This presentation examines the roles of student teachers, cooperating teachers, and university supervisors in the student teaching experience. It discusses the Situated Learning Model of Supervision, where learning emerges from activities and dilemmas rather than being organized by instructors. The model emphasizes that learning content is inherent in doing tasks, and that subject matter emerges from environmental cues and dialogue. The presentation also distinguishes between reflection-in-action, which involves thinking about an experience as it occurs, and reflection-on-action, which involves reviewing a past experience with new perspectives.