Gymnastics Instructor. Job Description. Summary. The Gymnastics Instructor is responsible for teaching recreational gymnastics classes to participants ages 5–10, with safety and proper technique as the primary focus. Instructors typically work 4–6 hours per week. Qualifications. Must be at least 16 years old with a minimum of two (2) years of gymnastics experience. Must be able to work independently and use good judgment, with excellent communica...