After your normal warm up/stretch routine grab a ball and begin your basketball shooting drills; shoot ONLY lay ups.  That's right, your basketball shooting drills are lay ups.  BUT - SHOOT THESE LAY UPS ONLY ON THE OPPOSITE SIDE OF THE BASKET FROM YOUR SHOOTING HAND, YOUR DOMINANT HAND (right handers shoot the basketball only from the left side, left handers shoot the basketball only from the right side).  Shoot these lay ups with your dominant hand.  Shoot these lay ups flat footed.  Shoot them with a little hop in your delivery.  Shoot these lay ups jumping.  Shoot a minimum of 50 and really, you should shoot at least 150.  If you want to learn how to shoot a basketball then use these basketball shooting drills to lock in your basketball shot! 

Why the opposite side?  Shooting a lay up on the opposite side naturally forces your elbow in front of you, and in turn forces you to be aware of your elbow positioning.  Shooting a lay up on the opposite side forces your hand to the best natural position behind and beneath the ball.  To practice your free throw shooting mechanics, shoot the opposite side lay up as a set shot, imitating your free throw shooting stance.  To practice your jump shot shooting mechanics shoot the opposits side lay up while jumping, imitating your jump shot motion.  The opposite side lay up sets up a self policing naturally individualized mechanical shot.  USE THE EXACT SAME SHOOTING MECHANICS FOR YOUR JUMP SHOT and USE THE EXACT SAME SHOOTING MECHANICS TO SHOOT YOUR FREE THROW.  Now that you're physically and mentally warmed up, and your shooting form is locked in, because of these basketball shooting drills, move out 1 step and put up a few shots as you move around the basket.  Then move out another step and throw up a few as you move around the basket.  As you continue moving out from the basket, 1 step at a time, you will eventually reach a point on the court where your shooting percentage drops below 70%.  When that happens, return to your "opposite side lay up," put up a few until you're feeling natural again, then quickly work your way back out.  Return to the "opposite side lay up" to reestablish your basketball shot, your shooting form, your shooting technique, before moving out again.  This is the ONLY way you should warm up for shooting a basketball.  If you come out after your normal warm up/stretching routine and begin shooing a basketball from behind the three point line, or shooting from the free throw line, or any silly shots, you do yourself a terrible injustice. 

For obvious reasons my favorite basketball shot is the lay up, and after practicing these basketball shooting tips the lay up should be your favorite basketball shot too.  Not only is the lay up the most accurate shot on the basketball court, it is the most repeatable.  It is the EXACT SAME SHOOTING FORM YOU USE FOR YOUR JUMP SHOT, and the EXACT SAME SHOOTING FORM YOU'LL USE TO SHOOT A FREE THROW.  So as you're practicing that measly little "opposite side lay up" you are actually reinforcing muscle memory for your entire basketball shooting arsenal.  Muscle memory is reinforced by success and by standing under the basket and shooting hundreds of "opposite side lay ups" in a row, with somewhere near 100% shooting accuracy, you are radically reinforcing muscle memory.  Repeatability is the reason basketball shooting mechanics, shooting technique, or shooting form is so important.  We all hear basketball shooting coaches harping on elbow positioning.  Well, if your elbow is not in front of you when you're shooting, that means your elbow is somewhere off to the side.  When your elbow is in front of you and your elbow and upper arm are in a locked position, that motion is repeatable, and since it is repeatable it can, and will eventually become muscle memory.  If your elbow is "somewhere" out to the side, that exact motion is not repeatable.  "Opposite side lay ups" naturally enforce and then reinforce your elbow positioning, and your hands' natural positioning.