We chose the words “large-group instruction” in lieu of “team teaching,” since the goals of this innovation are somewhat different from those commonly associated with team teaching. The most commonly offered goal of team teaching is that of providing students with a richer educational experience by combining the specialties of the teachers in a given school. While this idea could be incorporated into the structure of our large-group instruction in mathematics, this was not our primary concern. Flexible scheduling offers many possibilities for a variety of combinations of large-group leeture and small-group discussion labs. Our question with regard to this freedom was simply this: Can a teacher's load, in terms of classroom contact hours with students, be substantially reduced under large-group instruction while maintaining a high degree of learning within the group?