Standing Arch Kit, composed of seven wooden (pine) blocks with tight tolerances that when properly assembled produce the shape of the catenary arch. Includes a hook for the attachment of hanger and masses to demonstrate a live load. Size: 16.5 in. Tall, 13 in. Wide
Catapult kit to explore force, acceleration, Hooke's law, parabolic trajectories by building and testing a fully-functional catapult. Contains catapult base, sides, lever arm, rubber bands, screws, dowels, hook, ping-pong ball. Aids in conceptualization of abstract mathematical ideas
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