When you get an offensive board you may not be able to just over power the defender and go up and finish over top of them. You may need to be crafty around the basket and use the rim to protect you from getting blocked. This basketball rebounding/finishing drill will help you to work on your rebounding, and then also using the shot fake and reverse finish to score at the basket. It is important that the player knows what to do with the basketball when the do get the offensive rebound, because they will most likely be in a good position to score the basketball.
Rebounding the basketball is a skill just like anything else in basketball. So if you want to be good at it, you have to spend the time doing basketball rebounding drills and training to be a rebounder.