Pr

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Metric Meals ...
http//www.nsa.gov
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Metric Meals
A History of Measurement
B The Metric System
C Give it a try!
D Culminating Activity
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Metric Meals
A History of Measurement
After reading The History of Measurement, what
information do you know about metric measurement?
Use the space that is shaped like a trapezoid to
write your response
Discuss with your group what you wrote on your
own space
Agree on what information the group wants to
include in the center rectangular box
Copy your center box response on your worksheet
and share it with the rest of the class
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Metric Meals
B The Metric System
1. The prefixes in the metric system
Prefixes are short names and letter symbols for
numbers (powers of ten).
A prefix is attached to the front of a unit,
without a space.
As you go up the ladder of these prefixes, the
unit is multiplied in steps of 1000, or 103.
Going down the prefix scale, a unit is divided in
steps of 1000. In other words, it is multiplied
in steps of 0.001, or 1/1000.
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Metric Meals
B The Metric System
2. Conversion using equation
Procedure

• Write the question.

• Write the equation.

• Multiply both sides by the number to be
  converted.

• Resulting equation will be the answer.

Katies dog weighs 35 kilograms. How much is this
in grams?

• 1 kg 1000 g

• 35 x 1 kg 35 x 1000 g

• 35 kg 35000 g

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Metric Meals
B The Metric System
2. Conversion using equation
Pratice

• A race is 2500000 centimeters long. How is this
  in meters?

• Convert this meter measure to kilometers. 25000
  m ? km .

• How many milliliters in 4 liters of soda?

Katies dog weighs 35 kilograms. How much is this
in grams?

• 1 kg 1000 g

• 35 x 1 kg 35 x 1000 g

• 35 kg 35000 g

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Metric Meals
B The Metric System
3. The three main metric measurements
Using the text and the items on the board,
complete the chart for the three main metric
measurements.
Mass of a horse Thickness of a dime Width of a
piece of bread Capacity of a swimming pool Mass
of an orange Capacity of a tablespoon Width of
a football field
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Metric Meals
C Give it a try!
Part 1

• Select a unit to compare and measure each
  glassware height.

• Estimate the measurement.

• List the items from least to greatest height.

• Record the actual measurement.

• Use the actual measurement to number the item
  from least 1
• to greatest 3.

Part 2
Same questions for each glassware mass.
Part 3
Same questions for each glassware capacity.
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Metric Meals
C Give it a try!
Part 4 Writing Prompt
In a paragraph or more, describe for your teacher
the process you used to find the actual
measurement of the glasswares.
Before you begin writing, be sure you brainstorm
your ideas.

• Think about how you decided what unit you
  selected to use.

• Think about what instrument you decided to use.

• Think about how you made your measurements.

• Think about what conclusions you can draw from
  your
• estimation and the data.