Unit 8
A C T I V I T Y 21
AC TIVIT Y
Use after
Display the following empty cartons: small milk carton (8-ounce size), 1-pint carton,
1-quart carton, 1-gallon carton, and a 1-liter container.
Unit 8, Session 3.6
Capacity
30 MIN
CLASS
Vocabulary
cup
pint
quart
gallon
liter
I am going to fill this measuring cup to the 1-cup mark. Do you think this
amount of water will fill this small milk carton?
Materials
• empty containers that hold
1 cup, 1 pint, 1 quart, 1 gallon,
and 1 liter
• measuring cup
• Activity 21 Master (see below)
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1 quart
1 gallon
1 liter
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Activity 21
MASTER
NOTE Students decide how the capacity of a
container compares to a given unit.
Hold up the pint-size carton. How many cups of water do you think this pint carton
will hold? Have students complete the following sentence written on the board:
cups will fill the 1-pint carton.
How many pints do you think it will take to fill a quart carton? How many quarts
do you think it will take to fill a gallon container? Demonstrate each situation with
containers and water.
If you had to use one of these containers (cup, pint, quart, or gallon) to fill a
bathtub, which would you use?
Now let’s pour the water from a quart container into a liter container. What does
this show about the size of a quart compared to the size of a liter?
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“They’re about the same size.”
“A liter is a little more than a quart.”
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Use after Unit 8, Session 3.6
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Predict about how many liters it will take to fill a gallon container. Demonstrate
with containers and water.
PR AC TICE
In the Activity 21 Master, students determine how the capacity of a container compares
to a given unit.
DIFFERENTIATION : Suppor ting the Range of Learner s
Explain that capacity is the amount of water or other material it takes to
fill a container. Explain that just as we can show length with equal measures (such as
12 inches ⫽ 1 foot), we can also show capacity with equal measures. Fill various
containers to show equal measures, such as 2 cups = 1 pint.
Unit 8: Twos, Fives, and Tens
Session 3.6 (End-of-Unit Assessment)