Fun way to engage all kids in a rhythm activity!
Follow the leaders rhythm
Have one child be the detective and send them out of a room. While the detective is out of the room assign a leader of the rhythm. The leaders job is to come up with a rhythm for all the other children to follow, have the leader try multiple actions. The detective comes back into the room and must guess who the rhythm leader is. Once the leader is guessed assign a new detective and a new leader.
Try incorporating dance moves, hopping, jumping, marching, etc.