# Lesson 14 Weight and Capacity Measurements

Let’s solve problems about weight and capacity.

## Warm-up Number Talk: Lots of Thousands

Find the value of each expression mentally.

## Activity 1 Milk and Mango Lassi

## Problem 1

Here are three true statements about this jug of milk.

This jug contains 1 gallon of milk.

This jug contains 4 quarts of milk.

This jug contains 16 cups of milk.

Complete each statement so that it is true:

One gallon is times as much as 1 quart.

One gallon is times as much as 1 cup.

One quart is times as much as 1 cup.

## Problem 2

For a potluck party, Priya and three other relatives are bringing mango lassi.

guest | amount of lassi |
---|---|

Priya | 10 cups |

Uncle | 3 quarts |

Cousin | 8 cups |

Grandma | 2 gallons |

Who prepared the most mango lassi? Explain or show your reasoning.

How many cups of lassi did all the guests bring?

Complete this sentence: Priya’s grandma made times as much lassi as Priya’s cousin. Show how you know.

## Activity 2 Clay for Art Class

## Problem 1

At a craft store, clay is sold in packs of different sizes: 1 pound, 24 ounces, 3 pounds, and 5 pounds.

An art teacher needs 120 ounces of clay for her class.

Would she have enough clay if she bought each of the following combinations? Explain or show your reasoning.

1-pound pack

24-ounce pack

3-pound pack

5-pound pack

Combo A

Combo B

Combo C

## Problem 2

Decide if each statement is true or false. Be prepared to explain or show your reasoning.

A 3-pound pack weighs 2 times as much as a 24-ounce pack.

If we combine a 1-pound pack, a 3-pound pack, and a 5-pound pack, we’d have 6 times as much clay as what’s in a 24-ounce pack.

## Practice Problems

## Problem 1

Jada’s class drank 2 gallons of milk at lunch. How many cups is that?

The third graders at Jada’s school drank 3 times as much milk as Jada’s class. How many quarts is that?

## Problem 2

A rectangle has perimeter 19 cm. One side is 4 cm. How long is the other side of the rectangle?

A square has perimeter 19 cm. How long is each side of the square? Explain or show your reasoning.