The object is to practice rebounding and boxing out.
3 people line up in the paint. The first one is #1, the second is #2 and the third is #3. Put one person on the top of the arch and one outside the 3-point line down in the corner and another in the same position on the other side if the 3-point line. Someone should call 1,2, or 3 and then pass to any of the lines. When they shoot, the number of the person they called should go box them out. If the shooting team rebounds it, they can keep playing.
7 and up
This basketball drill is licensed under a Creative Commons License. This drill is from Pål Degerstrøm at www.degerstrom.com/basketball.