Teacher supervision involves the regular and systematic appraisal of teachers by the principal or a member of his administrative staff. Therefore, the principal's office must assume the responsibility of supervising the teaching staff, a part of which is verifying student performance. If the supervision program helps teachers become better teachers, they will welcome supervisors in their classrooms with professional exuberance and sincere appreciation. The supervisor's attitude and willingness to mentor teachers in the areas where professional insights and assistance enrich teacher and student effectiveness translate into greater job satisfaction and improved student performance. It is more than taking a routine peek through the glass window in the teacher's classroom door, or listening outside the door as the class reads or the teacher lectures.
Supervision has a predetermined purpose.
The ultimate benefactors of an effective supervision program are the students. The process in itself encompasses two dimensions, an evaluation dimension and a supervision dimension. The development of the teaching staff is subject to the principal's leadership skills in developing and implementing these program dimensions - evaluation and supervision. It takes time, hard work, and well-trained supervisors, but the results justify the time and effort. To ignore the value of a teacher supervision program opens the doors for mediocrity, an enemy of excellence that often goes undetected by those empowered to do something about it.