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"Lesson Study" as Professional Culture in Japanese Schools: An Historical Perspective on Elementary Classroom Practices

based on historical data is the primary approach used in this research. Detailed description and analysis of lessons are provided, individual lesson plans are examined and exchanges of views between teachers are discussed. The findings are intended to help clarify the cultural and historical role of lesson based research in Japanese schools, and also the significant influence that lesson study has exerted on developing a culture of shared professionalism in Japan.