For four years, with a very large school, I found this sufficient in every case of discipline which occurred, except in three or four instances, where something more was required.

To make it successful, however, the work must be done properly.

Several things are necessary.

It must be deliberate; generally better after a little delay.
It must be indulgent, so far as the view which the teacher takes of the guilt of the pupil is concerned; every palliating consideration must be felt.

It must be firm and decided in regard to the necessity of a change, and the determination of the teacher to effect it.