The most important knowledge teachers need to do good work is a knowledge of how students are experiencing learning and perceiving their teacher's actions.
The best learners... often make the worst teachers. They are, in a very real sense, perceptually challenged. They cannot imagine what it must be like to struggle to learn something that comes so naturally to them.
We teach what we like to learn and the reason many people go into teaching is vicariously to reexperience the primary joy experienced the first time they learned something they loved.
Sometimes the last thing learners need is for their preferred learning style to be affirmed. Agreeing to let people learn only in a way that feels comfortable and familiar can restrict seriously their chance for development.