After a three-year, $45 million research project, the Bill and Melinda Gates Foundation believes it has some answers.
The most reliable way to evaluate teachers is to use a three-pronged approach built on student test scores, classroom observations by multiple reviewers and teacher evaluations from students themselves, the foundation found.
“We identified groups of teachers who caused students to learn more,” said Thomas J. Kane, a professor at the Harvard Graduate School of Education and principal investigator of the Gates study, also known as the Measures of Effective Teaching project.
The findings released Tuesday involved an analysis of about 3,000 teachers and their students in Charlotte; Dallas; Denver; Memphis; New York; Pittsburgh; and Hillsborough County, Fla., which includes Tampa. Researchers were drawn from the Educational Testing Service and several universities, including Harvard, Stanford and the University of Virginia.
The large-scale study is the first to demonstrate that it is possible to identify great teaching, the foundation said.
Researchers videotaped 3,000 participating teachers and experts analyzed their classroom performance. They also ranked the