“…In this study, a didactical design research type was used along with a lesson study at every stage of the research process. Didactical design research was used because it was able to present learning designs that were tailored to the factors that caused students to experience learning obstacles (Prabowo, Suryadi, Dasari, Juandi, & Junaedi, 2022;Sukarma, Isnawan, & Alsulami, 2024;Suryadi, 2019b). Meanwhile, lesson study was used because it could make learning more practical and effective (Bintoro, Zaenuri, & Wardono, 2021;Haryoto & Narimo, 2013).…”