2 teams play via overhead throw technique ball over the net. Catch the ball also overhead and stay like this for 2 counts. The person who threw the ball, taps the middle line quickly and gets ready again.
Now one person throws the ball via an overhand motion and the other immediately returns it. The one who plays overhand back, taps the center line.
Player with bucket above his court stands on the middle position. Trainer throws the ball and the player catches the ball and throws the ball directly into the bucket. Trainer stands next to player with bucket. Make sure it's a flowing movement!