Specific information about teachers’ pedagogical skills, content knowledge, classroom management, etc. which is used as a basis for continuous improvement. More broadly, it is a way of reinforcing or altering how someone does something in the future by giving specific examples of what has worked well in the past and what could be done differently.
Feldman, K. 2016. Actionable Feedback for Teachers: The Missing Element in School Improvement. St Paul: Minnesota Association of School Administrators. Retrieved from: https://www.mnasa.org/cms/lib6/MN07001305/Centricity/Domain/44/Feldman%20Actionable%20Feedback%20for%20Teachers.pdf