In "Soft Target," Charlie uses Percolation Theory to speculate how a criminal got past the security checkpoints by examining how a subject navigates through a grid. This exercise attempts to show that patterns of random movement might occur with minimal assumptions about a subject's ability to navigate through the grid.
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.