grids, small bounces, trot poles up to the jumps
Like and watch John Marti Horsephysio on Facebook!! His pole exercises are amazing???
random jumps in the arena at random positions. (If can and have the people for it, have someone move jumps as your moving)
Putting jumps on a serpentine or on a figure eight can really help them learn to move off of your leg aids :)
Gymnastics can really help improve a green horses form ❤️
Takeoff and landing rails, small bounces(start really small), trotting skinny jumps
Bigger cross rails. Helps them get their knees tighter!