The castle (a gymnastics mat or bench) is defended by a goal keeper and his knights (the white team).
The blue attackers try to bomb the castle by throwing the ball at the bench / mat.
The goal keeper and the knights must constantly be moving to shield the castle and prevent a direct hit from the attackers.
"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.