PBS
Pbs Teachers: Cliques Online: Stereotypes
Compare teenage "jocks" to "goths" by considering how group members struggle against being stereotyped even as they lose themselves in the group identity. Consider the need for clique members to maintain an individual feeling of identity.
Science Friday Initiative
Science Friday: Crowd Counting
There's a big event, with a large crowd. But just how big WAS the crowd - and how was it counted?