[Michael Murphy]

Here's how we did it when I worked with the administrative team:
Each student was given an hour sheet, which they were responsable for keeping updated. Whenever they went to a group meeting, students wrote down the hours they worked. They then turn the sheets in at the due dates, and receive credit for the hours they had signed off. This all gets rolled into an elaborate point system that decides who gets to travel...we pick the top 40, which is okay since that's usually about how many people are on our team.