Set players up as shown in video clip.
Offensive player will post up on the side of the court the ball is on.
The defensive player will try and stop the pass being made into the post, by half fronting, full fronting etc.
When the ball is passed across the court the players will continue the same thing on the other side.
When the ball is passed into the post, the players will play 1v1.
Start out slow and make sure the technique is right and then gradually increase the speed.
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.
The ball screen produces almost half of all professional offensive possessions, yet most teams still teach it as a memorised play. The modern approach trains the read - giving players a framework to decide based on what the defence does, not what the coach called.