Abstract Centered on the interdisciplinary practical activity theme of “investigation of scrap metal in daily life and its recycling”, this paper designed three phases comprising seven tasks: understanding sources of scrap metal, tracking disposal pathways of metallic waste, and recognizing the value of recycled materials. Students conducted multifaceted investigations: including literature reviews, online research, questionnaires, field studies, and expert interviews: integrating multidisciplinary knowledge into real-world contexts to deeply explore circular economy principles exemplified by metal recycling. Throughout the implementation process, key reflections emerged: before class, students dived into hands-on investigations driven by real-world situations, which sparked their independent learning. Then during class, they discussed and shared ideas, using chains of questions to help organize their knowledge. Finally, after class, they put plans into action through projects, building a stronger sense of social responsibility along the way.
LIN Dan. Project Teaching of Interdisciplinary Practical Activity in Junior High School Chemistry: Investigation on Scrap Metal in Daily Life and Its Recycling[J]. Chinese Journal of Chemical Education, 2026, 47(5): 30-38.
