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Unit 3 - Lesson 13 - Grade 5: Illustrative Mathematics

By Formative Library
Last updated 3 months ago
10 Questions
Note from the author:
Grade 5 Unit 3
Lesson 13: Divide Whole Numbers by Unit Fractions
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 3
Lesson 13: Divide Whole Numbers by Unit Fractions
CC BY 2021 Illustrative Mathematics
Lesson: Divide Whole Numbers by Unit Fractions

Notice and Wonder: Quilt (Warm Up)

1.

What do you notice?

2.

What do you wonder?

Paper Strips

Below are diagrams that show strips of different colored paper. Each strip is 2 feet long. The paper strips will be cut into different sized pieces.
3.

The red strip will be cut into pieces that are 1/2 foot long. How many pieces will there be?

4.

The green strip will be cut into pieces that are 1/3 foot long. How many pieces will there be?

5.

The yellow strip will be cut into pieces that are 1/4 foot long. How many pieces will there be?

6.

Describe what was the same about the problems you solved. Describe what was different.


More Paper Strips

Kiran has a yellow strip of paper that is 2 feet long. He wants to cut the strip into pieces that are 1/6 foot long.
7.

How many pieces will Kiran have? Explain or show your reasoning.

8.

Write a division equation to represent the situation.

9.

Describe how the equation
represents a strip of paper that is 3 feet long being cut into equal-sized pieces.

Cool Down: A Different Strip of Paper
10.

Han has a strip of paper that is 3 feet long. He cuts it into pieces that are 1/4 foot long. How many pieces are there? Explain or show your reasoning.