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Laabri

Unit 3 - Lesson 4 - Grade 5: Illustrative Mathematics

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Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Grade 5 Unit 3

Lesson 4: Situations about Multiplying Fractions

CC BY 2021 Illustrative Mathematics

Grade 5 Unit 3

Lesson 4: Situations about Multiplying Fractions

CC BY 2021 Illustrative Mathematics

Lesson: Situations about Multiplying Fractions

Number Talk: More Halving (Warm Up)

The Park

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A Different Park

Cool Down: Area of the Park

Find the value each expression mentally.

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1.

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2.

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3.

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4.

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5.

A city is designing a park on a rectangular piece of land. 2/3 of the park will be used for different sports. 1/2 of the land set aside for sports will be soccer fields.

Draw a diagram of the situation.

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6.

Write a multiplication expression to represent the fraction of the park that will be soccer fields.

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7.

What fraction of the whole park will be soccer fields? Explain or show your reasoning.

Here is a diagram for a different park that Elena drew.

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8.

Which part of the park can be represented with the expression 3/5 x 1/2?

Explain or show your reasoning.

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9.

Pick one of the other parts of the park and write a multiplication expression for the fraction of the park it represents.

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10.

Trade expressions with your partner and figure out which part of the park their expression represents. Be prepared to explain your reasoning.

Here is a diagram for a park.

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11.

Write a multiplication expression to represent the fraction of the park that is for soccer.

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12.

How much of the whole park will be used for soccer?