The hexaflexagon
Learn about hexaflexagons with Vihart in these two videos. After you see how neat they are, there’s a third video on constructing one for yourself.
Part 1: http://youtu.be/VIVIegSt81k
Part 2: http://youtu.be/paQ10POrZh8
Part 3: http://youtu.be/y2N6DAzCiOE





