“…Thus the supervisor in traditional teaching practice wishing to offer a student useful guidance, has intuitively to allow for the fact that the lesson he has observed is just one of a very large universe of lessons and in addition, to attempt to match his perceptions of what went on to those of the student. Little surprise, then, that there is some evidence that supervisors have minimal impact on practising students (Morris, 1974)-The larger question as to whether teaching practice as currently conducted makes any difference at all is very little investigated. Investigations by Brown (1975) and Copeland & Doyle (1973) suggest that it might, but evidence on the subject is extremely scanty.…”