This piece describes the widely held perception among education leaders that we already know how to help teachers improve, and that we could achieve our goal of great teaching in far more classrooms if we just applied what we know more widely.
Jacob, A., & McGovern, K. (2015). The mirage: Confronting the hard truth about our quest for teacher development. Brooklyn, NY: TNTP. https://tntp.org/assets/documents/TNTP-Mirage_2015.pdf.
A study of 27 promising programs reveals 8 common reasons that educational innovations fail, including disenchanted practitioners; departure of innovation supporters; lack of personnel training; disappearing funding; inadequate supervision; and lack of accountability, administrative support, and termination consequences. Innovations succeed by avoiding overload, complementing school mission, and securing board approval
Latham, G. (1988). The birth and death cycles of educational innovations. Principal, 68(1), 41-43.
Describes a Sonoma County (California) school district's peer coaching program designed to meet the needs of new, probationary, and experienced teachers. The program succeeded because participation was voluntary, the training empowered teachers and improved their coaching skills, and teachers continued to meet as a group and learn from each other.
Raney, P., & Robbins, P. (1989). Professional growth and support through peer coaching. Educational Leadership, 35(6), 35-38.