Tetrahedron Layout and Assembly
Masking tape holding two edges together.
Overlapping masking tape will be used to hold  edge when the three triangles are folded inward.
Prepare a comfortable space to work and ask for help from a partner before beginning the different steps that are required to assemble your project. You will find the work much easier.

Good luck, Mr. Savage
This line is predrawn 1cm from an edge on your triangles. This allows the masking tape to be alligned properly.