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Visit this site: http://www.enarsson.nu//Flexagon/

Author:Magnus Enarsson
Description: "A flexagon is a polygon folded from paper with a very remarkable quality: you can turn it inside out to make it reveal hidden surfaces." History, including the original discovery of the tri-hexaflexagon by Arthur H. Stone, as he folded strips of paper left over from cutting American papers to make them fit into an English file; and illustrations of how to make a hexa-hexa-flexagon and how to flex the flexagon.

Levels: Middle School (6-8), High School (9-12), College, Research
Languages: English
Resource Types: Manipulatives, Recreations
Math Topics: Triangles and Other Polygons, Topology

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