For 7th and 8th graders. I use the idea of each school day as a loop. They have to come to school, then go through their classes in the same order each day. Inside of each class, they may have a loop of activities they do each day, such as open their binder, get a sheet of paper, write their name and date on the paper. Then I'll have pairs come up with one loop they do for a class. They will have 20 secs. to share, the catch is, if the loop they want to use is already said, they have to have a different one ready to go. Obviously, the last group really has to be thinking quickly.