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Unit 3 - Lesson 17 - Grade 5: Illustrative Mathematics
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Instructions
Lesson: Fraction Multiplication and Division Situations
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Cool Down: How Much Milk?
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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
Number Talk: Multiply and Divide (Warm Up)
Find the value of each expression mentally.
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Question 1
1.
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Question 2
2.
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Question 3
3.
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Info Gap: Tiles
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.
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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.
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Multiplication or Division
Solve each problem. Explain or show your reasoning.
Question 7
7.
If 11 grains of rice weigh 1/3 gram, how much does each grain of rice weigh?
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Question 8
8.
Explain your reasoning.
Question 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?
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Question 10
10.
Explain your reasoning.
Question 11
11.
If each tennis ball weighs 21/16 ounces, how much do 9 tennis balls weigh?
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Question 12
12.
Explain your reasoning.
Question 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.
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Question 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.
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Question 4
4.
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.
Question 5
5.
Solve the problem independently.
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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.
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.
Question 6
6.
Solve the problem independently.
visibility
View drawing
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.