This is 36 task cards that cover a variety of comma rules; introductory elements, items in a series, direct address.... (not combining sentences though!)
Students can write directly on the cards. The cards can be laminated and students can use dry erase markers. The cards can be projected and this could become a whole group activity. There are many ways this could be presented!
I am using these as a warm up/review. We will do a few cards each day leading up to our state test. These could also make a great test or center activity.