New Research Confirms the Importance of Spreading Teacher Expertise
I have seen far too many teachers either refuse to share their expertise or refuse to see the expertise of others. Hopefully this kind of research will encourage more to seek and share.
As policymakers focus on identifying and rewarding effective teaching, they should pay close attention to an important new study demonstrating the powerful effect of teacher collaboration in producing greater student achievement gains.
Using 11 years of student data in North Carolina, researchers have found that most value-added achievement gains are attributed to the make-up of teacher teams, not the traits and characteristics of individual teachers. Drawing on sophisticated analyses of this large database, they reported in a paper published by the National Bureau of Economic Research that peer learning among small groups of teachers seems to be the most powerful predictor of student achievement over time.
Researchers C. Kirabo Jackson and Elias Bruegmann found that “students have larger test score gains when their teachers experience improvements in the observable characteristics of their colleagues.” Less experienced teachers who are still acquiring “on-the-job” skills are most sensitive to changes in peer quality; teachers with greater labor-market attachment are more sensitive to peer quality; and both current and historical peer quality changes affect current student achievement.