Lesson 1
Measurement
Complete each conversion.
1. 1 foot = _____ inches
2. 1 yard = _____ feet
3. 1 meter = _____ centimeters
4. 1 kilometer = _____ meters
5. 1 day = _____ hours
6. 1 minute = _____ seconds
7. 1 pound = _____ ounces
8. 1 gallon = _____ quarts
Target:
Convert customary and metric measurements.
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Conversion: The process of renaming a measurement
using different units.
Determine the unit of measurement you should use in each situation.
a. dimensions of a room in your house
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feet
b. time until school is over
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hours or minutes
c. distance from home to your nearest mall
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miles or kilometers
Determine the unit of measurement you should use in
each situation.
d. amount of milk to buy for a family at the store
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gallons or quarts
e. angle to cut flooring in a bathroom
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degrees
Choose a reasonable estimate. Explain each choice.
a. length of a pen: 10 cm or 10 m
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10 cm. One meter is about the length of a yard stick.
b. distance to school on a bus: 20 m or 20 km
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20 km. You would not ride the bus 20 m (that’s about 60 feet).
c. amount of juice in a juice box: 1 pint or 1 gallon
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1 pint. A gallon of juice is much to large.
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When converting from a larger unit to a smaller unit,
MULTIPLY ( × ).
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When converting from a smaller unit to a larger unit,
DIVIDE ( ÷ ).
Complete each conversion.
a. 4 yards = ___ feet
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Find the conversion factor.
Yards are larger units, multiply.
4 yards = 12 feet
1 yard = 3 feet
4(3) = 12
b. 48 ounces = ___ pounds
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Find the conversion factor.
Ounces are smaller units, divide.
48 ounces = 3 pounds
1 pound = 16 ounces
48 ÷ 16 = 3
Complete each conversion.
c. 3 hours = ___ minutes
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Find the conversion factor.
Hours are larger units, multiply.
3 hours = 180 minutes
1 hour = 60 minutes
3(60) = 180
Convert 4 kilometers to centimeters.
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First convert 4 km to meters, then to centimeters.
Find the conversion factor for km to m:
1 kilometer = 1000 meters
Kilometers are larger units, multiply.
4(1000) = 4000
4 kilometers = 4,000 meters
Find the conversion factor for m to cm:
1 meter = 100 centimeters
Meters are larger units, multiply.
4000(100) = 400,000
4 kilometers = 400,000 centimeters
The second highest waterfall in Oregon is Salt Creek Falls in
the Cascade Mountain Range. It is 286 feet tall. Find its
height in:
a. inches.
b. yards.
a. Find the conversion factor.
 Feet are larger units, multiply.
 Salt Creek Falls is 3,432 inches tall.
b. Find the conversion factor.
 Feet are smaller units, divide.
 Salt Creek Falls is about 95.3 yards tall.
1 foot = 12 inches
286(12) = 3432
1 yard = 3 feet
286 ÷ 3 ≈ 95.3
Complete each conversion:
1.
40 meters = _____ centimeters
2.
120 minutes = _____ hours
3.
4 tons = _____ pounds
What is a real-world situation where you would need to
convert measurements?