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Metric Units of Length: Main Idea & Vocabulary | Lesson 11-7

Learn to select appropriate units and convert metric lengths (cm, mm, m, km) with examples. Practice conversions from larger to smaller units and vice versa. Enhance understanding of the metric system and rulers. Check elapsed time scenarios.

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Metric Units of Length: Main Idea & Vocabulary | Lesson 11-7

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  1. Splash Screen

  2. Five-Minute Check (over Lesson 11–7) Main Idea and Vocabulary Key Concept: Metric Units of Length Example 1: Select an Appropriate Unit Example 2: Convert Larger Units to Smaller Units Example 3: Convert Smaller Units to Larger Units Metric Rulers Lesson Menu

  3. I will choose an appropriate metric unit for measuring length and convert metric units of length. • metric system • centimeter • millimeter • meter • kilometer Main Idea/Vocabulary

  4. KC 1

  5. Select an Appropriate Unit Which unit would you use to measure the height of a street light pole: millimeter, centimeter, meter, or kilometer? The height of a street light pole is much greater than the width of a pinky finger but much smaller than 6 city blocks. Answer: So, a meter is an appropriate unit of measure. Example 1

  6. A B C C Which unit would you use to measure the width of a text book? • millimeter • centimeter • meter • kilometer Example 1

  7. Convert Larger Units to Smaller Units An art project required strips of paper 8 centimeters long. How many millimeters long is each strip? Example 2

  8. 8 cm = mm Convert Larger Units to Smaller Units You need to convert 8 centimeters to millimeters. A larger unit (cm) is being converted to a smaller unit (mm), so you will multiply. 8 × 10 = 80 Since 1 cm = 10 mm, multiply 8 by 10. Answer: So, 8 cm = 80 mm. The art project required strips of paper 80 millimeters long. Example 2

  9. A B C D Convert 5 meters to centimeters. • 5 cm • 50 cm • 500 cm • 5,000 cm Example 2

  10. Convert Smaller Units to Larger Units A high school track measures 250 meters. Luis ran 12 times around the track. How many kilometers did he run? Step 1 Find the length in meters. number of laps length of one lap total length 12 × 250 m = 3,000 m Example 3

  11. 3,000 m = km Convert Smaller Units to Larger Units Step 2 Convert 3,000 meters to kilometers. A smaller unit (m) is being converted to a larger unit (km), so you will divide. 3,000 ÷ 1,000 = 3 Since 1,000 m = 1 km, divide 3,000 by 1,000. Answer: So, 3,000 m = 3 km. Luis ran 3 kilometers total around the high school track. Example 3

  12. A B C D Convert 70 millimeters to centimeters. • 7 cm • 70 cm • 700 cm • 7,000 cm Example 3

  13. End of the Lesson End Lesson

  14. Five-Minute Check (over Lesson 11–7) Image Bank Math Tool Chest Metric Rulers Resources

  15. A B C D (over Lesson 11–7) Find the elapsed time. 6:40 A.M. to 11:17 A.M. • 4 h 37 min • 4 h 35 min • 5 h 34 min • 5 h 32 min Five Minute Check 1

  16. A B C D (over Lesson 11–7) Find the elapsed time. 1:25 P.M. to 8:10 P.M. • 5 h 6 min • 5 h 12 min • 6 h 32 min • 6 h 45 min Five Minute Check 2

  17. A B C D (over Lesson 11–7) Find the elapsed time. 10:36 A.M. to 4:26 P.M. • 5 h 55 min • 5 h 50 min • 5 h 40 min • 6 h 10 min Five Minute Check 3

  18. A B C D (over Lesson 11–7) Find the elapsed time. 10:13 P.M. to 7:06 A.M. • 8 h 53 min • 8 h 52 min • 7 h 53 min • 7 h 57 min Five Minute Check 4

  19. A B C D (over Lesson 11–7) Find the elapsed time. 9:40 A.M. to 1:55 P.M. • 4 h 5 min • 4 h 15 min • 4 h 25 min • 4 h 35 min Five Minute Check 5

  20. A B C D (over Lesson 11–7) Find the elapsed time. 6:22 P.M. to 2:34 A.M. • 8 h 24 min • 8 h 16 min • 8 h 12 min • 8 h 6 min Five Minute Check 6

  21. End of Custom Shows

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