A fractal is a repeating pattern that displays and any scale. You can find fractals in nature (leaves, shells, ice), art and mathematics. Once you know about fractals you’ll see them all over the place.
Sierpinski Triangles are one way to have fun with fractals. Each girl can colour her own triangle and then you can build a larger triangle from them. You can even mail them off to the Fractal Foundation to become part of the world,s largest fractal.