19.1 Identify Customary Measurements Benchmarks

19.1 Identify Customary Measurements Benchmarks

I can select and use nonstandard units to measure lengths, weights, and liquid volumes.

Vocabulary

• liquid volume- the measure of the space a liquid occupies. Some customary units for measuring liquid volume are gallons (gal), quarts (qt), pints (pt), and cups (c).

• mile (mi)- a customary unit for measuring length. Other customary units of length include inches (in) and feet (ft).

• Weight is the heaviness of an object. Some customary units for measuring weight are ounces (oz), pounds (lb), and tons (T).

Open Ended

Find an object in your room. Describe that object in as much detail as you can. What color is it? What is it's size? How would you measure it? What does it feel like?

Think about the measurements you see on a yardstick.

Multiple Select

Which objects are about 1 inch in length?

• Desk

• Clock

• Eraser

• Bottlecap

• Textbook

Multiple Select

Which objects are about 1 foot in length?

• Desk

• Clock

• Eraser

• Bottlecap

• Textbook

Multiple Select

Which objects are about 1 yard in length?

• Desk

• Clock

• Eraser

• Bottlecap

• Poster

Open Ended

If you have walked 20 minutes, then you have likely walked about a mile. What benchmark could you use for a mile? For example: The distance a person walks to school could be about 1 mile.

These are the customary units for measuring liquid volume.

Remember these sizes to answer the next few questions.

Multiple Choice

A water bottle could hold...

• about 1 cup

• about 1 quart

• about 1 pint

• about 1 gallon

Multiple Choice

A fishbowl could hold...

• about 1 cup

• about 1 quart

• about 1 pint

• about 1 gallon

Multiple Choice

A flower pot could hold...

• about 1 cup

• about 1 quart

• about 1 pint

• about 1 gallon

Multiple Choice

A small milk carton could hold...

• about 1 cup

• about 1 quart

• about 1 pint

• about 1 gallon

Consider the objects shown and their weights.

Find at least one object in your house that would weigh about 1 ounce, 1 pound, or 1 ton. Record your observations.

Multiple Choice

Which food could you use as a benchmark to describe an ounce?

• a dozen eggs

• a slice of bread

• a block of cheese

• a bunch of bananas

Multiple Choice

Which animal could weigh about a ton?

• a horse

• a snail

• a pigeon

• a goldfish