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Unit 7 - Lesson 13 - Grade 5: Illustrative Mathematics

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13 Questions
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Grade 5 Unit 7
Lesson 13: Perimeter and Area of Rectangles
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 7
Lesson 13: Perimeter and Area of Rectangles
CC BY 2021 Illustrative Mathematics
Lesson: Perimeter and Area of Rectangles

Estimation Exploration: Window Washing (Warm Up)

1.

What is the area of one window?


Record an estimate that is:

Rectangle Perimeters

2.

Jada drew a rectangle with a perimeter of 12 centimeters. What could the length and width of Jada’s rectangle be? Use the table to record your answer.

3.

Plot the length and width of each rectangle on the coordinate grid.

4.

If Jada drew a square, how long and wide was it?

5.

If Jada’s rectangle was 2.5 cm long, how wide was it? Plot this point on the coordinate grid.

6.

If Jada’s rectangle was 3.25 cm long, how wide was it? Plot this point on the coordinate grid.

Rectangle Areas

7.

Jada drew a rectangle with area 16 square centimeters. What could the length and width of Jada’s rectangle be? Use the table to record your answer.

8.

Plot the length and width of each rectangle on the coordinate grid.

9.

If Jada’s rectangle was 5 cm long, how wide was it? Plot this point on the coordinate grid.

10.

If Jada’s rectangle was 3 cm long, how wide was it? Plot this point on the coordinate grid.

11.

If Jada drew a square, how long and wide was it? Explain how you know.

Cool Down: Area and Perimeter of a Rectangle
12.

The point represents the length and width of a rectangle.


What are the area and perimeter of the rectangle? Explain or show your reasoning.

13.

What is a point that represents a different rectangle with the same area? Explain or show
your reasoning.