The Galton Board is a 12” by 9” (310mm by 218mm) probability demonstrator, with Pascal’s triangle and two Stock Market Clip-ons. It provides a visualization of math in motion and the powers of the probabilities and statistics. With the addition of the two Stock Market Clip-ons, the board illustrates the randomness and the probabilities of a 100% stock portfolio and a 50% stock/50% bond portfolio monthly returns.