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Reading a Straight Edge

Reading a Straight Edge. Created By: Dr. A. Dávila. Look at your straight edge closely to identify the customary (in for inches, ft for feet) or the metric side (cm for centimeter, mm for millimeter). Most straight edge rulers have an excess edge.

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Reading a Straight Edge

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  1. Reading a Straight Edge Created By: Dr. A. Dávila

  2. Look at your straight edge closely to identify the customary (in for inches, ft for feet) or the metric side (cm for centimeter, mm for millimeter).

  3. Most straight edge rulers have an excess edge.

  4. If it does have an excess edge, start measuring from the first mark.

  5. 1 centimeter Each number identifies a whole.

  6. whole centimeter Notice the longer line segment and its corresponding number.

  7. whole centimeter Notice the longer line segment and its corresponding number. This identifies the first whole centimeter.

  8. fractions of a centimeter Count the number of spaces between each line segment. Each space represents a millimeter. How many millimeters make a whole centimeter?

  9. 1 millimeters or 0.1 (1/10) of a cm Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge).

  10. 2 millimeters or 0.2 (2/10 or 1/5) of a cm Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge).

  11. 3 millimeters or 0.3 (3/10) of a cm Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge).

  12. 4 millimeters or 0.4 (4/10 or 2/5) of a cm Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge).

  13. 5 millimeters or 0.5 (5/10 or 1/2) of a cm Notice the first small line segment. This small line segment represents the first millimeter (on the meter side of a straight edge).

  14. one centimeter one millimeter It takes 10 millimeters to make a whole centimeter.

  15. one decimeter How many centimeters make a whole decimeter?

  16. one decimeter is equal to 10 cm It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter?

  17. 1/10 (0.1) of a decimeter It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter?

  18. 2/10 or 1/5 (0.2) of a decimeter It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter?

  19. 3/10 (0.3) of a decimeter It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter?

  20. 4/10 or 2/5 (0.4) of a decimeter It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter?

  21. 5/10 or 1/2 (0.5) of a decimeter It takes 10 centimeters to make a whole decimeter. How many decimeters make a meter?

  22. Relating the Metric System (Systéme Internationale) to the Decimal System Created By: Dr. A. Dávila

  23. Meter (m) is the basic unit for length or distance

  24. 10 millimeters is equivalent to a centimeter

  25. 10 centimeters is equivalent to a decimeter

  26. 10 decimeters is equivalent to a meter

  27. 10 meters is equivalent to a dekameter

  28. 10 dekameters is equivalent to a hectometer

  29. 10 hectometers is equivalent to a kilometer

  30. The metric system is similar to the decimal system.

  31. multiply by 10 Each place to the right is 10 times greater than the previous

  32. divide by 10 Each place to the left is 10 times smaller than the previous place

  33. 6 kilometers is equal to

  34. 6 kilometers is equal to 60 hectometers

  35. 6 kilometers is equal to 60 hectometers 600 dekameters

  36. 6 kilometers is equal to 60 hectometers 600 dekameters 6000 meters

  37. 6 kilometers is equal to 60 hectometers 600 dekameters 6000 meters 60000 decimeters

  38. 6 kilometers is equal to 60 hectometers 600 dekameters 6000 meters 60000 decimeters 600000 centimeters

  39. 6 kilometers is equal to 600 dekameters 6000 meters 60000 decimeters 600000 centimeters 6000000 millimeters

  40. 8 meters is equal

  41. 8 meters is equal to 80 decimeters

  42. 8 meters is equal to 80 decimeters equal to 800 centimeters

  43. 8 meters is equal to 80 decimeters equal to 800 centimeters equal to 8000 millimeters

  44. 8 meters is equal to

  45. 8 meters is equal to 0.8 dekameters

  46. 8 meters is equal to 0.8 dekameters equal to 0.08 hectometers

  47. 8 meters is equal to 0.8 dekameters equal to 0.08 hectometers equal to 0.008 kilometers

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