In recent weeks, several articles have appeared in the main U.S. newspapers– including the Washington Post and the New York Times – discussing the potential benefits and pitfalls of the Los Angeles Times’ decision to publish performance data on individual teachers. Together with an economist, LA Times’ reporters used long-existing data on student test scores by teacher over time, to estimate individual teachers’ “value-added”, that is, the change in a student’s test score in the year that they had a specific teacher, attributing this change to the teacher’s effectiveness. They found enormous variation in the change in scores of students of particular teachers, and published the names of some teachers – both the “best” and “worst”. Further, the paper announced that it will soon release the approximate rankings of all individual teachers in LA.
Will public accountability of individual teacher performance contribute to improve education quality in Los Angeles? Is this something that other education systems around the world struggling with finding options to raise teaching quality and student learning outcomes consider?