Layups should be taught with technique in mind at all times. Sloppy layup footing can stay with a player for a long time so work on getting the technique perfect and then add in a focus on making the actual shot.
If a player has pre-existing bad layup habits when it comes to footwork or focus, have them take things step by step from the beginning. Help them learn it as though they were learning a completely new move and have them practice the move outside of normal training hours. It’s something that needs and deserves the extra time.
Begin with “Knee Drives” to help the players get used to feeling the leg movement required to get good height. Leave out the ball for right now and have the player focus on body movement. The player should start with their right leg behind them and their left leg slightly forward in a bit of a lunge position. Don’t have the left leg too far forward, just a comfortable distance.
Next the player will drive their right leg forward and up in one smooth motion allowing as much energy as possible to be driven with it. Their right leg should come as high up as possible towards the players chin. It’s natural for the player to bring their arms up at the same time as their leg and should be encouraged.
This action should give them a feeling of almost lifting off the ground and should be repeated until the player feels comfortable doing it without consciously thinking about it while still maintaining good technique.
Next add the ball into the mix and have the player release the ball at the peak of their jump. Practice different scenarios where the ball is released with the right hand and then where the ball is released with a left handed shot.
Take the ball away again and add a stepping motion into the mix. Most if not all layups are going to include two steps before jumping into the air with the ball. Have the player start by stepping forward with the right foot and then jumping off with the left. The right knee should then drive upward into the layup lifting the player off the ground.
Repeat this increasing the speed when possible and adding the ball release once the player has become proficient. Include a dribble or two just prior to the move.
Finally practice the layup technique in different scenarios that mimic actual game play. Not every layup is going to come at the perfect angle to the backboard in a game so don’t waste too much time practicing the perfect scenario. Practice realistic scenarios.