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

The jobs of the future, as you know so well, are knowledge-based. You need college-educated folks to do this work. And so the consequences for our country are absolutely devastating if we don't start to behave in very different ways.

Schools and districts and unions are working together on some really innovative things.

Almost 24 million children - one in three - are likely growing up without their father involved in their lives.

At a time when going to college has never been more important, it's never been more expensive, and our nation's families haven't been in this kind of financial duress since the great depression. And so what we have is just sort of a miraculous opportunity simply by stopping the subsidy to banks when we already have the risk of loans. We can plow those savings into our students. And we can make college dramatically more affordable, tens of billions of dollars over the next decade.

Teachers say their schools of education did not adequately prepare them for the classroom. They would have welcomed more mentoring and feedback in their early years.

We need to lengthen the school day. We need to lengthen the school year. Our calendar is based upon the agrarian economy. Children in India and China are going to school 25, 30, 35 more days a year. They're just working harder than us. So, we need more time, particularly for disadvantaged children, who aren't getting those supports at home.