"A stack of research suggests that all the classroom technology in the world can't compare to the power of a great teacher. And, since we haven't yet figured out how to clone our best teachers, a few schools around the country are trying something like it: Stretching them across multiple classrooms.
"We'll probably never fill up every single classroom with one of those teachers," says Bryan Hassel, founder of Charlotte-based education consulting firm Public Impact. But, he says, it's important to ask: "How can we change the way schools work so that the great teachers we do have can reach more of the students, maybe even all of them?""