This origami hexaflexagon is an action model paper design. Learn how to fold it by watching this video. Then, turn it till your fingers hurt.
Origami a Hexaflexagon
Here's a great excuse to play with your food—and learn some math while you're at it. We've all seen a hexaflexagon folded out of paper, but how about a burrito? Vi Hart, a "mathmusician" over at the Khan Academy, came up with the Flex Mex, a burrito folded into a hexaflexagon ...more