Unit 2 - Lesson 12 - Grade 3: Illustrative Mathematics

Last updated about 1 year ago

10 questions

Note from the author:

Grade 3 Unit 2
Lesson 12: Area and Addition
CC BY 2021 Illustrative Mathematics®

Instructions

Grade 3 Unit 2
Lesson 12: Area and Addition
CC BY 2021 Illustrative Mathematics®

Lesson: Area and Addition

Number Talk: So Close (Warm Up)

Find the value of each expression mentally.

Rectangles in Rectangles

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.

What is the area of the whole space?

Design your own garden. Find the area of each part of the garden and the area of the whole garden.

Find the Rectangles

Cool Down: Where are the Rectangles?

Unit 2 - Lesson 12 - Grade 3: Illustrative Mathematics

Unit 2 - Lesson 12 - Grade 3: Illustrative Mathematics

Number Talk: So Close (Warm Up)

Rectangles in Rectangles

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.

What is the area of the whole space?

Design your own garden. Find the area of each part of the garden and the area of the whole garden.

Find the Rectangles

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

Number Talk: So Close (Warm Up)

9 + 6

29 + 6

59 + 6

49 + 8

Rectangles in Rectangles

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.

What is the area of the whole space?

Design your own garden. Find the area of each part of the garden and the area of the whole garden.

Find the Rectangles

What do you notice?

What do you wonder?

Find the area of this figure. Explain or show your reasoning. Organize it so it can be followed by others.

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

9 + 6

29 + 6

59 + 6

49 + 8

What do you notice?

What do you wonder?

Find the area of this figure. Explain or show your reasoning. Organize it so it can be followed by others.

Unit 2 - Lesson 12 - Grade 3: Illustrative Mathematics

Unit 2 - Lesson 12 - Grade 3: Illustrative Mathematics

Number Talk: So Close (Warm Up)

Rectangles in Rectangles

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.What is the area of the whole space?

Design your own garden. Find the area of each part of the garden and the area of the whole garden.

Find the Rectangles

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

Number Talk: So Close (Warm Up)

9 + 6

29 + 6

59 + 6

49 + 8

Rectangles in Rectangles

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.What is the area of the whole space?

Design your own garden. Find the area of each part of the garden and the area of the whole garden.

Find the Rectangles

What do you notice?

What do you wonder?

Find the area of this figure. Explain or show your reasoning. Organize it so it can be followed by others.

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

9 + 6

29 + 6

59 + 6

49 + 8

What do you notice?

What do you wonder?

Find the area of this figure. Explain or show your reasoning. Organize it so it can be followed by others.

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.

What is the area of the whole space?

This rectangle represents space in a community garden. The shaded part is covered with vegetables and the unshaded part is covered with flowers. Each square represents 1 square foot.

What is the area of the whole space?