OPPA Theory Encourages Learners to Form "Objects of Learning":The Case of Class Improvement Conducted “Messing About” Approach to Science
(World Association of Lesson Studies (WALS2021) 2021)
Problem in Japanese Lesson Study and Overcoming it: OPPA in elementary school
(World Association of Lesson Studies (WALS2020) Online 2020)
Student self-assessment for learning improvement: OPPA in lower secondary school science class
(World Association of Lesson Studies (WALS2020) 2020)
Effect of Formative Assessment for Learning and Teaching in Lesson Study: OPPA in elementary school
(2019)