Build your own tetrahedron model!
Bonus: Build your own Tetrahedron!
How to:

Copy this picture and print it

Once you’ve printed a copy of the Flat Tetrahedron – Get your scissors…

Cut along the outside lines and discard scrap

Fold along all straight lines, then put glue or tape on the white tabs. Color side is down in this view

Tuck each tab under the edge of the triangle without a tab, then secure with tape

You now have a model of a tetrahedron.
Note: Three primary colors and white makes four sides.
Instinct – Red
Intellect – Blue
Intuition – Yellow
Intention – White