We are proud that Geometiles is part of Julia Robinson Mathematics Festival, a unique math event for kids at any level – from those struggling with math to those who enjoy tackling challenging problems. Julia Robinson Mathematics Festival is a math festival movement of “locally organized events that inspire K through 12 students to think…

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## Lefty or righty? A few words about chirality

Do you see anything unusual about this picture? These two boys are identical twins; but not just any twins: they are mirror twins! That means that many of their features are mirror images of each other. What you can’t see in the picture is that one of the boys is a left-handed and the other…

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## Calculus in a Chair

What can a chair teach us about integral calculus? Quite a bit, if you have right chair. British designer Julian Mayor made just such a chair: Mr. Mayor reckons the chair is much more comfortable than it looks; Igor (pictured sitting) certainly seems happy. Regardless of Igor’s comfort, the chair is a great illustration of what we mean…

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## Archimedes’ Earring

To be perfectly honest, I have no idea whether Archimedes wore earrings. However, I couldn’t help but think of him when I saw the posts on Kumiko’s earrings: If you look closely, you will see that the post is a cuboctahedron, which is one of the Archimedean solids. A cuboctahedron is roughly what you get…

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