[Trying to Help]

We have a peer review process before any competition where the students and mentors evaluate each member. Our club secretary has records of attendance for all build meetings and details about fund raising efforts. We group people into three designations: active, inactive and disruptive. Each group has a series of opportunities available to them.

Perhaps if your less productive students knew that they were going to be publicly evaluated, they'd be somewhat more active?

If that doesn't work, you could always try the task approach. "Here are a list of tasks that need to be done. Anyone who doesn't have something to do will be assigned one of these." Usually those are the less attractive chores like using the shop vac to clean up metal shavings.

Trying to Help