1. Today we will be learning about Metric Units of Length
Good Afternoon!
Today we will be learning about
Metric Units of Length
Let’s warm up :
1) How many inches are in 4 feet?
1) 48 inches
2) How many feet is 60 inches?
2) 5 feet
3) 12 quarts
3) How many Quarts is 3 gallons?
4) How many Pounds is 7 tons?
4) 14,000 tons
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2. Let’s review what we did in the previous chapter
CONVERT: Change from one unit to another, such as from feet to inches.
Change Larger to Smaller units
To change to a smaller unit, multiply.
Example: How many inches are in 6 feet?
12 inches = 1 foot
6 feet = 6 x 12 = 72 inches
Change Smaller to Larger units
To change to a Larger unit, divide.
Example: How many feet is 48 inches?
1 foot = 12 inches
48 inches = 48 ÷ 12 = 4 feet
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3. Simple Conversion Tables
Review
Simple Conversion Tables
Inches
Feet
Yards 12 1 24 2 36 3 48 4 60 5 72 6 84 7 96 8
108 9
Feet
Yards
Miles
5,280
1,760 1
10,560
3,520 2
15,840 3
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4. Simple Conversion Tables
Review
Simple Conversion Tables
Cups
Pints
Quarts
Gallons 2 1 4 6 3 8 10 5 12 14 7 16
Ounces
Cups
Pounds 8 1 16 2 24 3 32 4 40 5 48 6
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5. Convert Gallons to Quarts
Review
Convert Gallons to Quarts
To change to a smaller unit, multiply.
Example: How many Quarts is 4 gallons?
We are given,
4 gallons = __ quarts
4 x 4 = 16
4 gallons = 16 quarts
4 gallons is equal to 16 quarts.
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6. Convert Ounces to Pounds
Review
Convert Ounces to Pounds
To change to a Larger unit, divide.
Example: How many Pounds is 560 ounces?
We are given,
560 ounces = __ Pounds
560 ÷ 16 = 35
560 ounces = 35 Pounds
560 ounces is equal to 35 Pounds .
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7. Convert tons to pounds Review To change to a smaller unit, multiply.
Example: How many Pounds is 2 tons?
We are given,
2 tons = __ pounds
2 x 2,000 = 4,000
2 tons = 4,000 pounds
2 tons is equal to 4,000 pounds.
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8. Today we will learn about the
Metric Units of Length
Centimeters (cm), millimeters (mm), decimeters (dm), and kilometers (km) are used to measure length in the metric system.
1 cm
1 mm
1 dm
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9. Simple Conversion Tables Metric Units of Length
10 millimeters (mm) = 1 centimeter (cm)
10 centimeters (cm) = 1 decimeter (dm)
100 centimeters = 1 meter (m)
1,000 meters = 1 kilometer (km)
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10. Convert meters to millimeters
To change to a smaller unit, multiply.
Example: How many millimeters is 4 meters?
We are given,
4 meter = __ millimeter
4 x 1,000 = 4,000
4 meter = 4,000 millimeter
4 meter is equal to 4,000 millimeter .
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11. Convert centimeters to meters
To change to a Larger unit, divide.
Example: How many meters is 500 centimeters ?
We are given,
500 centimeters = __ meters
500 ÷ 100 = 5
500 centimeters = 5 meters
500 centimeters is equal to 5 meters .
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12. Convert kilometers to meters
To change to a smaller unit, multiply.
Example: How many meters is 4 kilometers?
We are given,
4 kilometers = __ meters
4 x 1,000 = 4,000
4 kilometers = 4,000 meters
4 kilometer is equal to 4,000 meter .
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13. ESTIMATE: An answer that is close to the exact answer.
Estimate
Estimate is used to get an idea of how large the object is; to pick appropriate units.
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14. Estimate and measure length
To estimate and measure length of an object:
Use a centimeter ruler, meter stick or tape measure to measure objects.
Choose the appropriate Metric unit.
Estimate the length to the nearest unit with the help of the mark closest to the end of the object.
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15. Estimate length of 478 centimeters in meters
478 centimeters closest to 500 centimeters.
500 centimeters = 500 ÷ 100 meters
= 5 meters
So, the estimated length of 478 centimeters is 5 meters.
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16. BREAK
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17. Click on the link below for some exciting puzzle
GAME
Click on the link below for some exciting puzzle
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18. Assignment Convert meters to millimeters: 1) 23 meters 2) 5 meters
Convert centimeters to meters:
3) 200 centimeters
4) 5,000 centimeters
3) 2 meters
3) 50 meters
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19. Convert millimeters to meters:
Convert meters to centimeters:
7) 9 meters
8) 3 meters
7) 300 centimeters
7) 900 centimeters
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20. Estimate length of the following in meters:
9) 295 centimeters
10) 432 centimeters
10) 4 meters
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21. Very Good!
Let's Review
Centimeters (cm), millimeters (mm), decimeters (dm), and kilometers (km) are used to measure length in the metric system.
1 cm
1 mm
1 dm
CONFIDENTIAL

22. Simple Conversion Tables Metric Units of Length
Review
Simple Conversion Tables
Metric Units of Length
10 millimeters (mm) = 1 centimeter (cm)
10 centimeters (cm) = 1 decimeter (dm)
100 centimeters = 1 meter (m)
1,000 meters = 1 kilometer (km)
CONFIDENTIAL

23. Convert meters to millimeters
Review
Convert meters to millimeters
To change to a smaller unit, multiply.
Example: How many millimeters is 4 meters?
We are given,
4 meter = __ millimeter
4 x 1,000 = 4,000
4 meter = 4,000 millimeter
4 meter is equal to 4,000 millimeter .
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24. Convert centimeters to meters
Review
Convert centimeters to meters
To change to a Larger unit, divide.
Example: How many meters is 500 centimeters ?
We are given,
500 centimeters = __ meters
500 ÷ 100 = 5
500 centimeters = 5 meters
500 centimeters is equal to 5 meters .
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25. Estimate and measure length
Review
ESTIMATE: An answer that is close to the exact answer.
12 x 779 = 9,348
12 x 800 = 9,600
Estimate
Estimate and measure length
To estimate and measure length of an object:
Use a centimeter ruler, meter stick or tape measure to measure objects.
Choose the appropriate Metric unit.
Estimate the length to the nearest unit with the help of the mark closest to the end of the object.
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26. See you in the next session.
You have done a nice job.
See you in the next session.
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