The past year has seen the emergence of a broad consensus on raising the standards for entering the teaching profession. The NEA, AFT, and Council of Chief State School Officers all have said they want higher entry standards. Such an exam would be modeled after other professions and is a potential game changer. If sufficiently rigorous, the exam…

Teacher quality has become a hot topic. Everyone wants to measure it, reward it, or improve it. One reason for this interest is the evidence that teachers differ dramatically in their ability to raise student test scores. Another reason for the current interest in teacher quality is that recent No Child Left Behind requirements focus on highly…