If something doesn’t work, you try to fix it. American education, however, can’t be fixed with a nail or glue. Academic leaders, researchers and politicians have introduced a multitude of reform efforts — block scheduling, vouchers, merit pay, performance funding and others — but America hasn’t been able to crawl out of its educational rut. […] New College of Florida in Sarasota is the state’s only public institution that does not award grades, only written assessments of a student’s progress.