How education schools can turn out better teachers

College students who aspire to be teachers often graduate from teacher prep programs unprepared to run a classroom effectively. That takes a toll on their health and happiness and on their students' academic performance. Three years ago, the National Council on Teacher Quality red-penciled scores of education schools in Illinois that churned out unprepared teachers. Researchers slapped the state because its test for college students who want to be teachers was too easy to pass, allowing a...