Lesson study is known as an effective Japanese professional development approach for teachers, since 1999.After that, this approach used dramatically as a way for improving teaching and learning in classroom through many countries and by many researchers. Review the literature of lesson study show that there is one common effort between the researchers to apply this approach. That is to make local model for using this Japanese approach as a localized one to release the unavoidable challenges of applying the method of another educational culture. This paper first reviews the literature on lesson study as a way of teachers\' professional development, which has been conducted since Meiji Period in Japan and is conducting for today\'s teaching in classroom. Then it clarifies how Iranian mathematics teachers encountered with this method. Finally, the finding of this research addresses a general translated model of lesson study that is preferred to apply lesson study for Iranian culture of education.

Lesson study is known as an effective Japanese professional development approach for teachers, since 1999.After that, this approach used dramatically as a way for improving teaching and learning in classroom through many countries and by many researchers. Review the literature of lesson study show that there is one common effort between the researchers to apply this approach. That is to make local model for using this Japanese approach as a localized one to release the unavoidable challenges of applying the method of another educational culture. This paper first reviews the literature on lesson study as a way of teachers\'' professional development, which has been conducted since Meiji Period in Japan and is conducting for today\''s teaching in classroom. Then it clarifies how Iranian mathematics teachers encountered with this method. Finally, the finding of this research addresses a general translated model of lesson study that is preferred to apply lesson study for Iranian culture of education.