Edward Thring, Headmaster of Uppingham School.
There are probably few, except the reformers who insist on curriculum mapping and common formative assessment, who would disagree.
The teacher makes the taught do the work and occupies himself in showing them how to do it and taking care that they do it. His work is to direct, suggest, question, enspirit; he adapts himself in every possible way to the individual minds, never resting until he had made them master of the skill required and seen them become capable of working on their own account. Teaching takes any shape whatsoever, is fragmentary changing as the difficulties of the pupils minds change and disregards all precise plan, provided that a close, laborious and exact exercise of mind is the result. The teacher makes the pupils work and stands and falls by what they do.
Thring, circa 1821-1887.