“What’s the Difference between Boston and Tennessee?”
In a word, quality. “Tennessee doesn’t have a coherent vision,” Dale Farran, a Vanderbilt professor and the Tennessee study’s co-author, told me. “Left to their own devices, each teacher is inventing pre-K on her own.” See David Kirp’s article, Does Pre-K Make Any Difference?, in response to the recent Pre-K study in Tennessee.