Teacher Grades: Pass or Be Fired

WASHINGTON — Emily Strzelecki, a first-year science teacher here, was about as eager for a classroom visit by one of the city’s roving teacher evaluators as she would be to get a tooth drilled. “It really stressed me out because, oh my gosh, I could lose my job,” Ms. Strzelecki said.

Her fears were not unfounded: 165 Washington teachers were fired last year based on a pioneering evaluation system that places significant emphasis on classroom observations; next month, 200 to 600 of the city’s 4,200 educators are expected to get similar bad news, in the nation’s highest rate of dismissal for poor performance.