Symmetry is a mathematical principle that is used a lot in art as well. Students learn about symmetry and lines of symmetry in geometric shapes during the elementary grades. Their understanding of symmetry helps them in higher level geometry, but can also help them appreciate and analyze a number of works of art as well. Imagine that--mathematics is a basis for aesthetic experiences.
Symmetry is all around us in nature, and many works of art are judged to be more attractive when there are clear lines of symmetry which come from a central point.
Last year for a skills lab series, I did a two-week exploratory titled "Mathematics and Art". Symmetry was the first topic studied. I made a powerpoint using pictures of nature, buildings, and works of art that had clear lines of symmetry. I found the pictures by searching www.images.google.com. I just put in the word "symmetry".
This year, I briefly revived that powerpoint and students once again enjoyed viewing the pictures and identifying the lines of symmetry.
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