One way to preserve culture in education is through ethnoscience-based learning, especially in chemical materials linked to various fields of science in life, including social and cultural. Ethnoscience is a process of reconstructing indigenous science knowledge with scientific science. This research aims to explore trends in ethnoscience-based…

In the Society 5.0 era, a significant challenge for education is integrating science and technology to strengthen human resources by enhancing students' science competencies. This study aims to develop a PBL e-book that integrates local environmental issues in Bojonegoro, East Java, and to describe its design, validity, and effectiveness in…