We present TeamVis, a set of tools for sensing and visualization of objective team performance in a simulated medical scenario. TeamVis helps teams, instructors, and researchers in observation, analysis, and evaluation of team behavior. The current system supports analysis of team movements and verbal communication. The system has potential to provide deeper insight into team performance, enabling design of more effective simulation training scenarios. Furthermore, the observed metrics can aid trainee debriefings by providing another mechanism for learning through self-reflection.