Players work in pairs and have a ball each. They overhand pass the ball high at the same time and then spike the ball off the floor to each other.
At the beginning it may be difficult even for elite players to spike accurately so they should be instructed to focus on technique rather than on power.
As players must fast switch from spiking to receiving, adjustment ability is built up as well as ball control through spiking.
"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.