The Pacific Ridge High School team in Carlsbad, Calif., does a drill a couple of times a week called "30s." As head coach Aly Dahl explains in the video, the objective of this drill is for players to fine-tune their passing off free balls, down balls and serves.
Three players line up in a serve-receive formation and a coach delivers balls from the other side of the net. One point is earned for each perfect pass. The drill ends when the team gets to 30. To incentivize players to stay focused and deliver as many "3" passes as possible, Dahl has instituted what she calls "the burpee rule." It goes like this: If you pass less than a "3," you gotta do 5 burpees.
Pacific Ridge takes video during the drill and plays it back on a big screen just seconds after the play is over. This allows players to watch what they've just done and get immediate feedback from Dahl and other coaches. In less than a minute, the players are passing another ball – with new information in their heads about what they need to improve on.