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CAASPP Grade 8 Math - Performance Task

Posljednje ažuriranje 9 months ago

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Stacks of Cups

Your science classroom uses cups for many experiments. Your teacher ordered lots of cups form a catalog. The catalog is not very good. It has the following picture, but no further useful information.

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Your teacher wants you to help her get organized for when the cups arrive next week. Using only the information shown in the picture, she asks you to figure out some other specific measurements.

Pitanje 1

1.

How tall, in cm, is the stack of 8 cups?

Pitanje 2

2.

How tall, in cm, is 1 cup? Explain how you determined the height of 1 cup.

Pitanje 3

3.

Your teacher thinks that instead of having to figure out these stacks each time, it would be useful to understand the general relationship.
Write an equation expressing the relationship between the height of the stack and the number of cups in the stack.
Let h represent the height of the stack, in cm, and n the number of cups in the stack.

Pitanje 4

4.

The catalog is advertising a stack of these cups that is 95 cm tall. Lori says, "That must be a misprint because a stack of that height is not possible."
Do you agree or disagree with Lori? Explain your reasoning.

Pitanje 5

5.

Your class wants to sell School Spirit Cups with your school logo on them.
Your teacher wants you to design this new cup such that a stack of 10 cups will be 125 cm tall.
Describe key measurements of the School Spirit Cups and explain how they will meet the required specifications.