Why are Public Schools So Bad at Hiring Good Instructors?

Ray Fisman:

PS 49 in Queens used to be an average school in New York City's decidedly below-average school system. That was before Anthony Lombardi moved into the principal's office. When Lombardi took charge in 1997, 37 percent of fourth graders read at grade level, compared with nearly 90 percent today; there have also been double-digit improvements in math scores. By 2002, PS 49 made the state's list of most improved schools. If you ask Lombardi how it happened, he'll launch into a well-practiced monologue on the many changes that he brought to PS 49 (an arts program, a new curriculum from Columbia's Teachers College). But he keeps coming back to one highly controversial element of the school's turnaround: getting rid of incompetent teachers.

Firing bad teachers may seem like a rather obvious solution, but it requires some gumption to take on a teachers union. And cleaning house isn't necessarily the only answer. There are three basic ways to improve a school's faculty: take greater care in selecting good teachers upfront, throw out the bad ones who are already teaching, and provide training to make current teachers better. In theory, the first two should have more or less the same effect, and it might seem preferable to focus on never hiring unpromising instructors—once entrenched, it's nearly impossible in most places to remove teachers from their union-protected jobs. But that's assuming we're good at predicting who will teach well in the first place.

Posted by Jim Zellmer at July 20, 2008 6:33 AM
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