Count By Calisthentics
Students stand up and one student is chosen to come to the front and lead an exercise which the students do while counting by 2's, or 3's, or anything up to the 9's.
If the student leader chooses jumping jacks, the students all do jumping jacks while saying, " 2, 4, 6, 8, 10, 12, 14, 16, 18, 20". Then another student is chosen to lead. That student may do push-ups while counting by 2's. Each count by goes up to the multiple of 10.