noun
- a flat, folded paper model that can be flexed to reveal hidden surfaces or patterns
Usage: mathematics and recreational mathematics; often used in educational contexts
Examples
- The teacher showed the class how to fold a hexaflexagon, a type of flexagon with six sides.
- By flexing the flexagon along its creases, you can reveal different colored faces.
- Children enjoy making flexagons as a hands-on introduction to geometry.
- The flexagon was invented in the 1950s and has become a popular mathematical toy.
- Each time you flex the flexagon, a new pattern or number appears on the surface.