The body schema is the representation that the child has of his or her body, allowing him or her to have a more refined mastery of his or her gestures, a perception of his or her body and, more generally, an awareness of self. It is first constructed from sensations and actions ("body felt, body acted"), before being represented and spoken of ("body represented", drawing of the man).
The more the child acts, the more he refines his body schema and the better he acts in return.