Teaching Materials

The materials in this section are made for teachers, but students should feel free to browse them as well.

In this article from NCTM journal Mathematics Teacher we review the evidence that the Mangbetu developed a Euclidean-like rule set for the use of 45 degree angles in their designs, and show how to use this in the context of trigonometry proofs and geometry challenges suitable for high school.

Geometry in Mangbetu Design.pdf