The chancellor of the District of Columbia's Public Schools announced she was stepping down Wednesday, after three and a half years as head of the troubled school system.
"The best way to keep the reforms going is for this reformer to step aside," Michelle Rhee said in announcing her resignation.
Her time in office included successes in the form of higher test scores for D.C. students and a win in the second round of Race to the Top, a federal education program that provides funds to states that have innovative plans in education.
However, Rhee also frustrated the school system's teachers with layoffs for those who didn't meet new evaluation criteria. Both local and national teacher unions fought her changes.
The school system in the nation's capital is one focus of the documentary "Waiting for Superman," which features Rhee as a key voice in advocating for school reform.