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Japanese lesson study (LS) is a professional development approach in which teachers collaboratively plan a lesson, observe it being taught and then discuss what they have learnt. LS’s global spread is increasing but studies have identified several challenges to its implementation: the lack of structures and systems to accommodate LS (especially time); the focus on demonstrating short-term impact; a lack of teacher research skills; a dearth of access to quality learning and research material; the absence of available koshis; and accountability pressures. The purpose of this paper is to examine the “translation” of Japanese LS through a case study of one English secondary school.

This study is a case study of a single school which has been using LS as an approach to professional development for five years. A documentary analysis of the school’s LS Handbook sought to understand the school’s approach to LS as articulated by senior leadership. Six observations of the schools LS processes were then carried out including planning, research lessons and post-lesson discussions. Finally, one senior leader who had led LS implementation and five teachers who had been working in the school during the implementation stage were interviewed. The findings are analysed against Seleznyov’s (2018) seven critical components of Japanese LS.

Several key deviations from Japanese LS are identified including: a lack of whole school theme studied over time; little kyozai kenkyu and no written lesson planning; teachers deviating from the role of observers in research lessons; no facilitator and little use of discussion protocols; no koshi; and struggles to ensure mobilisation of knowledge between LS groups. Several of these represent gaps between the school’s LS policy and practices. The findings show that LS practices have become diluted over time and that giving teachers choices seems to have led to teachers not adhering to important aspects of the LS policy.

One of the limitations of the research is its focus on the perceptions of a small group of teachers who were likely to be more passionate about LS than others, and perhaps a deeper understanding of the challenges to implementation might be enabled by interviewing a wider range of engaged teachers, especially those who are perceived as “resisting” full engagement. Further research might also explore whether the implementation challenges faced by this school are replicated in other English schools and in other countries using LS as an approach to professional development.

Several implications for English school leaders seeking to implement LS are discussed, including the need to articulate the rationale for the protocols that shape LS, especially for staff new to the school and to check that important protocols are adhered to over time.

Whilst several studies of LS in the UK have explored its impact on teachers and pupils, and the challenges and successes of introducing LS into a UK context, this study provides a different perspective. It explores the challenges of using LS over time as a consistent approach to professional development in a school and seeks to understand how both resistance and dilution can affect its impact on practice.

The purpose of this paper is to review the research concerning the use of lesson studies in the education of secondary school prospective mathematics teachers. It discusses the adaptations made on the designs, the aims and outcomes established, the processes used, and the needed improvements in the experiences reported so far.

The scientific studies reviewed were identified in a Google search, using the key words “lesson study”, “mathematics”, and “secondary.” The identified material was recorded in a database and the themes for the analysis cover the planning, execution, and reflection phases of a formative process.

The paper identifies the several pending issues regarding the use of lesson studies in prospective teacher education such as defining the aims, establishing the relationships among participants, scaling, and adapting lesson studies for the particular purpose of educating future teachers.

At a practical level, this review suggests that lesson studies in pre-service teacher education must have a clear formative aim. It also shows that many formats are possible and must be chosen according to the specific conditions. In addition, it suggests the need for research regarding the definition of the aims, the working relationships established among participants, the problem of scale, and the problem of adaptation or simplification.

The paper identifies the key issues in the design of lesson studies in initial teacher education. It argues that besides signaling the positive outcomes, more critical (or self-critical) investigations are needed, e.g. using external researchers as “critical friends”, which address their difficulties, limitations, and drawbacks in a more thorough way.

To understand how lesson study (LS) can promote the development of pedagogical content knowledge (PCK) of prospective primary teachers. More specifically, to know what PCK prospective primary teachers develop during LS and how this development occurs.

Following a qualitative approach, this study took place in a teacher education institution where a LS was carried out during the last semester of the academic year with the participation of two prospective teachers, a teacher educator, a cooperating teacher and a researcher.

The results suggest that prospective teachers may develop PCK when they participate in LS, regarding lesson planning (goals and lesson plan), task design, students' difficulties and solving strategies, whole-class discussions and observation of student learning. This development occurs through the engagement in LS activities that allow prospective teachers to deepen their knowledge.

This study investigates how the development of prospective teachers' PCK occurs during LS, providing knowledge about how different activities of the LS help develop different aspects of PCK.

The purpose of this paper is to describe the design and delivery of a lesson study unit in mathematics to pre-service primary teachers and to identify the opportunities and challenges resulting from the need to deliver the unit wholly online due to the COVID-19 pandemic.

Cross-case analysis, using a before-and-after design, was used to compare the development and delivery of the unit in 2019 and 2020, with the pivotal event of interest between the before-and-after cases being the onset of the COVID-19 pandemic.

The content and structure of the unit, as well as its collaborative aspects, remained substantially the same in the before-and-after cases. While there was a low level of engagement with pre-recorded lectures, there was a high level of engagement and participation in the online synchronous seminars, together with a marked increase in overall satisfaction with the unit. Pre-service teachers were unable to teach and observe one another's planned research lessons in school. Instead, after a detailed examination of the task, the lesson plan and student solutions, they observed a pre-recorded video of a research lesson at a local school and participated in a streamed post-lesson discussion. Pre-service teachers regarded this new component as a highlight of the unit and an important connection between the theory and practice of lesson study.

The inclusion of the video-recorded research lesson in 2020 introduced a new level of authenticity for pre-service teachers, allowing them to observe a high quality structured problem solving mathematics lesson taught in a local public school, as part of a local implementation of lesson study-something that is not generally possible. While there is often a view that the benefits of lesson study result mainly from collaborative planning and teaching of the research lesson, this paper highlights the value of involvement for all participants in research lesson observation and post-lesson discussion, as well as the opportunities afforded by the use of “virtual lesson study”.

The purpose of this paper is to explain how initial teachers in Japan can develop instructional and thinking skills through lesson study with mentors. It will clarify the point of view in which mentors evaluate the lesson plan, research lessons and kyouzai-kenkyuu of initial teachers.

This study adopts a case analysis that shows how a mentor gives advice to an initial teacher in the post-lesson discussion. In Japanese lesson study, the time schedule of the post-lesson discussion is well structured, so the time for a mentor to state his or her comment is limited to around ten minutes. Mentors try to help initial teachers develop instructional and thinking skills.

From simple problem to high-level cases in which finding the problem of a lesson is difficult, only a highly competent mentor can find the problem and suggest improvements. Mentors need the competency to observe the lesson and the knowledge and skills to improve the lesson.

This paper focusses on how mentors can help develop the kyouzai-kenkyuu understanding of initial teachers. More studies that focus on how mentors can train initial teachers to understand how students learn during lessons are needed.

This paper discloses what Japanese teachers think of lesson plans and kyouzai-kenkyuu and how mentors help develop kyouzai-kenkyuu understanding among initial teachers.

The purpose of this paper is to report on how an academy used lesson study to engage teachers in research, presenting the journey undertaken from its conception through to the implementation of the model. It suggests that lesson study is a suitable process to engage teachers in meaningful research. It shows that lesson study allows teachers to focus on their own practice and on the learning of their students and it is ideal in bridging the gap between research and practice. It will also show that research is enhanced through lesson study because it brings teachers together to work in a collaborative way.

The paper reports the intended and actual journey an academy took in planning and implementing lesson study across the academy.

The paper provides an explanation on how a school can set up a model which engages its teachers in relevant research. It explains how lesson study can be used as a powerful research tool which helps teachers develop collaboration and investigative minds around their own practice and their own students. It also puts forward recommendations for a school that would seek to introduce lesson study to its staff.

The paper provides an account for school leadership teams and those with responsibility for developing the practice of other teachers. It will be helpful in assisting schools who desire to strengthen or develop the time devoted to teachers’ professional development.

Very little effort has been dedicated to the teaching of serious game design and development. At the post-secondary level, very few courses dedicated to serious game design and development exist. At the K-12 level, although (entertainment) game design and programming instruction are becoming more widespread, serious game design and development is ignored. This study aims to present a series of lesson plans that allow K-12 teachers to introduce students to serious game design and development.

The lesson plans include both a didactic and applied component and are intended to provide students with an introduction to serious games and their design and development while making students aware of the many career paths within this exciting growing domain. They can also be completed entirely remotely lending themselves nicely to online instruction to facilitate the COVID-19 shutdowns and the resulting move to e-learning.

Although several high-school teachers and several elementary school children were consulted during the development of the lesson plans, the lesson plans have only recently been made available, and therefore, there is a lack of any teacher or student feedback available regarding their use. Informally, several elementary school children found the lessons to be fun, interesting and informative.

There are currently no existing courses or lesson plans focusing on serious game design and development at the K-12 level, thus making this set of lesson plan novel and unique.

The aim of the study is to better understand how lesson study (LS) contributes to challenging teachers' views of mathematics teaching and learning.

This study is part of a wider ongoing project aiming at improving primary mathematics teaching in Malawi through professional development (PD) of teachers using a LS model. The units being analyzed are teachers' written reflections and lesson plans. The analytical approach is qualitative content analysis.

Initially, the participating Malawian primary teachers report traditional views of mathematics teaching and learning. After having participated in a LS cycle, they reported on the need to work on how to involve and create space for learners' participation in mathematic lessons and highlight the importance for learners to discover mathematics on their own.

This is a small-scale study due to LS being quite new in the Malawian context and the need to test before possible upscaling.

The paper includes a description on how LS might contribute to challenging Malawian teachers' views of mathematics teaching and learning; this can be valuable information for others who are attempting to use LS in a similar context.

This paper fulfills an identified need to learn more about how LS might contribute to challenging teachers' views of mathematics teaching and learning worldwide.

The purpose of this study was to examine the digital competence displayed by a primary school teacher who implemented an interdisciplinary cross-border lesson that was designed with the lesson study methodology and involved two countries: Brazil and Chile.

A qualitative methodology was adopted via the case study method through which the case of a sixth-grade Chilean teacher participating in the study was documented. The data were collected through a lesson plan, a videotape of the implemented lesson and a questionnaire. A professional digital competence framework for teachers provided an analytical perspective via data analysis.

The results show that the teacher displayed digital competence in a synchronous collaborative learning environment in which she had time to reflect on the educational value of technology and appropriate teaching methods involving information and communication technologies. Certain elements of the studied case contributed to this performance, namely the cross-border context, the classroom setting and the collaborative Lesson Study methodology.

The lesson study methodology facilitated the teacher's performance in the “Pedagogy and didactics” digital competence by enabling her to participate in planning and implementing a lesson that allowed all those who collaborated, including teachers and researchers, to reflect on teaching in a digital learning environment.

The cross-border context, which involved co-designing and implementing a lesson in two countries, allowed the teacher to display her “School in society” and “Ethics” competencies. This was achieved through connecting two classrooms with different languages and cultures digitally and synchronously, thereby providing students the opportunity to debate and participate in a global and local problem such as a country's responsibility for energy consumption.

Modern society requires the transformation of school practices, and new teaching approaches should include the provision of collaborative spaces that incorporate digital technologies. In this sense, this paper shows that cross-border lessons involving a synchronous learning environment offer a potential alternative, as digital teaching competence enables teachers to bring together different social and cultural groups virtually, thereby contributing to the reduction of social gaps and to the promotion of positive identity among less advantaged students.

The purpose of this paper is to comprehensively explore the current situation of lesson study (LS) implementation and practice among Mathematics Teacher Educators (MTEs) in Teacher Training Colleges (TTCs) across the country in Laos. Moreover, the study investigates MTEs’ professional learning through LS experience, the difficulties they encountered during practicing LS and their urgent needs to deepen their comprehension in the context of LS.

Data were collected through semi-structured interview with 45 MTEs from 7 TTCs in February/March 2018 (seven weeks). The study also collected 14 LS reports, 7 LS posters from the respondents and observed one cycle of LS practice in 2 TTCs. The data were systematically analyzed using inductive category formation through the procedure of transcribing and reading the transcription, thematic coding and categorizing and interpreting the meaning of thematic ideas (Mayring, 2015; Merriam, 2009). Licensed software MAXQDA 10 was used for this qualitative study.

The study argued based on LS practice in LS model 1 and model 2. MTEs that followed LS model 1 practiced LS in a superficial aspect and quantitatively relied upon the results from the checklists. They majorly satisfied the immediate measurement of teacher teaching’s behavior and student learning’s behavior. Frequently, time constraints, writing LS reports and collaboration were the great challenges. In contrast, MTEs that followed LS model 2 practiced LS in order to deepen understanding of students’ mathematical thinking. Although LS helped them by adjusting appropriate learning task, they encountered difficulty to innovate it effectively. LS also helped them in offering students’ autonomy to explore mathematical ideas, but they failed to understand the values of utilizing students’ mathematical ideas.

The findings from this study are beneficial for LS practice in the country and similar LS initiatives to find a measure to enhance the effectiveness of LS in schools and TTCs. The study suggested providing clear details of each step, the essential aspect and the core concept of LS to MTEs for successful transposition of LS to a non-Japanese context. Providing LS advisors who have had great experience in conducting LS not just high teaching or working experience only is highly recommended. This study has a limitation in observing LS practices from all seven TTCs.

Ministry of Education and Sports (MoES) recognizes the significance of implementing LS in TTCs to enhance the quality of teaching-learning, though the progress of LS in those TTCs has not yet been addressed. Current situation of LS revealed in this study is valuable for similar initiatives, MoES and Japan International Cooperation Agency to make an effort in order to move LS forward.