One month gymnastics class for kids + membership fee at American Gymnastics Club. American Gymnastics Club is San Francisco's finest gymnastics club, offering a comprehensive blend of recreational and competitive instruction. Classes are available at all levels, from beginning to competitive. We maintain a student-teacher ratio of 8 to 1 or fewer to facilitate individualized training. Our expert staff has extensive experience in teaching, as well as competition, thus each instructor brings his or her own first-hand knowledge and background into each session.