Problem Pictures
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PP2 CD-ROM cover

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


This harp has white strings, black strings and red strings. How are they arranged?

Why does the harp have such an unusual shape. Is there a reason for it or is it just decorative?


The photographs and screen images on this website are copyright and may not be reproduced without permission. Copyright Richard Phillips 2001/2007. Page updated 13 July 2005.