I created this rubric and have used it many times. It motivates students to contribute to group projects, makes them accountable, and provides them with an opportunity for reflection.
Roles for team members during group work
The Brown-Bag Teacher: Kagan Cooperative Learning - Working with a Partner poster freebie
Fourth and Ten: Guest Post: Sandy from Soaring Through Second Group work freebie handout
Teaching Back to School Procedures
Bookmarks: language for classroom collaboration. Use these to help your students communicate with groups, patterns, or whole class discussion. 21st century skills.
Anchor charts for classroom management-group work
Setting and enforcing strong expectations for group work from the beginning of the year can make all the difference in the world.
Rockstar Group Work! Great social skills T-chart for cooperative learning!
Bravo Board- week winner is the "Bravo Table" that gets a small trophy on their desk for the whole next week. I like the emphasis on group cooperation/teamwork.