1. Frank H. Blackington and Robert S. Patterson ,Schools, Society and the Professional Educator( New York : Holt, Rinehart and Winston , 1968 ), p. 21 .
2. By common man it is meant that teachers are required to exercise only that degree of care in the management and supervision of pupils that might reasonably be expected of any prudent person in the same or similar circumstances. Johnson devoies one paragraph to explaining incompetence, but a chapter to exploring tort liability. See George M. Johnson ,Education Law( East Lansing , Mich. : Michigan State University Press , 1969 ), p. 41 .
3. Criteria for the Professional Preparation of Teachers