In this activity, students make their own folded paper polygon to explore shapes up close.
Topology is the mathematical study of shapes and spaces.
Topology involves looking at the shapes that result through stretching, transforming, deforming, folding and twisting. Tearing, on the other hand, is not allowed!
Some of the shapes involved include polygons and circles which can be manipulated in space to create different shapes.
These puzzles are a great way for students to explore 2-dimensional shapes in 3-dimensional space.
Flexagons are folded paper polygons that have the fascinating property of changing their faces when they are flexed.
Flexagons can be made from a pattern of squares or equilateral triangles. A tetra-tetra-flexagon is made from a folded paper rectangle that is 4 squares long and 3 squares wide.
This pattern for a tetra-tetra flexagon was created by Jill E. Britton, a mathematician at Camosun College in Victoria BC.