Ron Charles' review of Teacher Man by Frank McCourt is notable for (1) it's negativity; and (2) the fact the Charles was once an English teacher himself. He writes:
As deeply as I abhor the test-driven atmosphere that’s turning schools into re-enactments of Hard Times, I couldn’t shake my skepticism of the antics McCourt celebrates. Charming students with your personal life is one way to lead them into the wisdom, beauty and inspiration of literature, but for the teacher this is such an intoxicating, addictive method that it’s hard to keep the real destination clearly in mind.
He ends the review with the following observation:
And at most, he’s described the teacher we all wish we’d had.
If I ever gave the impression that I regretted having Mr. McCourt as a teacher, that would be a completely false impression. He was the most entertaining and enlightening teacher ever, even though he didn't teach us any English.
But Charles' point, which I think I agree with, is that the English teacher's job is to teach English, it's not to entertain and enlighten.