This page was sent to you by:  carnen@mac.com OPINION   | January 12, 2012 Op-Ed Columnist:  The Value of Teachers By NICHOLAS D. KRISTOF A new study suggests a great teacher is worth hundreds of thousands of dollars in increased earning power to students. It's time to overhaul our education policy. Advertisement The Descendants Starring George Clooney, and directed by Alexander Payne (Sideways, Election) Now Playing in theaters. Click here to watch the trailer Copyright 2012  The New York Times Company | Privacy Policy