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{{short description|Teaching improvement process}}
'''Lesson study''' (or ''jugyō kenkyū'') is a teaching improvement process that has origins in [[Japan]]ese [[elementary education]], where it is a widespread [[professional development]] practice. Working in a small group, teachers collaborate with one another, meeting to discuss learning goals, planning an actual classroom lesson (called a "research lesson"), observing how their ideas work in a live lesson with students, and then reporting on the results so that other teachers can benefit from it.

Although "lesson study" is the most common translation, ''jugyō kenkyū'' can also be translated as ''instructional research, lesson research,'' or ''study of instruction'', translations which perhaps better convey that the purpose of the process is usually to improve instruction generally, rather than to refine one lesson.<ref name="Lewis_Akita_Sato">{{cite journal|last1=Lewis|first1=Catherine|last2=Akita|first2=Kiyomi|last3=Sato|first3=Manabu|title= Lesson Study as a Human Science|journal= National Society for the Study of Education|date=2010|volume=109|issue=1|language=English|pages=222–237}}</ref>

== Different levels of lesson study ==

In Japan, lesson study is conducted at the school, district, and national levels.<ref name="Takakashi2006">{{cite journal|last1=Takahashi|first1=Akihiko|title= Types of elementary mathematics Lesson Study in Japan: Analysis of features and characteristics|journal= Journal of Japan Society of Mathematical Education, Mathematics Education |date=2006|volume=88|issue=8|language=Japanese|pages=2–14}}</ref> Features common to all three levels are:
* preparation of a detailed lesson plan, providing background research information, lesson goals, connections to state or local learning standards, reasoning behind the design of the lesson, and steps of the lesson along with anticipated student responses;
* observation of a live lesson conducted with students (the ''research lesson''); and
* a discussion following the lesson, analyzing its impact on students and implications for future instruction.

School-, district-, or national-level lesson study differ with respect to the students they consider.<ref name="Fujii2016">{{cite journal |last1=Fujii |first1=Toshiakira |title=Designing and adapting tasks in lesson planning: a critical process of Lesson Study |journal=ZDM |date=2016 |volume=48 |issue=4 |pages=411–423 |doi=10.1007/s11858-016-0770-3 |s2cid=255432909 |doi-access=free }}</ref>
* '''School-based lesson study''' (discussed in more detail below) aims to address a school-wide ''research theme''.
* '''District-level lesson study''' is often used for schools to share learning with other schools. A school might have an open house, with research lessons held at every grade, which district leaders and educators from other schools will attend.
* '''National-level lesson study''' is conducted by enthusiastic volunteers who are also very experienced, highly respected teachers. The research lesson is done at a major conference. The objective may be to explore new content or to present a new approach to teaching particular content. National-level research lessons often inform changes in the national Course of Study.

Despite differences between Japanese and American educational systems (see [[Education in Japan]] and [[Education in the United States]]), the practice is gaining in popularity in the United States in K-12 education and [[teacher training]] (See [[Instructional rounds]]), and more recently it is finding a home in [[higher education]] as a form of [[faculty development]].

This is a specific example of the ongoing Japanese devotion to the Plan-Do-Check-Act [[PDCA]] decision-making discipline pioneered by [[W. Edwards Deming]], which is based upon the Shewhart Cycle (named after Deming's collaborator from [[Bell Telephone Laboratories]], [[Walter A. Shewhart]]).

==School-based lesson study==

[[File:School-based Lesson Study graphic.png|thumb|Graphical depiction of school-based lesson study developed by [http://LSAlliance.org Lesson Study Alliance.]]]

The most common form of lesson study in Japan is school-based. In contrast to the other forms of lesson study, school-based lesson study usually involves a sequence of research lessons, extending through one or more academic years, focused on a common teaching/learning issue referred to as the ''research theme.'' A research theme may be content-specific – e.g. "For students to see the connection between science and their everyday lives" – or cross-curricular – e.g. "For students to clearly express their ideas and carefully consider the ideas of their friends" – or affective – e.g. "For students to feel the joy of learning."

Another common objective of school-based lesson study is to address changes in the national Course of Study, which in Japan is revised every 9 years or so.<ref>{{cite journal|last1=Takahashi|first1=Akihiko|last2=McDougal|first2=Thomas|title=Implementing a new national curriculum: Case study of a Japanese school's 2-year Lesson Study project|journal=Annual Perspectives in Mathematics Education: Using Research to Improve Instruction|date=2014|pages=13–21}}</ref>

Through multiple research lessons at different grade levels, a school faculty works toward a common vision of how to achieve their goals. Since the goal is not to refine individual lessons, it is not considered a normal part of lesson study to revise and reteach a lesson, although that is done on occasion.<ref name="Fujii2016" />

The median time for the planning of one research lesson in Japan is more than 5 weeks.<ref>{{cite conference|last1=Murata|first1=A.|last2=Takahashi|first2=A.|title=District-level lesson study: how do Japanese teachers improve their teaching of elementary mathematics?|year=2002|series=Annual Conference of the National Council of Teachers of Mathematics|place=Las Vegas, Nev.}}</ref>

==References==
{{reflist}}

==External links==
*[http://www.lessonresearch.net/ Lesson Study Group at Mills College]
*[http://LSAlliance.org/ Lesson Study Alliance in Chicago]
*[https://texaslessonstudy.org/ Texas Lesson Study]
*[http://www.lessonstudy.net/ Institute for Lesson Study Research and Application]
*[http://www.globaledresources.com/ Global Education Resources]
*[http://www.impuls-tgu.org/ IMPULS Improving Math teacher Profesionalization Using Lesson Study (Tokyo Gakkugei University)]
*[http://www.uwlax.edu/sotl/lsp/index.htm Lesson Study Project (higher education)]
*[http://gallery.carnegiefoundation.org/collections/keep/sfletcher/tresearch3.html Integrating mentoring and action research into Kounai-ken: teachers' professional development with Japanese abilities]
* [http://www.sowi-online.de/journal/2004-1/lesson_lewis.htm Does Lesson Study Have a Future in the United States?]
* [http://www.criced.tsukuba.ac.jp/math/apec/ APEC (Asian Pacific Economic Cooperation) Lesson Study Project]
* [https://web.archive.org/web/20100821012633/http://www.worldscibooks.com/etextbook/6339/6339_toc.pdf International Lesson Study Movements supported by JICA (Japan International Cooperation Agency)]
*[http://www.devstu.org/lesson-study/ Lesson Study at Developmental Studies Center]
*[http://www.lessonstudy.co.uk/ Support, resources and case studies from across the UK]

{{Education}}

[[Category:Learning]]
[[Category:Pedagogy]]

Lesson study - Revision history

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