In "Backscatter," Charlie uses the mathematics of "Backscatter Analysis" to trace an Internet attack back to its source. While few home computer users are likely to become victims of an outright attack by Internet hackers, nearly everyone with an e-mail address is familiar with the problems that can be caused by "message flooding," the mathematically inevitable consequence of designing messages so that they will replicate themselves exponentially.
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.