Although I can see David's point that it might be interesting to see what would happen, I would form new teams. One advantage I see to TBL is that students are able to practice the dynamics of teambuilding and learn to work with new people. In the real world teams may last longer than 15 weeks but they are often fluid with new members joining, and others leaving. Plus the average worker changes employers frequently. I like to think I'm helping the students practice the interpersonal skills they need to succeed in the future. A change of teammates at the start of the next semester would allow them to do that. Dianne York, M.S., MT(ASCP) Lecturer, Biology Lincoln University, PA [log in to unmask]