New standards may kill desire to rate teachers by test scores
By Jay Mathews 03/01/2012 The Washington Post
Heverly is pointing to something important but unmentioned in the Common Core debates that I have read. These new tests in nearly every state will delay, if not stop altogether, the national move toward rating teachers by student score improvements. School districts can’t do that when the tests change so radically. They might have to wait years to work out the kinks in the tests before using them to assess teachers.