I think the best thing that happened to the education system in New Orleans was Hurricane Katrina.

Teachers support evaluations based on multiple measures: student growth, classroom observation and feedback from peers and parents.

This is a devastating problem, is, the longer our children are in school, the worse they do. Year after year after year, our children in America are falling further behind. Our 3- and 4-year-olds enter kindergarten OK, and they fall further and further behind. Each year, children in other countries are learning more than children in this country. And so the gap between American student performance in Singapore and Finland and South Korea and Canada and these other countries, the gap widens year after year after year.

I think the best thing that happened to the education system in New Orleans was Hurricane Katrina.

When I ask teachers why they teach, they almost always say that it is because they want to make a difference in the lives of children.

We need to invest in very different ways. Get the students the support they need, get them the best principals, get them the great teachers, and I promise you those students would do extraordinarily well. I have seen it all my life.

I believe that education is the civil rights issue of our generation. And if you care about promoting opportunity and reducing inequality, the classroom is the place to start. Great teaching is about so much more than education; it is a daily fight for social justice.