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

Making quilt blocks is an excellent way to explore symmetry. A quilt block is made of 16 smaller squares. Each small square consists of two triangles. Study this example of a quilt block:


This block has a certain symmetry. The right half is a mirror image of the left, and the top half is a mirror of the bottom. You may say that this block has H symmetry because it mirrors the symmetry of the capital letter H.

Now take a look at the four kinds of symmetry used in this activity.


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