How did he do it? "He wouldn't budge on his expectations," said Thomas Valdez, who had Escalante for math class from 1989 through 1991. There were hard feelings and not all the students took it again, but those who did, all passed the second time around. That led to a much-publicized scandal where the College Board suspected cheating, invalidated the results, and made the students re-take the test. He did so well, that in 1982 every student in his class nailed AP Calculus, nearly half with a perfect score. Escalante took a class of predominantly Latino, inner-city students, whom others said couldn't learn, and taught them to master calculus.
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