Problem Pictures
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PP3 CD-ROM cover

This picture is taken from Problem Pictures Numbers, a CD-ROM of photographs with activities for mathematics teaching.

Pedal bin

What shape is this pedal bin?

Try to match the squares on the floor with their reflections in the bin.

How many squares can you see in two places: on the floor and reflected in the bin?

What happens to the straight lines on the floor when they are reflected in the bin?


The photographs and screen images on this website are copyright and may not be reproduced without permission. Copyright Richard Phillips 2001/2009. Page updated 6 October 2009.