手法を比較

	談話分析	Lesson Study
分野	質的研究	フィールド調査法
系統	Process / pipeline	Process / pipeline
提唱年	1989 (Fairclough); 1987 (Potter & Wetherell)	Late 19th century Japan; international dissemination from 1999
提唱者	Norman Fairclough; Jonathan Potter and Margaret Wetherell	Japanese elementary school teachers (formalized); introduced to Western research by James Stigler & James Hiebert
種類	Method	Collaborative practitioner inquiry / professional development research
原典	Fairclough, N. (1989). Language and power. Longman.	Stigler, J. W., & Hiebert, J. (1999). The Teaching Gap: Best Ideas from the World's Teachers for Improving Education in the Classroom. Free Press. ISBN: 978-0684852744
別名	DA, Critical Discourse Analysis, Discursive Analysis	Jugyou Kenkyuu, LS, collaborative lesson research, teaching study
関連	2	5
概要	Discourse analysis is a qualitative research methodology that examines how language, communication, and power shape meaning, identity, and social reality. Developed across linguistics, sociology, and psychology (particularly by Norman Fairclough and Jonathan Potter), discourse analysis goes beyond content to analyze language use as a social practice that constitutes and reflects power relations, ideologies, and social structures.	Lesson study is a structured, cyclical form of professional development and educational research in which a team of teachers collaboratively plans a single 'research lesson,' observes it live in a classroom, analyzes student learning in detail, revises the lesson, and shares findings with the broader teaching community. Originating in Japanese elementary schools and brought to international attention by Stigler and Hiebert's 1999 comparative study, it has become one of the most widely adopted teacher-led inquiry methods worldwide.