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How to make a hexaflexagon


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Have you ever folded scraps of paper into shapes and discovered something new? In this lesson, Vi Hart dives into the fun mathematics behind the hexaflexagon, a folding paper puzzle invented in 1939.

Additional Resources for you to Explore

This video is based on a true story. Arthur H. Stone really did invent the hexaflexagon after playing with the paper strips he'd cut off his too-wide British paper, and really did start a flexagon committee! For more videos about hexaflexagons, watch Part 2 of Vi Hart's video series here:
Read more about hexaflexagons in Martin Gardner's book of Puzzles and Games:
Find patterns for a large variety of flexagons:

Learn how to host your own Flexagon Party:
Other TED-Ed Math Lessons:

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