Demonstration Team Practice. During this 35 min class, the Kids Demo Team and the Adult Demo Team will practice simultaneously, sharpening their skills as individual martial artists and coordinating as a team. This class is for students who have been selected for the demo team based on their commitment, skill level, attitude and presence. Try-outs for eligibility will be held periodically. The frequency of Demo Team practice varies throughout the year depending on the number of demonstrations scheduled during any given period.