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Hand Span

Use your hand span to measure the distance around a tree trunk. If you ask a friend to try the same thing, how do the answers compare?

Measure for Measure

This article, written for students, looks at how some measuring units and devices were developed.

Sizing Them Up

Can you put these shapes in order of size? Start with the smallest.

Measure Our Heights

Age 5 to 7 Challenge Level:
Does the height of your friend compared with your height make a difference?  Is it easier if you are taller or shorter than your friend, or can you come up with a method so that it does not matter?
What equipment do you need?