centimeters (cm): unit of length = 100th of a meter (100 centimeter in a meter) inches (in): unit of length = 12th of a foot (12 inches in a foot) rounding: choosing the nearest whole unit whole unit: 1, 2, 3, 4, etc.
Find 3 objects in your classroom at different lengths. Measure the objects to the nearest whole unit using both centimeters and inches. Record your measurements.
1. Type of object
cm
in
2. Type of object
cm
in
3. Type of object
cm
in
Extension
*MP4: How can you relate this to something in real life?
Trade objects with your friends and measure the objects to the nearest whole unit in centimeters and inches.
*MP6: How do you know your answers are correct/reasonable?
Closure Recap today’s lesson with one or more of the following MP questions:
MP4: What conclusions can you make from the objects you are measuring? MP5: What tool did you use? Why? MP6: How did you know your answers were reasonable? MP8: What happens when you measured with inches instead of centimeters?