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Unit 3 - Lesson 12 - Grade 5: Illustrative Mathematics

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16 Questions
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Grade 5 Unit 3
Lesson 12: Represent Division of Unit Fractions by Whole Numbers
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 3
Lesson 12: Represent Division of Unit Fractions by Whole Numbers
CC BY 2021 Illustrative Mathematics
Lesson: Represent Division of Unit Fractions by Whole Numbers

Estimation Exploration: How Much is Shaded? (Warm Up)

1.

How much is shaded?


Record an estimate that is:

Diagrams, Equations, Situations

Priya and Mai used the diagrams below to find the value of



2.

What is the same about the diagrams?

3.

What is different?

4.

Find the value that makes the equation true.

5.

Han drew this diagram to represent

Explain how the diagram shows

6.

Find the value that makes the equation true. Explain or show your reasoning.

Priya’s Work

7.

Find the value of

Explain or show your reasoning.

8.

This is Priya’s work for finding the value of


because I divided 1/3 into 2 equal parts and 1/2 of 1/3 is shaded in.

What questions do you have for Priya?

9.

Priya’s equation is incorrect. How can Priya revise her explanation?

Look for Patterns

10.

Find the value that makes the equation true. Use a diagram if it is helpful.

11.

Find the value that makes the equation true. Use a diagram if it is helpful.

12.

Find the value that makes the equation true. Use a diagram if it is helpful.

13.

What patterns do you notice?

14.

How would you find the value of 1/4 divided by any whole number? Explain or show your reasoning.

Cool Down: Evaluate Division Expressions
15.

Write a division expression for the shaded region. Explain or show your reasoning.


16.

What fraction does the shaded region represent? Explain or show your reasoning.