Developing systems for managing cooperative groups needs to be simple and easy. This simple GROUPS cards are meant to used easily for classroom management. Each page should be printed on the color paper shown. Green and Yellow should be laminated back to back and always visible at the the table. Then red and purple should be printed back to back and kept with teacher. As you are teaching and a group is not meeting expectations you can just simply walk by and place the group from green to yellow. You can also redirect those to Red or recognize groups with Purple. Once I taught my students the silent movement of the card served an easy system to manage. I used them in science and math mostly, but they can be used for any class.
Once you teach your system, its easy and simple visual cue that you can follow up with the team when you are not providing direct instruction.