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Measuring LENGTH. When we measure length we are looking at how far away something is, how tall or short it is, etc.

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Presentation on theme: "Measuring LENGTH. When we measure length we are looking at how far away something is, how tall or short it is, etc."— Presentation transcript:

1 Measuring LENGTH

2 When we measure length we are looking at how far away something is, how tall or short it is, etc.

3 The are 2 groups/categories for length….Customary and Metric

4 Customary length is what we use in the United States. It includes inches, feet, yards, and miles.

5 One inch is about the size of a small paperclip. It is the smallest customary measurement.

6 One foot is about the length of a piece of notebook paper.

7 One yard is about the length of a regular baseball bat.

8 One mile is about the length of a 20 minute walk. (7 times around the bus ramp at PCE)

9 12 inches=1 foot

10 3 feet = 1 yard

11 36 inches=1 yard

12 Metric length is what most of the world uses. It includes millimeters, centimeters, meters, and kilometers

13 A millimeter is about as thick as a dime.

14 A centimeter is about the width of your index finger.

15 Your arm span from finger to finger tip is about a meter.

16 A kilometer is more than a half a mile. (About 4 laps around bus ramp @ PCE)

17 Choosing the right UNIT

18 The distance from your home to school….Inches, Feet, or Miles?

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20 Is a football about 1 foot or 1 mile long?

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22 Is a math book about 11 yards or 11 inches?

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24 Would you use a ruler or yard stick to measure the playground?

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26 Would you use a ruler or yard stick to measure the width (thickness) of a book?

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