Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

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Teacher's Lab
Shape and Space in Geometry
IntroductionAbout ShapeAbout Space

background info. link

Can you judge an object by its shadow? In this activity you will be asked to determine if a shadow can be produced by a particular shape.

For example, suppose you had a shadow that was a square.

A cube could cast that shadow.

So could a triangular prism.

But a sphere could not.

Can you predict what shadows a cube can cast?


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