The off spin moves the ball from a right handed batsmans off stump towards their leg stump. The spin is generated from the index finger, this causes the ball to alter its direction and bounce through.
The ball is held by the joints of the index and middle fingers which are spread along the seam. The spin is then generated by turning the wrist in a anti-clokwise direction.
"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.