Last week’s 3D printing math teaching aid was a volume comparison set that I designed to be able to fill with water, sand, or something similar and pour between containers to compare volume.

The diameter of the cylinder and sphere and base of the cone are the same, which is the same as the length of the cube. The cone and sphere have bases to hold them upright, and the sphere has a lip to pour through to avoid making a mess if pouring a liquid.

I’m a terrible teacher, so it’s fortunate that my wife is the one doing the teaching!

(Originally posted on Pluspora)