Setup the practice as shown.
Player 3 runs into the arc and runs off the screen created by player 2 before receiving the ball from player 1, turning and then shooting.
Player 3 then collects the ball and returns the ball back to player 1.
Make sure players take 1 or 2 steps away from the screen first, before cutting off the screen. This is called "setting up the defender".
Players should be rubbing shoulders when they come off a screen, so there is no room for the defender to get through.
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.