Enhancing curriculum management through lesson study: Insights from the SECI knowledge creation model

21st-century curriculum development is crucial to prepare students for a rapidly changing world. The OECD and UNESCO have published several papers recommending strategies for curriculum development; however, implementing a 21st-century curriculum faces challenges in teacher professional development and curriculum design due to limited time and resources. This paper reports a case study about a school implementing a lesson study to address the challenges of implementing the 21st-century curriculum. The study was guided by the SECI knowledge creation model, which served as a framework for the development and execution of lesson study activities. The study used a qualitative research approach, employing interviews and observations to collect data. Participants included the school's teachers and administrators who engaged in lesson study over two years. Results of the study revealed that using lesson study and the SECI model positively impacted the school's ability to implement the 21st-century curriculum. Teachers reported increased collaboration and shared understanding of the curriculum's objectives, leading to more effective lesson planning and improved student outcomes. Additionally, the SECI model facilitated the creation and sharing of new knowledge, leading to greater innovation and creativity in the classroom. The study's conclusion suggests that Lesson Study and the SECI model can effectively address the challenges of implementing the 21st-century curriculum. By fostering collaboration, shared understanding, and knowledge creation, lesson study can facilitate the development of innovative and effective teaching practices that support student success in a rapidly changing world. The study recommends that schools adopt lesson study and the SECI model to implement the 21st-century curriculum. Copyright © 2023 Global Vision Press.