1. Personal Measurement References
When you don’t have a measurement tool such as a ruler, meter stick, or measuring tape around, you can use a personal measurement reference to estimate the unknown measurement. Must be a solid item that does not change in size.
For example: Length of a paper clip- About 1 inch
Width of a doorway- About 1 meter

2. Meter Stick

3. Use a ruler or meter stick to find objects that are about 1 cm, 1 decimeter, and 1 meter in length Page. 98 Math journal

4. Unit of Measure
Personal References
1 Centimeter (cm)
1 Decimeter (dm)
or 10 Centimeters (cm)
1 Meter (m)

5. Page 99
Use your personal references to estimate…
Length of math journal
Length of pencil
Height of your desk
Height of your partner’s body
Distance from Nevada to Kansas on carpet map