Fourth Grade
Unit 8
Measurement
There is a lot of information that
you will need to know about
measurement!
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Length
Elapsed Time
Weight
Capacity
Temperature
Know it...about length!
When we are measuring length, we are trying to figure
out how long an object is.
There are two systems of length that we use to
determine length--- the Customary System and the
Metric System.
Customary Length
Inch (in.)
Between your
knuckles on
your first
finger
Foot (ft.)
The
length of
a license
plate
Yard (yd)
Mile (mi)
Length of
a
baseball
bat
Walk
about
1mile in
20
minutes
12 inches = 1 foot
36 inches = 1 yard
3 feet = 1 yard
1,760 yards = 1 mile
5,280 feet = 1 mile
Know appropriate measures
for distances!
• Measure small objects using inches,
such as erasers and books.
• If it’s as big as you are, use feet!
• If it is as big as your backyard, use
yards!
• Miles measures the most distance.. You
go far in your car!
Metric Length
centimeter
(cm.)
Thickness
of your
finger
decimeter
(dm.)
the
distance
across
your hand
meter
(m.)
Door width
kilometer
(km.)
We can
walk 1 km
in about 10
minutes.
About half
a mile.
10 millimeters = 1 centimeter
10 centimeters = 1 decimeter
100 centimeters = 1 meter
1,000 meters = 1 kilometer
Use prefixes to help you
remember conversions!
Know appropriate measures
for distances!
• Measure small objects using
centimeters, such as erasers and books.
• If it is as big as your backyard, use
meters!
• Kilometers measures the most
distance.. You go far in your car!
Know it…about capacity!
• Capacity tells the amount a container
can hold.
• Capacity can be measured using
measuring cups or measuring spoons.
• There are 2 systems we use to
measure capacity---customary and
metric!
Know it..about customary
capacity!
• There are 4 main units of customary
capacity!
• Gallons—Gal
• Quarts—Qt
• Pints—Pt
• Cups--C
Use the “Big G” to help with
conversions!
P
P
P
P
P
P
P
P
QQ
QQ
CC
CC
CC
CC
CC
CC
CC
CC
•
•
•
•
•
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
8 pints = 1 gallon
16 cups = 1 gallon
Know it..about metric
capacity!
• There are 2 main units of customary
capacity!
• Liter– L
• Milliliter-- mL
A milliliter is about a drop.
There are 1,000
milliliters in one liter.
1,000 mL = 1 L
Know it…about elapsed time!
• Elapsed time describes the passing of time.
• It answers the question: How much time has
passed?
• Knowing how to tell time is a MUST for
calculating elapsed time.
11
Each large number on a
clock represents 5
minutes.
12
1
10
2
9
60 minutes = 1 hour
3
8
4
7
6
5
Know strategies for
calculating elapsed time!
• Draw an analog clock to help you!
• Make a table like this:
Activity
• Create a timeline.
Start
Time
End Elapsed
Time
Time
Know it…about weight!
• “How heavy is it?”
• We use two systems to measure weight, or
mass—Customary and Metric.
• Scales can be used to measure weight.
Know it…about
customary weight!
• There are two units we use in the
customary system of weight.
1 lb = 16 oz.
Know it…about
metric weight!
• There are two units we use in the
metric system of weight.
1,000 g= 1 kg
kilo= 1,000