Make sure that feet are in front of the defenders feet, back is bent, knees are bent, and as wide as possible.Keep good balance.
Keep arms wide and target hand up.
Post up on the block and using a toss back or spin back, catch the spin back and meet the quick pass.
Always chin the ball when close to the basket and keep it there at all times unless going to shoot or dribble.
If pressured by a double team then pivot away from the pressure but keep the ball chinned.
Make sure you now how to post up. Look at how you are doing it in a mirror or a window and make sure you are doing it properly.
Keep the ball pressed right under your chin with your elbows out wide but do not swing them back and forth just protect the ball.
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.