In "Under Pressure", Charlie is searching for the leader of a terrorist cell composed of independent small groups of people who do not communicate with each other. Everyone involved is intentionally given a very limited perspective. He concludes that the leader they are trying to find has the "widest view of the network". In this activity, the idea of finding someone with a "wide view of the network is explored by finding a point on a lattice such that several other sets of points are visible
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.