Commentary: Money matters in education, as long as you spend it at the right time and on the right students

Half a century ago, when sociologist James Coleman was tasked by the U.S. Department of Education with studying educational inequality, a good school was regarded as one that featured teachers with advanced degrees, a well-stocked library, state-of-the-art science labs and the like. The assumption was that these "inputs" were key to students' success. But the bottom line of the 737-page "Equal Educational Opportunity Survey," known as the Coleman Report, was dynamite. Families mattered most, schools mattered