N.M.
The Little Gym in South Tampa had a great class called Chop Sticks. It's not huge on lots of karate/martial arts moves. But they do learn blocks and kicks, but no sparring w/ other kids. They do this for about 20-25 minutes and then for the next 1/2 hour or so they do gymnastics rotations, that involve some aspect of what they just learned (blocks, kicks etc.) It was very fun and my kids had a ball in it-and were very tired by the end of class!