Navigation

K-5 Grade 3 Unit 2 Lesson 13

Gradeband

•K-5 Math 6-8 Math 9-12 Math

Course

Kindergarten Grade 1 Grade 2 •Grade 3 Grade 4 Grade 5

Unit

Unit 1 •Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8

Lesson

Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11 Lesson 12 •Lesson 13 Lesson 14 Lesson 15

K-5
6-8
9-12

Kindergarten
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5

Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15

Lesson | Loading...

Sign in to access protected content and invite other educators

Sign in using your existing Kendall Hunt account. If you don’t have one, create an educator account.

Curriculum

IM K-5 Math
IM 6-8 Math
IM 9-12 Math

Professional Learning

Illustrative Mathematics® has operated as an independent 501(c)3 non-profit organization since 2013.

©2024 Illustrative Mathematics®. Licensed under CC BY-NC 4.0.

The Illustrative Mathematics name and logo are not subject to the Creative Commons license and may not be used without the prior and express written permission of Illustrative Mathematics.

This site includes public domain images or openly licensed images that are copyrighted by their respective owners. Openly licensed images remain under the terms of their respective licenses. See the image attribution section for more information.

Settings

Language

Audience

Not all roles available for this page.

Assessment Access

Sign in to view assessments and invite other educators

Sign in using your existing Kendall Hunt account. If you don’t have one, create an educator account.

English
Español

teacher
student
family

Lesson 13

Warm-up Activity 1 Activity 2

Unit 2, Lesson 13

Find the Area of a Figure

Grade 3

Warm-up

Find the value of each expression mentally.

Activity 1

What do you notice? What do you wonder?

A figure for finding area.

Find the area of each figure. Explain or show your reasoning.

1.

T-shaped figure. If split horizontally, 2 rectangles. Top, 8 tick marks by 3 tick marks. Bottom, 4 tick marks by 2 tick marks. — 2.

Activity 2

Noah wants to use square pavers to create a small patio in the community garden. A diagram of the patio is shown.

<span>6-sided shape. Straight sides. All side lengths meet at right angles. </span><span>Bottom, 3 ft. Right side rises 2 ft, then goes right 6 ft, up 4 ft. Top side length, 9 ft. Left side length, 6 ft. </span><span> </span>

Each paver covers 1 square foot. How many pavers will Noah need to cover the whole patio?
What is the area of the patio? Explain or show your reasoning.