The Maze of Lesson Study Adaptations: Toward a Consensus Through the Delphi Approach

• In Event: AERA Roundtable Session Sunday 11:40 am Four Seasons Ballroom 2-3
  In Roundtable Session: Applications and Lessons Learned in Lesson Study (Table 13)

Abstract

The professional development approach lesson study (LS) has gained global attention and countless adaptations have been developed (Yoshida et al., 2021). Differences in conceptual and practical approaches to LS however tend to remain implicit as studies by Larssen et al. (2018) and Kager et al. (2024) demonstrate. This is problematic, as a research field without consensus on essential questions runs the risk of accumulating unconnected facts (Praetorius & Charalambous, 2023). This two-round Delphi study (N = 32), the first of its kind in the field of LS research, aims to build consensus on the assumptions underlying LS, while facilitating systematic exchange among international researchers. Findings show considerable consensus on some topics, but also differences on other issues and between nationalities.

Authors

• Julian Bucher, University of Potsdam

• Klara Kager, University of Potsdam

• Ryosuke Okamura, Kyoto University

• Miriam Vock, University of Potsdam