This video was posted to reddit recently. It should be required viewing for anyone involved in education.
p.s. I am sticking with this blog title, even though the speaker questions if "uncritical" thinking is a non-sequitur.
Terry Gross interviewed Diane Ravitch this week on Fresh Air (mp3). She spoke against rating teachers' performance using their students' test scores.
She also interviewed Andrew Rotherman (mp3), who defended the charter school model.