Word: 10x
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Dates: during 1950-1959
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...more he observed the goings-on in the Illinois high-school math class, the more uncomfortable the young mathematician became. At one point the teacher took up a "story" problem which involved two equations with two unknowns (10x+50y =320 and x+2=y). One boy ingeniously found a way to solve the problem with only one unknown, x+5 (x+2) = 32. But the teacher did not congratulate him: she told him he was "wrong" and sent him back to his seat. To Mathematician David Page, 31, of the University of Illinois' College of Education, this...