They may be in a peewee class, but don't call any of these high-kicking, punch-throwing youngsters "peewee" to their face. These kids are getting a taste of the martial arts at a Kempo Karate class at Leo Creer's studio in Los Angeles. Creer offers a number of martial arts classes for beginners, some as young as 3 years old. According to black-belt Creer, who is also an actor-stuntman, his classes teach youngsters self-confidence, discipline and self-control. Creer's studio is at 8227 S. Western Ave., Los Angeles.