November 30 | Los Angeles Times

By Teresa Watanabe and Howard Blume  

After months of tense negotiations, the Los Angeles Unified School District and its teachers union have tentatively agreed to use student test scores to evaluate instructors for the first time ever, officials announced Friday.

Under the breakthrough agreement, the nation’s second-largest school district would join Chicago and a growing number of other cities in using test scores as one measure of how much teachers help a student academically progress in a year.

Alarm over low student performance, especially in impoverished and minority communities, has prompted the Obama administration and others to press school districts nationwide to craft better ways to identify struggling teachers for improvement.