Team-based learning is a pedagogical approach that uses permanent student teams to motivate and help students learn in both small and large (~200 students) classes. Learning is structured around three components: Individual pre-class preparation; Individual and team Readiness Assessment quizzes; and Team application activities. Direct instruction (i.e. lecturing) is used to address misconceptions and introduce more advanced ideas prior to team application. In 2016-17, team-based learning was implemented in a modified form in Integrated Science, a new Faculty of Science first-year program that connects concepts in biology, chemistry, physics, and mathematics. In this session, we will describe the basics of team-based learning, the modifications we made for an integrated context, and lessons learned based on student feedback.