The thing about startups is you can make it, and if it's wrong you can remake it, and you can build a team that you want to have, a product that you want to have. You're utterly focused on your users or your customers and their needs, and trying to figure out how to meet those needs.

No two children learn in the same way. While we might agree that every American eight-year-old should be able to read and multiply, beyond those basics, there are few reasons to make every student follow the same path.

When I was a student at Princeton University, I was working part time in a grocery store. I saw an ad for teachers of a prep course. I don't remember what it paid, but it was easily double or triple the minimum wage.

We should get rid of the SAT as fast as we can. Look, there are bigger problems in society. This is not the biggest problem we have. But it's so easy to get rid of it. Right? Just pull the plug.

Almost everyone who has claimed to know what kids need to learn or how they learn has turned out to be wrong.

I'd never taken an SAT prep course. They were for weaker students.

Exciting discoveries in neuroscience are allowing us to fit educational methods to new understandings of how the brain develops.