The present study attempts to report a collaborative cycle of professional development in teaching elementary school mathematics through lesson study. It explores a practice of lesson study conducted by teachers aiming to improve their knowledge of pedagogy. The study adopts an ethnographic approach to examine how collaborative teaching within an…

I clarify in this chapter what Iran can learn from Japan's experience of jugyou kenkyuu(lesson study) model, and what we can apply to the Iranian educational context. The chapter also discusses the process, progress and challenges of incorporating jugyou kenkyuu into Iranian teacher training. I examine how Iranian teachers and school…