Here's what you'll need to make a geometry board:
- a piece of wood (find a piece of scrap in your garage or check the scrap bin at the lumber yard).
- some kind of saw. I used a table saw and sliding compound saw but a circular saw or hand saw will work fine.
- carpenter square
- drill for pre-drilling holes for the nails.
- sand paper.
- wax for finishing.
My daughter set the size for this board which is 7" x 7" x 3/4" with 36 nails spaced one inch apart. Start by measuring with a tape measure and making a pencil mark at 7" from the edge. If you have a table saw, rip the board lengthwise.