My son doesn't use the glass when shooting layups? Is this something he should be doing?

 "Going Glass" as we like to call it, is essential when we talk about shooting from any distance in basketball at an angle.  What you have to teach your son is that the box on the backboard is there for a reason.  Basketball is a sport that geometry people love because it is always about angles, weather you are talking about passing, shooting or dribbling.  When shooting, on the side of the basket, I always have taught my players that if they aim for the corner of the box on that side of the backboard, the ball will usually go in.  So your job is to prove it!  Stand near the basket and show them and keep moving back and you will see that it is true!  The best angle for using the back board is usually 45 degrees, but around the hoop, you should always try to use the board.  You will see most good shooters all the way up to the pro level use the board as far out as 15 feet.  Tim Duncan of the Spurs throws it off the window with a great deal of confidence and he has done well for himself!