Group presentations: At the end of each module, each student group independently presented their findings to the class. The presentation materials were prepared in a separate session by all group members. For each module, student groups collaboratively prepared a presentation in a separate session. Presentations included a module introduction, learning objectives, results, and suggested modifications to improve the module. Presentations were jointly presented by all group members for 10 minutes followed by 5 minutes of questions and discussion from the rest of the cohort and instructors.