A practical reference guide for educators who teach large classes is presented, based on a workshop on improving teaching and learning in large classes. The workshop involved weekly meetings for a year at Colorado State University. The following problems of teaching and learning in large classes were identified: social and physical control, class discussion and questions, the personalization of instruction including use of the small group technique, building and maintaining rapport with students and other affective factors, the content and delivery of lectures, providing lecture outlines and ways to encourage notetaking, the delivery and content of the lecture, and the use of media. Workshop participants' teaching assumptions about each of these issues are also listed. Social control is considered to be the management of student behaviors, which is a factor of importance in the large class. Student behavioral concerns include: getting and maintaining students' attention, students' reading school newspapers in class, chattering, seating patterns, and cheating. To promote classroom discussion, it is suggested that an atmosphere encouraging student comments be created, physical obstacles be overcome, and all students be involved. Since a sense of rapport improves learning, nine ways to create rapport are suggested (use humor, student conferences, etc.) (SW)