Washington schools Chancellor Michelle Rhee announces her resignation Wednesday.

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.

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