Education Technology

NUMB3RS - Season 1 - "Identity Crisis" - Growing Geometrically

Published on 10/17/2008

Activity Overview

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.