Transcript Document

Measurement
Grade 3
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Are You Ready?

Choose the better estimate.
(a) 80 inches tall (b) 80 feet tall
(a) 2 inches high (b) 20 feet high
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Measure to the Nearest Inch

Estimate and then measure the length of the
crayon. Use a nonstandard unit such as
your hand and paper clips.

Step 1: Use the width of your hand to measure
the crayon. Estimate: about one hand width
CRAYON

Step 2: Estimate the length using paper clips.
Lay paper clips end to end along the picture of
the crayon. Estimate: about 3 paper clips.
CRAYON
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Measure to the Nearest Inch

Estimate and then measure the length of the
crayon to nearest inch.


Step 1: Line up the left end of the crayon with
the left end of the ruler.
Step 2: Find the inch mark that is closest to the
other end of the crayon.
1 inch
Estimate: the
crayon is about
3 inches long
In.
1
2
3
Measure: the
crayon is 3
inches long
CRAYON
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Try This!

Name three objects that are about 1
inch long or wide.
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Measure to the Nearest Half
Inch
The right end of the
ribbon is closer to the
2½ inch mark than to
either the 2-inch mark
or the 3-inch mark
In.
1
2
3
To the nearest half inch, the ribbon is 2 ½ inches long.
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Measure to the Nearest Half
Inch
The right end of this
ribbon is closer to the
2½ inch mark than to
the 3-inch mark
In.
1
2
3
To the nearest half inch, the ribbon is 2 ½ inches long.
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Measure to the Nearest Half
Inch
The right end of this
ribbon is closer to the
3-inch mark than to the
2½ inch mark
In.
1
2
3
To the nearest half inch, the ribbon is 3 inches long.
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Try This!

One piece of train track measures 5 ½
inches long. Between which two inch
marks does the right end of the track
lie?
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Customary Units of Length
1 foot = 12 inches
1 yard = 3 feet
1 yard = 36 inches
1 mile = 1,760 yards
1 mile = 5,280 feet
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Customary Units of Length
A quarter is
about 1 inch
(in.) wide
The length of a
baseball bat is about 1
yard (yd).
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The length of a
sheet of notebook
paper is about 1
foot (ft).
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Try This!

1.
Choose the better estimate.
The distance across a city
1.
2.
2.
5 miles
5 feet
The width of a stamp
1.
2.
1 yard
1 inch
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Try This!

1.
2.
3.
4.
5.
Complete.
12 ft = __ yd
3 ft = __ in.
2 yd = __ ft
24 in. = __ ft
9 ft = __ yd
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Customary Units of Capacity

Capacity is the amount a container can hold.
You can use customary units to measure
capacity.
Customary Units of Capacity
1 pint = 2 cups
1 quart = 2 pints
1 gallon = 4 quarts
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Customary Units of Capacity
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Try This!

1.
2.
Write in order from least capacity to
greatest capacity.
1 qt 3 c 1 pt
1 gal 5 qt 6 pt
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Try This!

1.
2.
3.
4.
5.
Complete.
2 pt = __ c
4 qt = __ gal
3 qt = __ pt
2 pt = __ qt
8 c = __ pt
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Customary Units of Weight
16 ounces = 1 pound
You can measure weight in pound and ounces.
A slice of bread weighs about 1 ounce.
A soccer ball weighs about 1 pound.
Use a balance scale and 1-ounce and 1-pound measures.
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Try This!

1.
2.
Write in order from the least weight to
the greatest weight.
20 oz
1 lb
12 oz
2 lb
25 oz
40 oz
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Try This!

1.
2.
3.
4.
Find the missing measure.
1 lb = __ oz
32 oz = __ lb
8 oz = __ lb
1 ½ lb = __ 24 oz
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Metric Units of Length

Decimeters (dm), Centimeters (cm)
and Millimeters (mm) are metric units
of length.
This piece of chalk is 1 decimeter long.
The width of a
finger is about 1
centimeter.
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Metric Units of Length

You can measure longer lengths in meters
(m) and kilometers (km).
Metric Units of Length
1 meter = 10 decimeters
1 meter = 100 centimeters
1 kilometer = 1,000 meters
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Try This!

1.
2.
3.
Complete.
2 m = __ cm
5,000 m = ___ km
30 dm = __ m
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Metric Units of Capacity
You can use units such as liters and milliliters to estimate how much a
container can hold.
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Metric Units of Capacity
1 liter = 1,000 milliliters
1 L = 1,000 mL
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Try This!

1.
2.
3.
Complete.
3 L = __ mL
6,000 mL = __ L
5 L = ___ mL
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Metric Units of Mass
1kg = 1000 g
You can use kilograms to measure how heavy an object is.
A paper clip is about 1 gram.
The book is about 1 kilogram.
Use a balance scale and 1-gram and 1-kilogram measures.
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Try This!

Complete.
1.
2.
3.
2,000 g = __ kg
6,000 g = __ kg
1 kg = __ g
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Let us take a break!
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Assessment

1.
2.
3.
4.
5.
Complete.
__ qt = 4 gal
2 pt = __ c
__ oz = 3 lbs
2 gal = __ pt
__ ft = 9 yd
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Assessment

6.
7.
8.
9.
10.
Complete.
1,000 g = __ kg
90,000 mL = __ L
5 m = __ cm
20 dm = __ m
30 km = __ m
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Assessment
11.
12.
Suppose you have 2 gallons of juice
for 15 people. If you serve the juice in
1-cup glasses, could everyone have 2
glasses each?
Your school is having a relay race.
The race is 2 km long. Each person
will run 100 m. How many people
should be on each team? Explain.
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Great Job!

Remember to do the practice sheets!!
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