My wife was watching a Clinton Anderson video on training horses. I was fascinated. The man was training a horse at the same time he was teaching us how to train a horse and the horse was not necessarily his best student!
Once he was showing how to indicate to the horse to go right or to go left by using a florid arm signal. He said, “Exaggerate to teach. Refine as you go along.” I think I often do this in class. Generally it has the form of generalization ( Yes I know what I just wrote.) stated emphatically. For instance I might say, “Always multiply the equation by the common denominator.” “Does it always work?,” a student may ask. “Yes,” I reply, “but there are sometimes faster methods that I will show you later.” Exaggerate then refine.