The undergraduate lecture at an American university is characterized by a wide range of styles and presentation methods. This video shows four lecture prototypes of this range of styles. The dynamics of classroom management and material presentation are quite different. The four styles are 1) The Formalist, 2) The Buddy, 3) The Disciplinarian, and 4) The Interacter. This video, c. 1987, was produced for the Center for English as a Second Language, The University of Arizona, Tucson, AZ. The Instructor was played by Charles Sabatelle and the narrator was Gary Johnston.