I think I may have rubricked myself into a corner...
I assigned a group project. Some groups have 3 members, some groups have 4 members. All components of the project are required for groups with 4 members, but certain parts are optional for the 3-member groups (essentially turning the optional stuff into extension activities).
Is there a way to excuse parts of a rubric for groups that don't do the optional parts so they're not penalized? Should I just give them full credit for those parts? Do I create separate assignments for 3- and 4-person groups?
Also, the groups with 4 students instead of 3... The 4th person is pretty much dead weight. I was trying to spread the load so that it didn't fall on just 1 or 2 students to make up for their missing group members
