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March 20, 2017 - Personal Reference Units
Students learned about “personal reference units” today in math. Personal reference units help us with estimating length. We compared actual units to parts of our body and decided to use these:
Unit Part of the Body
Centimeter Width of pinky finger
Inch Width of two fingers (index and middle fingers)
Decimeter (10 cm.) Gentle “stop sign” with hand
Foot From elbow to tips of fingers
Yard “Dab” (one elbow bent & other arm stretched out)
Meter Wingspan (both arms stretched out to the sides)
Students have been asked to show you tonight at home. I recommend you ask them to “Show me your [unit].” Be sure to ask about the yard a lot. That is their favorite one!
Thank you for your support!