Liken this to the transfer of electric power over long distances. Invariably, there is loss of power in transmission.
Performing activities with external apparatus calls for a clear understanding of ‘body boundary’ i.e. a sense of where the body ends and where the apparatus begins. In order to be able to catch a ball, a sense of visual and spatial awareness along with a sense of body boundary needs to be active.
A lack of awareness in this area interferes with the student’s handwriting because they can’t settle on an effective grip. This also causes a difficulty where two-handed coordination is involved. Tasks like opening a jar of jam or cutting out a shape from a piece of cardboard, become very difficult
A child has to visually understand whether there is enough space for him to pass between the side table and sofa without bumping into either. If he learns to swim in the sea, he may not realise that he can now swim in the pool too.