The material below comes from the University of Michigan's calculus sequence webpages. Specifically it is from the larger page:
"http://www.math.lsa.umich.edu/courses/sg/" (accessed August 28, 2016)
I gratefully acknowledge Michigan Math for training me to teach calculus in this manner.
Team Homework Roles
During this course you will have to do a significant amount of group work. It is a growing trend in professional schools and business to have teams work on various projects. For the team homework in this course, each member of the team has an important role. These roles are to be rotated each week so that everyone has the opportunity to try each role. The roles are the scribe, the clarifier, the reporter, and the manager.
Scribe: The scribe is responsible for writing up the single final version of the homework to be handed in. This is the only set of solutions which will be accepted or graded. Each member of the group will receive the same grade as long as they work with the team. Students who do NOT participate will receive a zero. Whenever possible, your solutions should include symbolic, graphical and verbal explanations or interpretations. Diagrams and pictures should also be provided if possible.
Clarifier: During the team meeting the clarifier assists the group by paraphrasing the ideas presented by other group members, e.g. "Let me make sure I understand, the graph goes up ...". The clarifier is responsible for making sure that everyone in the group understands the solutions to the problems and is prepared to present the problems to the class if the team is called on.
Reporter: The reporter writes a record of how the homework sessions went, how long the team met, what difficulties or successes the team may have had (with math or otherwise). If there is disagreement about the solution of a problem, the reporter should present sketches of alternate solutions and explain the difference of opinion. The report should list the members of the team who attended the session and their roles. The report should be on a separate sheet of paper and the first page of the team's homework solutions. You may use a copy of the sample cover sheet for this purpose, if you like.
Manager: The manager is responsible for arranging and running the meetings. If the team has only three members, or if one of the four members cannot attend, the manager should also take one of the other roles. When the homework is returned, the manager sees that it is photocopied and distributed so that each team member's portfolio contains a copy of the corrected problems.
We recommend that all students go through the team homework tutorial at http://instruct.math.lsa.umich.edu/support/teamhomework/. This page is also linked from the course web page for your convenience.
The goal of team homework is to ensure that everyone learns with and from the other members of the group. This means that when the work is completed and submitted, every member of the group should be able to explain how to solve all the problems. Here are some ideas that past students have come up with to help your group function at its full potential.
Schedule enough meetings, and don't schedule them at the last minute.
Go to every meeting and be on time. (Woody Allen says, 80% of life is just showing up.)
Do the reading and work on each of the problems before the group meets.
Find a way to express varying opinions in a friendly way.
Listen carefully. Don't interrupt and don't tune out.
Make sure that everyone is equally involved.
Avoid making others feel dumb.
Stay on the topic.
Don't rush to finish before everyone understands.