Educational methods guru Doug Lemov says even first year teachers can change the world. He says the smarter path to boosting student performance is to improve the quality of the teachers who are already teaching. So how would Doug Lemov take on the problems at the Clark County School District? We talk with Doug as part of our summer education series. We ask him about the best methods for turning around under-performing schools and teachers. And what he thinks can be done in Clark County.