This is a NEW and IMPROVED version!
The Cooperative Group Roles PDF is a product that allows you to easily structure group work. The five jobs are: materials manager, time keeper, speaker, and group leader. Cooperative Groups can be used flexibly in any grade level.
I have printed both pages on card stock and placed in a large zip-lock back for students to use. The small cards can be cut out and used as a job card on each students desk so the teacher can easily see who should be carrying out each role. I also like to place a timer in the large zip-lock bag.
Students seem to love having a job and I find group work is much more productive when I assign different roles.