The Web site of Carnegie Learning, [1] a company started by scientists at Carnegie Mellon University that sells classroom software, trumpets this promise: “Revolutionary Math Curricula. Revolutionary Results,” reports the New York Times. The pitch has sounded seductive to thousands of schools across the country for more than a decade. But a review by the United States Department of Education [2] last year would suggest a much less alluring come-on: Undistinguished math curricula. Unproven results. The federal review of Carnegie Learning’s flagship software, Cognitive Tutor, said the program had “no discernible effects” on the standardized test scores of high school students…