Tumbling-n-Trampoline Intermediate is a 50-minute class in our Big Gym for 7 to 14-year-olds. Oklahoma Gold has the best facilities for teaching and mastering power tumbling in the state. We have five in-ground trampolines, a 70-foot in-ground Tumbltrak and a 100-foot in-ground rod floor. In-ground equipment is safer, helps tumblers with their confidence and leads to faster-paced skill development. Pre-requisite for the intermediate level is a running round-off. Our instructors will teach the basic techniques necessary for learning the back handspring.