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Profile photo of Andrew Normand

Other ways of doing the same thing are having bits of trunking with one row of holes in the top and a plasticine landscape inside. Pupils can then just plot a one dimensional profile in their books.
For older pupils the idea of resolution can be discussed. A small toy figure won’t necessarily be detected and buildings may be unnoticed. All sorts of objects can be placed inside the box and taped in place. Only the largest, like a hammer, will give much of a clue as to their identity.
Restricting the holes used – every other hole every other row – can also change the perceived landscape.
If your CDT department has vacuum forming kit they might be able to help with creating a more interesting landscape. Arbor Scientific at http://www.arborsci.com/ do an Einstein curiosity for $20:
Product ID:  P2-6000
Product Name:  Einstein Alive
Description: Shine a source of light at the back of this mask and look at the concave side. The mask appears to reverse, as if Einstein is looking at you! Move back and forth, and his face turns to follow you.
It could make for an interesting exercise!
Themes: Imaging, space

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