2 groups and the players all have 1 ball. Trainer stands in a corner of the field and gets the ball from the player behind him. Trainer bounces ball into the field and player goes to catch the ball. Player runs out of the field and joins the back of the line. In this way, you think about safety and you can continue at a high pace. This exercise can also be adjusted to the player who has an easier or harder time catching the ball.
The same, but now try to test and catch the ball yourself. So after the bounce, test.
Team formation and emphasize turning after each ball Look at the opponent and know where you are going so you can dream! Serve, catch and throw over the net. Also have them throw into the holes and not into the opponent's hands. So watch and move!!!