In "Calculated Risk," Charlie has a jar full of different colored gumballs. When Agent Colby Granger takes one of the gumballs, Charlie asks him what is the color. By knowing how many of each gumball the jar started with and by keeping track of the color of the gumballs as they are removed, Charlie can determine the chances of choosing specific colors of gumballs in the future.
Before the Activity
Download the attached PDF and look over the Teacher page.
During the Activity
Discuss the materials from the Student Page with your class.
After the Activity
Encourage students to explore web sites and questions from the Extensions page.