There are a number of reasons why L

There are a number of reasons why Lesson Study offers the potential forsustained professional development. First, it offers teachers the opportunity todevelop professional communities of inquiry, with ownership of theimprovement effort, a commitment to inquiry, shared goals, and a sense ofresponsibility to their colleagues and students (Lewis et al., 2009). Secondly, while progress is often slow at the start, the process can evolveover time with teachers beginning by weaving “some of the simpler componentsof lesson study (such as collaborative lesson planning) in with their existingpractices, and only later ... [grasping] the significance of other ideas such asdeveloping a lesson rationale and documenting their own learning