Application of Lesson Study-based Problem Based Learning to Improve Mutual Cooperation and Learning Outcomes

The COVID-19 pandemic has hit various zones in Indonesia, including the learning zone, which has also had a big impact. Where the impact of online learning can cause students to become passive, less creative and unproductive, the accumulation of information/concepts for students is less useful. Class X for the 2022/2023 academic year is currently students affected by online learning 2 years earlier and the implementation of an independent curriculum, so that class X requires concrete learning and constructivism. The Problem Based Learning (PBL) learning model is a learning that provides students with knowledge and experience to work in constructing knowledge. Through Lesson Study (LS) it is hoped that there will be an increase in learning biology in class X. This type of research uses classroom based action research. The research subjects were 35 students in class X.4 of SMA Negeri 3 Jember for the 2022/2023 academic year. The results of the study showed an increase in mutual cooperation and learning outcomes. The increase in the mutual cooperation is evidenced by the mean value of 72 (C1) and 92 (C2). While the results of learning biology proved the average value of 82 (C1) and 88 (C2). This can be an alternative for educators to apply concrete learning and constructivism to cognitive learners in the transition to the Covid-19 pandemic to improve mutual cooperation and learning outcomes.