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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?


Can you match the mass and length or height of these things to their pictures?

Measure for Measure

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

Measure Our Heights

Age 5 to 7 Challenge Level:

The first boy boy is trying to find out how tall he is.  I think he is finding it hard.
In the second picture the little boy is trying a different way, but still finding it hard.


This girl is being measured in a different way and the others are discussing how good that way is for finding her height.

What things (in the pictures) might they be finding hard?
Can you find a better way to find out the height of a friend?
What will you use? Try it and see how tall they are.
Can you give answers in m as well as cm ?
Photograph Acknowledgements