8 x 4
8 x 4
1
5 x 7
5 x 7
The numbers in each expression represent the number of rows (or columns) in a rectangle and how many squares are in each row (or column).
1
On the grid, draw each rectangle, label it with the numbers, and find its area.
3 x 4
On the grid, draw each rectangle, label it with the numbers, and find its area.
3 x 4
1
On the grid, draw each rectangle, label it with the numbers, and find its area.
4 x 6
On the grid, draw each rectangle, label it with the numbers, and find its area.
4 x 6
1
On the grid, draw each rectangle, label it with the numbers, and find its area.
6 x 3
On the grid, draw each rectangle, label it with the numbers, and find its area.
6 x 3
1
On the grid, draw each rectangle, label it with the numbers, and find its area.
7 x 4
On the grid, draw each rectangle, label it with the numbers, and find its area.
7 x 4
1
On the grid, draw each rectangle, label it with the numbers, and find its area.
3 x 2
On the grid, draw each rectangle, label it with the numbers, and find its area.
3 x 2
1
Explain why multiplying the numbers in each expression gives us the area of the rectangle.
Explain why multiplying the numbers in each expression gives us the area of the rectangle.
Cool Down: Create a Rectangular Area
1
Use the grid to create a rectangular area that represents the expression 7 x 4.
Use the grid to create a rectangular area that represents the expression 7 x 4.
1
Explain your reasoning.
Explain your reasoning.