Car Racing Game
In this game, two players race along a road. Select how much to move on your turn, horizontaly and vertically, from the dropdown menus. Do not collide with the other player and do not go off the gray road. The concepts of speed, velocity, acceleration, and trajectory are implicit in the game.
 M. Gardner, Knotted Doughnuts and Other Mathematical Entertainments, New York: W.H. Freeman & Company, 1986.