A student holds a placard reading "Education Is Not a Business" as she takes part in a march to protest against the slowness in the progress of the Chilean education reform, in Santiago

Students march to protest against the slowness in the progress of the Chilean education reform, in Santiago

Students march to protest against the slowness in the progress of the Chilean education reform, in Santiago

Students dance in front of riot police as they march to protest against the slowness in the progress of the Chilean education reform, in Santiago