Two nonprofit boards that certify teachers commissioned studies to see if students learned more when taught by teachers certified as excellent. Linda Seebach looks at the results:
Teachers who pass the subject and teaching tests developed by the American Board for Certification of Teacher Excellence have students who do better in school, especially in math, compared to students whose teachers didn’t pass the tests. The board aims to get career changers into teaching, with a focus on math.
By contrast, the National Board for Professional Teaching Standards study — the “overview” is posted, but not the study — shows little difference in effectiveness between teachers who earn the credential and those who don’t.
Update: Eduwonk has more.