Teacher Ratings Get New Look, Pushed by a Rich Watcher

The New York Times reports:

In most American schools, teachers are evaluated by principals or other administrators who drop in for occasional classroom visits and fill out forms to rate their performance.

The result? More than 9 out of 10 teachers get top marks, according to a prominent study last year by the New Teacher Project, a nonprofit group focusing on improving teacher quality.

Now Bill Gates, who in recent years has turned his attention and considerable fortune to improving American education, is investing $335 million through his foundation to overhaul the personnel departments of several big school systems. A big chunk of that money is financing research by dozens of social scientists and thousands of teachers to develop a better system for evaluating classroom instruction.