Here's a summary from his recent post, Favorite Posts of 2012: Deepening the Dialogue, but I encourage you to go to the original and read it in it's entirety:
Choice in education is an illusion. In some cases it allows a lucky few access to a better school. But those seeking profit rarely want a level playing field - they seek whatever advantages they can get, and often that means leaving behind the special education student and the English learner.
As a parent, I was not only concerned about my own sons. I wanted the best education possible for all the children of our community. The public schools were a legacy handed to us by generations before that built them. It is our challenge to rebuild them into places that fulfill that now tarnished ideal, to educate everyone well. It is critically important that institutions such as our schools be driven not by decisions based on what is most profitable, but instead by our interest in the common good, and by our commitment to providing excellent opportunities for every child, even when this is unprofitable.
In the process by which decisions are being made about our schools, private companies with a vested interest in advancing profitable solutions have become ever more influential. The Gates Foundation has tied the future of American education to the capacity of the marketplace to raise all boats, but the poor are being left in leaky dinghies.
Neither the scourge of high stakes tests nor the false choices offered by charter schools, real or virtual, will serve to improve our schools. Solutions are to be found in rebuilding our local schools, recommitting to the social compact that says, in this community we care for all our children, and we do not leave their fate to chance, to a lottery for scarce slots. We have the wealth in this nation to give every child a high quality education, if that is what we decide to do. With the money we spent on the Bush tax cuts for millionaires in one month we could hire 72,000 more teachers for a year. It is all about our priorities.