Construct geometric and other figures and graphs related to arithmetic, algebra, geometry, trigonometry, and calculus. Insert push pins at coordinates, connect rubber bands to make straight lines, flat spring wires between pins make circles or arcs.

Consists of a cork board mounted with a rubber mat embossed with a 34 x 30 grid of 1/2 inch squares. Included are three flat spring wires, 14 push pins, and rubber bands.