In New York City, fifty percent of all public school teachers leave the profession within their first five years on the job. While the teachers union and some politicos have charged that the high attrition rate is due to the salary gap between city teachers and their brethren in the suburbs, the real problem is student behavior. There are approximately 1.1 million public school students, and many of them, especially those in poor neighborhoods, have family problems that make it hard for them to sit still for five hours a day. These students may come from homes with no books, where TV sets blare all day, where no parent or older sibling has a college degree, where generations of kids have found the world of academics foreign, frustrating, and fruitless. Because many of these students cannot read a menu or calculate two-digit addition problems, They find long hours in the classroom tortuous. And while classrooms can absorb one or two these kids-that is, the teacher can teach with a minimum of disruption-classrooms with four or more problem students reach a critical mass. The bad kids tip the good kids, and the simplest lesson becomes a test of wills between teacher and student. Only the most patient, most gifted teacher can endure more than a couple of years of these daily battles. If she wants to keep teaching, she flees for greener pastures-schools like Bronx Science, Stuyvesant, Midwood-or a school in Westchester. The result is alarming:perhaps half of the city’s 1000 schools have green-horn teachers with only a few years experience. Many of these novices don’t know there subjects and don’t know how o control a room filled with difficult kids. Many soon find non-teaching jobs. As a result, the teaching profession, at least the way it’s practiced in New York City, becomes a form of slumming, or something to do until you grow up-like the Peace Corps or the army.