In basketball, "Controlling the Boards" means that one team is getting most of the rebounds in the game.
Rebounds happen when a player grabs the ball after a missed shot. There are two types: Offensive Rebounds and Defensive Rebounds.
The team that controls the boards usually gets more scoring chances.
This is because Offensive Rebounds let them shoot again, while Defensive Rebounds let them start a new play.
The team that ‘Controls the Boards’ often has an advantage and a better chance of winning. Players who are tall, strong, and good at jumping tend to be the best rebounders.