Stanton Wortham is Professor and Associate Dean for Academic Affairs at the University of Pennsylvania Graduate School of Education. He also has appointments in Anthropology, Communications and Folklore. His research applies techniques from linguistic anthropology to study interactional positioning and social identity development in classrooms. He is particularly interested in interrelations between the official curriculum and covert interactional patterns in classroom discourse, and in how the processes of learning and identity development interconnect. Dr. Wortham has written widely on class...