Education Next – Grover J. “Russ” Whitehurst, Matthew M. Chingos and Katharine M. Lindquist
“It is widely understood that there are vast differences in the quality of teachers: we’ve all had really good, really bad, and decidedly mediocre ones. Until recently, teachers were deemed qualified, and were compensated, solely according to academic credentials and years of experience. Classroom performance was not considered.” (more)