Mathematics Measurement: Lesson 3 - Grade 8 (Page 5 of 9) in pdf

Mathematics Measurement: Lesson 3 - Grade 8 Page 5

What kind of tools would you use to measure capacity? (measuring cups

or other measuring containers) What units do you use to measure

capacity? (cup, quart, gallon, pint, milliliter, liter) There are others, but

these are the most important ones. Divide the units into customary and

metric units.

Customary

Metric

cup, quart, gallon, pint

milliliter, liter, kiloliter

Say:

Let’s put the units in order from the smallest to the largest in each

system. Write the symbol next to the unit.

Customary

Metric

cup (c)

milliliter (ml)

pint (pt)

liter (L)

quart (qt)

gallon (gal)

Say:

Which units would you use to measure the capacity of the following

items?

A. The amount of water used to fill a swimming pool (gallons)

B. The amount of milk in a cookie recipe (cups)

C. The amount of gasoline in your car (gallons)

Say:

The following capacity conversions are found on the Mathematics

Reference Sheet. There are no other ones to memorize.

8 fluid ounces = 1 cup

2 cups = 1 pint

2 pints = 1 quart

4 quarts = 1 gallon

Say:

Let’s talk about the metric system. A milliliter is about 10 drops of

medicine. A liter is a little more than a quart. Which units would you

use to measure the capacity of the following items?

A. The amount of water used to fill a swimming pool (kiloliters)

B. The amount of milk in a cookie recipe (milliliters)

C. The amount of gasoline in your car (liters)

D. The amount of cough medicine you take (milliliters)

Grade 8 Mathematics

Lesson 3, Measurement

Mathematics Measurement: Lesson 3 - Grade 8 Page 5