It is a school-based teacher-led continuing professional development model for teachers. It originated in Japan in 1872.
It is a professional learning process in which teachers work collaboratively to:
formulate goals for students learning in long-term development
develop “research” lessons to bring those goals to life
implement the lesson and document observations
discuss the evidences gathered during the lesson implementation and use them to improve the lesson
teach and study the lesson again to further refine it.
It provides teachers an opportunity to see teaching and learning in the classroom. This enables them to develop a common understanding of what effective teaching practice entails in relation to student thinking and learning.
It keeps students at the heart of professional development activities
Being teacher-led, teachers can be actively involved in instructional change and curriculum development.