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Unit 3 - Lesson 17 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 3

Lesson 17: Fraction Multiplication and Division Situations

CC BY 2021 Illustrative Mathematics

Grade 5 Unit 3

Lesson 17: Fraction Multiplication and Division Situations

CC BY 2021 Illustrative Mathematics

Lesson: Fraction Multiplication and Division Situations

Number Talk: Multiply and Divide (Warm Up)

Info Gap: Tiles

Multiplication or Division

Solve each problem. Explain or show your reasoning.

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Cool Down: How Much Milk?
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1

Find the value of each expression mentally.

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Pitanje 1
1.

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Pitanje 2
2.

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Pitanje 3
3.

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Pitanje 4
4.

Round 1

Your teacher will give you either a problem card or a data card. Do not show or read your card to your partner.

Problem Card Student: Silently read the problem card.

Data Card Student: Silently read the data card.

Problem Card Student:

"Can you tell me______?" (Ask for a specific piece of information)

Data Card Student:

"Why do you need to know _____?" (Repeat the information requested)

Problem Card Student:

"I need to know _______ because _______."

Data Card Student:

Listen to your partner's reason. Answer with information from the data card.

Problem Card Student:

Continue asking questions until you can say, "I have enough information to solve this problem."

Display the problem card.

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Pitanje 5
5.

Solve the problem independently.

Data Card Student:

Share Data Card, then compare strategies and solutions.

Pause here so your teacher can review your work.

Ask your teacher for a new set of cards and repeat the activity, trading roles with your partner.

Round 2

Your teacher will give you either a problem card or a data card. Do not show or read your card to your partner.

Problem Card Student: Silently read the problem card.

Data Card Student: Silently read the data card.

Problem Card Student:

"Can you tell me______?" (Ask for a specific piece of information)

Data Card Student:

"Why do you need to know _____?" (Repeat the information requested)

Problem Card Student:

"I need to know _______ because _______."

Data Card Student:

Listen to your partner's reason. Answer with information from the data card.

Problem Card Student:

Continue asking questions until you can say, "I have enough information to solve this problem."

Display the problem card.

1
Pitanje 6
6.

Solve the problem independently.

Data Card Student:

Share Data Card, then compare strategies and solutions.

Pause here so your teacher can review your work.

Ask your teacher for a new set of cards and repeat the activity, trading roles with your partner.

Pitanje 7
7.

If 11 grains of rice weigh 1/3 gram, how much does each grain of rice weigh?

Pitanje 8
8.

Explain your reasoning.

Pitanje 9
9.

Mai’s road is 9/10 mile long. She ran 3/4 of the length of her road. How far did she run?

Pitanje 10
10.

Explain your reasoning.

Pitanje 11
11.

If each tennis ball weighs 21/16 ounces, how much do 9 tennis balls weigh?

Pitanje 12
12.

Explain your reasoning.

Pitanje 13
13.

A container has 2 cups of milk in it. How many 1/4 cups of milk are in the container? Explain or show your reasoning.

Pitanje 14
14.

A container has 2 cups of milk in it. The container is 1/3 full. How many cups does the

container hold? Explain or show your reasoning.