Christine Quinn has made the trip. As has Bill Thompson. Bill de Blasio's been here. John Liu, too What's happening here? A model of educational innovation yielding big results, and catching the country's attention.
There comes a time when many fine examples of how to improve learning and life conditions for our children and young people hits a ceiling. They cannot get to scale, because as exemplary as they may be, they have an "isolated impact" on the issues.