Players will jump as high as they can off the one leg, once they land they will switch over to the other leg and again jump as high as they can.
This is the same technique as skipping except that each jump you are going as high as possible.
This drill should be done over the length of a basketball court and should be repeated 3 times.
Good team defence is five players guarding the ball, not five separate one-on-ones. The shell drill is where that starts, so here is how to teach help-side positioning and rotations from the first week of the season.
Rebounding is the least glamorous thing in basketball and one of the most decisive. It is also almost entirely a habit, which means it is entirely coachable.
Good spacing is only the start. The best modern offences teach players to attack the defence's rotations and play in a permanent 4-on-3 - here is how to coach that read.