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The Metric System. “I am 10 times better than the English system of measurement.”. The Metric System. The metric system is a measurement system based on our decimal (base 10) number system, making it very easy to use.

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I am 10 times better than the english system of measurement

The Metric System

“I am 10 times better than the English system of measurement.”


The metric system
The Metric System

  • The metric system is a measurement system based on our decimal (base 10) number system, making it very easy to use.

  • Most other countries and all scientists and engineers use the metric system for measurement.

    (This is why the metric system is also called

    “THE SYSTEM INTERNATIONALE”)

  • Basic units:

    • METER (length)

    • GRAM (mass)

    • LITER (volume)



Metric prefixes
Metric Prefixes

  • The basic units are METERS, GRAMS, and LITERS

  • The metric system also uses prefix modifiers that are multiples of 10.



Meters
Meters

  • Meters measure length or distance

  • A meter is about the width of a doorway


Centimeters
Centimeters

  • The value of the prefix “centi” is 1/100th

  • How many centimeters are in 1 meter?

  • One centimeter is about the width of a large paper clip

  • or the width of your pinky

  • fingernail


Millimeters
Millimeters

  • The value of the prefix “milli” is 1/1000th

  • One millimeter is about the thickness of a dime.

  • How many millimeters are in one meter?


Kilometers
Kilometers

  • The value of the prefix “kilo” is 1,000

  • How many meters are in

    one kilometer?

  • 1.6 kilometers is about 1 mile

  • A kilometer is about six city blocks or 10 football fields.


Gram

  • Grams are used to measure the mass of an object.

  • Mass is similar to weight

  • 1 gram is the mass of a small paper clip.


Kilograms
Kilograms

  • The value of the prefix “kilo” is 1,000

  • 1 kilogram weighs about as much as 6 apples or 2 pounds.

  • How many grams are in one kilogram?


Milligrams
Milligrams

  • The value of the prefix “milli” is 1/1000th

  • A milligram weighs about as much as a grain of salt.

  • How many milligrams are in one gram?


Liters
Liters

  • Liters are used to measure the amount of space (volume) that a liquid occupies.

  • 1 liter is half of a 2 liter bottle of Coke or other soda.

  • A liter is a little bit larger than a quart.

2 Liter Soda


Milliliters
Milliliters

  • 1 milliliter is about the amount of one eyedropper full of liquid.

  • The value of the prefix “milli” is 1/1000th

  • How many milliliters are in one liter?


A thinking question
A Thinking Question…

  • How many 2 liter bottles would make up one kiloliter?


What units would you

use to measure each of

the following items?















Changing metric units
Changing Metric Units bracelet?

  • To change from one unit to another in the metric system you simply multiply or divide by a power of 10.


To change from a larger unit to a smaller unit you need to multiply

To change from a larger unit to a smaller unit, you need to multiply.

1 km x 1000 = 1000 m

1 m x 100 = 100 cm

1 cm x 10 = 10mm


Place values of metric prefixes1
Place Values of Metric Prefixes multiply.

Movethe decimal point to the right to multiply.



To change from smaller units to larger units you divide by a power of ten

To change from smaller units to larger units you divide by a power of ten.

1000mm ÷ 10 = 100cm

100cm ÷ 10 = 10dm

10dm ÷ 10 = 1m


Place values of metric prefixes3
Place Values of Metric Prefixes power of ten.

Movethe decimal point to the left to divide.



Sorry
Sorry! power of ten.

  • That is not the BEST choice!

Try again!


You're on a roll!! power of ten.


Thumbs up! power of ten.


You are first rate!! power of ten.


Way to shine! power of ten.


Awesome job! power of ten.


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