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6-8 Accelerated 6 Unit 3 Lesson 11

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K-5 Math •6-8 Math 9-12 Math

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•Accelerated 6 Accelerated 7

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Unit 1 Unit 2 •Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 Unit 9

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Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 •Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16 Lesson 17 Lesson 18 Lesson 19 Lesson 20 Lesson 21 Lesson 22 Lesson 23

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Unit 2
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Unit 4
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Unit 7
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Lesson 10
Lesson 11
Lesson 12
Lesson 13
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Unit 3, Lesson 11

Volume of Prisms

Accelerated 6

Practice

Problem 1
Student Task Statement
A pool in the shape of a rectangular prism is being filled with water. The length and width of the pool is 24 feet and 15 feet. If the height of the water in the pool is feet, what is the volume of the water in cubic feet?

Lesson 11 Resources

Student Materials

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Problem 2

Student Task Statement

Which expression can be used to find how many cubes with edge lengths of unit fit in a prism that is 5 units by 5 units by 8 units? Explain or show your reasoning.
Mai says that we can also find the answer by multiplying the edge lengths of the prism and then multiplying the result by 27. Do you agree with her? Explain your reasoning.

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Problem 3

Student Task Statement

A rectangular prism measures inches by inches by 2 inches.

Priya said, “It takes more cubes with edge lengths of inch than cubes with edge lengths of inch to pack the prism.” Do you agree with Priya? Explain or show your reasoning.
How many cubes with edge lengths of inch fit in the prism? Show your reasoning.
Explain how you can use your answer in the previous question to find the volume of the prism in cubic inches.

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Problem 4

ForLesson 10: Rectangles and Triangles with Fractional Lengths

Student Task Statement

Here is a right triangle. What is its area?

A right triangle with horizontal base on the bottom, labeled five fourths centimeter. One side is labeled three fourths centimeter and the other side is labeled 1 centimeter. A vertical dashed line is drawn from the right angle to the horizontal base and labeled h.
What is the height for the base that is units long? Show your reasoning.

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Problem 5

ForLesson 7: Finding an Algorithm for Dividing Fractions

Student Task Statement

A bucket contains gallons of water and is full. How many gallons of water would be in a full bucket?

Write a multiplication and a division equation to represent the situation.
Find the answer and show your reasoning.

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Problem 6

ForLesson 22: Representing Percentages in Different Ways

Student Task Statement

There are 80 kids in a gym. 75% are wearing socks. How many are not wearing socks? If you get stuck, consider using a tape diagram.

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