Back Flip On A Trampoline

Once we began our GCSEs at school we were allowed greater options in PE, such as bowling, rollerskating, volleyball etc. I took a course in trampolining and by the end was able to do the following moves:

Basic Bounce - Where you face either one of the short ends, square on, jump straight up and down with the legs straight and together, toes pointed, swinging your arms in a backwards circle.
Tuck Jump - A position where the knees are bent and drawn into the chest, with the upper body folded at the waist at angle of greater than 45 degrees from the upper legs.
Pike Jump - A position where the body is bent forward at the hips to 90 degrees or more while the legs are kept straight, with the thighs close to the upper body.
Straddle Jump - A position where the legs are split at least shoulder width apart and the legs are kept straight whilst the upper body is aligned forward at the hips at an angle greater than 45 degrees.
Half Twist Jump - A move whereby a trampolinist rotates 180 degrees around the body's longitudinal axis, finishes facing the opposite end of the trampoline.
Full Twist Jump - A move whereby a trampolinist rotates 360 degrees around the body's longitudinal axis, finishes facing the same end of the trampoline.
Seat Drop - Landing in a sitting down position with the legs pointing straight ahead, and hands beside the hips supporting the back.
Swivel Hips - A move starting on the seat, a half twist in upright position, landing again on seat.
Front Drop - Landing on the stomach, or front, with legs straight and together and hands under chin.
Back Drop - Landing on the back with legs together and arms & legs pointing upward.
Somersault - An acrobatic movement where the body makes a complete revolution, heels over head; also known as a "summy" or a "sault".
Front Somersault - A forward initiated Somersault.
Back Somersault - A backward initiated Somersault.