Here are 3 sample pages from our Geometry Workbooks, plus photos of polyhedra built with Jenetic Jigsaw Triangles.
Note: These kits are not for sale, they are only available for loan to teachers. We loan custom kits (including workbooks and triangular panels) for teachers to use and evaluate. See the Order Page for details on participating in this evaluation program.
- Some basic polyhedra and their various properties.
- Review two and three dimensional calculations: squaring, trianguling, cubing,and tetrahedroning.
- Cube, octa, and tetra volume relations.
- Subdividing the octa.
- Building a two-frequency octa.
- Building cubes and more from tetra.
- The rhombic dodeca and more.
- Subdividing the equilateral tetra.
- Space-filling systems and their transformations.
- Charting discovered information:volume, surface, angles, ratios.
- Relation of polyhedra volumes surface area.
- Tetra and cube inscribed in sphere.
- Patterns of growth.
1, 2, and 3 frequencies
2 tetra and 1 central
octa forms 6 diamond faces
2-frequency truncated tetra
Cubocta
Oct-tet truss with edge to edge axes of rotation
Four basic triangles
4 open-faced cube octahedrons around 2 half octas
Stellated octa
5 open-faced octas around a central point under slight stress
Packing study
10 triangles form 5 saddles
2-frequency octa
Icosahedron
2 twinned cubes
2 frequency cube inscribes a stellated octahedron
