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4. Metric System
Prefix Symbol Factor
Kilo k 1000
Hecto h 100
Deka da 10
------ ------ 1
Deci da 0.1
Centi c 0.01
Milli m 0.001
5. Customary Unit
Common Uncommon
12 inches 1feet
inch rod/pole/perch
3 feet 1 yard
foot chain
512 yards 1 rod
yard furlong
22 yards 1 chain
mile dram
10 chains 1 furlong
ounce ------
8 furlongs 1 mile
pound ------
1 nauctical
ton ------ 6076.12 mile
6. Converting Bet ween the Metric System and
Customary Unit
1 Meter 1 Yard 3 Feet 100
Centimeters
1 Decimeter 4 Inches
2.5 25 Millimeters 1 Inch
Centimeters
30 3 decimeters 30 12 Inches
Centimeters Centimeters
When converting between the Metric System and the Customary Unit,
change the unit to the other system, just like the chart. For example, if you
want to see how many centimeters are in a yard, you can change one yard to
a unit in the Metric System. 1 yard equals 1 meter. 100 centimeters are in a
meter. There are 100 centimeters in a yard.
You just have to change the units around until you get the correct answers.
7. Tools We Use
Calendar Clocks
You use calendars to measure the You clocks to measure time of the
day, week, month, year, decade, etc. day.
Teaspoons/Tablespoons Thermometer
You thermometers to measure the
You teaspoons/tablespoons when
temperature of the environment.
baking or cooking to measure small
amount of ingredients.
Ruler Scale
You rulers to measure the length or You scales to measure the weight or
height of an object. mass of an object.
8. How Measurement is used in
Daily Life
Used to find the...
Know what time it is
Know the distance from
one place to another
Know what angle it is
9. The Connection Bet ween Measurement
and Materials
When working with materials, you need to be
able to measure it to see the length, and then
cut it out to make a product. For example, if you
want to make a plastic cup, you need to
measure the amount of plastic needed to make
the right cup. If you don’t, the cup might turn
out too small or big.
