Rebound Drill
Playing inside means you're close to the basket, and it means you'll be expected to rebound the basketball. Start off on one side of the basket, about halfway to the free throw line. Toss the ball off the backboard and explode up the the ball, snatching it out of the air. Come down strong, on-balance, and turn to make an imaginary outlet pass to your point guard.

Do this drill 10 times from each side of the basket. This drills works on your jumping ability, stamina, and gets you in the habit of coming down on-balance while quickly looking to make the outlet pass to start the fast break.

Offensive Rebound and Put-Backs
As an offensive rebounder, a key focus area is going up strong for the follow up shot once you've grabbed the rebound.

Start 4 or 5 feet out from the basket on the right side. Toss the ball against the backboard and go up strong for the rebound. Keeping the ball at chest level or above, go back up strong for the shot, banking in the put-back shot. Do this 10 times from each side of the basket.

Next, do the same drill, but after grabbing the rebound, give a quick pump fake before going back up with the shot. Inside players are often anxious to block shots, so giving the quick pump fake will often get a defender off his feet or out of position so you can quickly go back up with the put-back. Do the pump fake and put back shot 10 times from each side of the basket.

Rebound Tip-Ins
As you progress through your career and get taller and stronger, the tip-in shot will likely become a bigger part of your game.

There will be times when it is better to tip the ball back into the basket than it is to actually come down with the rebound and attempt a follow-up shot. Tip in shots take lots of practice, and a fair amount of physical skill. Practice this shot, but only attempt tip-in shots during games when you are actually pretty good at doing them in practice situations.

Start 4 or 5 feet out from the basket to one side and toss the ball up against the backboard so it will bounce off the rim. As the ball is bouncing off the rim, jump up and try to tip the ball in with your right hand (from the right side). Do this 5 times. Then, switch to the left hand side of the rim. Toss the ball up so that it bounces off the rim, jump up and try to tip the ball in with your left hand.

You may want to start off by trying to put the ball back into the rim with 2 hands at the same time. As you get better, you can actually try one-handed tip-ins. The key is to time your jump properly, and use your fingertips to guide the ball back into the rim. It takes lots of practice. But in time, you should be able to utilize the tip in on occasion. Remember though: rebounding the ball, coming down with the ball, then going back up with a strong power move is often a better shot than a tip-in (which can often be a lower percentage shot).

Backboard Toss
This drill helps you work on your jumping ability, timing, and balance as you come down with the boards.

Start on one side of the basket, 2 or 3 feet out from the backboard. Toss the ball up high against the backboard as if you were passing it to someone who is standing on the opposite block. After you make the pass, take a step or two (as necessary) towards the opposite block, then explode up to grab the ball out of the air, as if you're grabbing a rebound. Really explode up into the air and snatch the ball from the sky. As you come down with the ball, be sure to come down on-balance, and ready to go back up with the shot, keeping the ball in close to your chest with both hands.

Now, throw the ball back against the backboard, over towards the opposite block and repeat the drill. But don't always throw the ball to the exact same spot. The goal is to vary the direction and distance you throw the ball slighly so that each time you explode up for the rebound, you come down in a slightly different spot. This forces you to stay on balance, and jump different distance and to different spots. In this way, you more realistically simulate rebounding in a a game situation where you're never quite sure exatly where the ball will come off of the rim, or where exactly you're going to have to jump to grab the ball. Make 10 tosses against the backboard (grabbing 10 simulated rebounds). Rest, and do another set of 10.