Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly ...

Infinitely many copies of a 13-sided shape can be arranged with no overlaps or gaps in a pattern that never repeats. David Smith, Joseph Samuel Myers, Craig S. Kaplan and Chaim Goodman-Strauss (CC BY ...

In this session the children think of symmetrical shapes they have observed in objects - such as buildings - and then recreate these together in groups. 1: Warm up: Moving parts of the body in ...

Miriam Rossi, a professor of chemistry at Vassar College, offers the following reply: Snowflakes are symmetrical because they reflect the internal order of the water molecules as they arrange ...