Teams of 4 one ball the team that throws the ball over the net has to rotate as soon as the ball has gone over. The other team has to catch the ball and throw it back over and rotate in turn.
Point scored when the ball is dropped.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.
As we enter the business end of the competition, we take a look at the remaining eight teams and the key talking points surrounding each side.