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Unit 3 - Lesson 12 - Grade 5: Illustrative Mathematics

Last updated 9 months ago
16 questions
Note from the author:
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



1

What is the same about the diagrams?

1

What is different?

1

Find the value that makes the equation true.

1

Han drew this diagram to represent

Explain how the diagram shows

1

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

Priya’s Work

1

Find the value of

Explain or show your reasoning.

1

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?

1

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

Look for Patterns

1

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

1

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

1

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

1

What patterns do you notice?

1

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

Cool Down: Evaluate Division Expressions
1

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

1

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