Leap up and and place one foot on each bench. Jump off, land between the benches and repeat. When your muscles are strong enough, execute a depth jump with one leg. Step down and immediately upon landing jump up and over 3 medicine balls laid out in a row. Use the same leg or alternate.
Depth jumps with a jump up to another box.
Jump off to the floor, then up to other boxes of the same height. When familiar with these jumps, try alternating the height of the boxes. Do several side jumps over a bench, followed by several forward jumps over benches. Same as above. Add jumps onto higher objects for a total of 10 - 15 jumps.