like khan academy exist. so the lab school that we developed is to be one of those. if you think about those who would send their children that most children experience in terms of education, it is pretty much one type of school system. good schools and bad schools but do you think there's something wrong with the whole system, something more fundamental. what is wrong with the way we think about education in america? >> what happened in traditional schools for the last 200 years including once we grew up in. you group people together around age and perceived ability and you move them at a set pace. what typically happens is a teacher gives an a lecture on exponents some of us get it, some of us don't. >> steve: i definitely don't.