# Lesson 7 Cubic Units of Measure

Let’s use different sized cubic units to measure volume.

## Warm-up Notice and Wonder: Two Prisms

What do you notice? What do you wonder?

## Activity 1 What are the Units?

For each object, choose the cubic unit you would use to measure the volume: cubic centimeter, cubic inch, or cubic foot.

object | unit you would use |
---|---|

the volume of a moving truck | |

the volume of a freezer | |

the volume of a juice box | |

the volume of a classroom | |

the volume of a dumpster | |

the volume of a lunch box |

## Activity 2 Info Gap: Sizing Up Cubic Units

This is a diagram of a freezer. What is the volume of the freezer?

**Problem 1: **

Partner A has the problem card.

Partner B has the data card.

**Problem 2: **

Partner B has the problem card.

Partner A has the data card.

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

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.

## Practice Problem

## Problem 1

A box of milk measures 4 cm by 10 cm by 30 cm. What is its volume in cubic centimeters? Explain or show your reasoning.