Key Coverage

More Teachers Green in the Classroom

The end result: a more than threefold increase in the sheer number of inexperienced teachers in U.S. schools. In the 1987-88 school year, Ingersoll estimates, there were about 65,000 first-year teachers; by 2007-08, the number had grown to more than 200,000. In the 1987-88 school year, he found, the biggest group of teachers had 15 years of experience. By the 2007-08 school year, the most recent data available, the biggest group of teachers had one year experience.