Blogger Firedoglake deconstructs Arne Duncan’s flawed effort to explain why he castigated “white suburban moms.”

Duncan, he says, does not understand basic economics. Nor does he know that grading teachers has nothing whatever to do with improving schools. How many nations in the world are grading teachers by the test scores of their students? None that I know of. Instead, they have built a strong teaching profession that is judged by their peers and their expert supervisors, not by student test scores.

Firedoglake writes of the putdown:

It is the kind of condescending attitude one expects from education privatizers. But when confronted with such an amazingly arrogant statement Secretary Duncan only apologized for the “clumsy” phrasing, not the sentiment. Then he went on a long diatribe about economics and education that made it clear Duncan had not been properly educated on the subject.

[American children] are competing for jobs in India, China, Singapore, South Korea – that’s the competition we all need to come together and help our students be successful there. And the best way to do that is to grade teachers.