New York City has released the rankings of thousands of public school teachers who were rated on their ability to affect students' progress on standardized tests.
The rankings track 18,000 math and English public school teachers from fourth through eighth grades.
The New York Times reports that three years of ratings were released. They're based on how students progressed from one year to the next. The rankings gauge the extent to which their teachers were responsible for the students' progress.
The release of the information comes after a yearlong legal battle with the United Federation of Teachers. It sued unsuccessfully to keep the names confidential.
School administrators, teachers and others have criticized the Teacher Data Reports. Critics say there are large margins of error and factual errors or omissions.