Texas Instruments: Numb3 Rs: Spies Like Us

Based off of the hit television show NUMB3RS, this lesson focuses on a spy trying to penetrate a fort's entrance, which is subsequently being guarded by three sentries. One student controls the spy and has a choice of where to move; another students control the sentries and must move according to the toll of three dice. Over the course of a few trials, students begin to develop strategies for the spy, and eventually discover probabilities of escape based on various patterns. A graphing calculator with the Probability App may be substituted for the dice.