Khan has proven that 100+ years of educational theory is wrong. With no training whatsoever in a formal program of education, he became, almost overnight, the most important teacher in the history of the world. The teachers’ union can scream bloody murder, but it won’t do any good. His program is clearly better than anything that the typical tax-funded public school has to offer.
I don’t know what Khan’s politics are, and I don’t care. I don’t care what his educational theory is, either. I care about this: he was never formally certified as a teacher. This represents a threat to the public school system like no other in history.