In "Identity Crisis," Charlie learns about a scheme to defraud people by removing money from their bank accounts. The perpetrator removes the money and later replaces it with money taken from twice as many accounts and then keeping the extra money. This technique eventually catches up with the perpetrator. This is an example of a geometric sequence with a ratio of 2.
Students will use ratios to grasp the concept of geometric sequences.
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.