A somewhat different take about the effects of good teaching than I’ve read before. The study applies to elementary and middle school teachers, but the implications are probably relevant for all teaching, that good teachers help people do better in life as a whole, not just in terms of better subject scores. Intuitively, we’ve always argued something like this for our work at JBU, but this article makes the argument more concrete.
http://www.nytimes.com/2012/01/06/education/big-study-links-good-teachers-to-lasting-gain.html?src=me&ref=general