Integration of Plastic Waste Pyrolysis Technology in STEM-Chemistry Learning to Improve Students^ Environmental Knowledge and Attitude
Euis Nursaadah*1, Raidatul Fannyda2, Aceng Ruyani1

1Magister in Natural Science Education, Universitas Bengkulu
2MAN Insan Cendikia Bengkulu Tengah

Abstract

STEM (Science, Technology, Engineering, and Mathematics)-based learning generally utilizes complex real-life problems such as waste management, fuel needs, environmental pollution management and others as a learning context. This study integrates the plastic waste pyrolysis process as a learning context by applying knowledge and practices from various disciplines to STEM chemistry learning. Students^ environmental knowledge and attitudes were analyzed after using integrated hydrocarbon concept teaching materials for STEM-based plastic waste pyrolysis. The research method used was a quasi-experimental design with a two-group pre-test-post-test design. Both the control and experimental classes each consisted of 16 students at MAN Insan Cendikia Bengkulu. The learning process in the control class implemented STEM learning using learning media in the form of plastic waste pyrolysis modules and videos. The experimental class implemented STEM learning using modules, videos, and direct plastic waste pyrolysis practicums. The results showed that the average percentage of N-Gain environmental knowledge in the experimental class was 67.32 while the control class was 46.67. In addition, the environmental care attitude of students in the experimental class in the domain of environmental appreciation is 88, environmental attention is 80, environmental sensitivity is 88, and environmental problem solving motivation is 83, while the control class percentages for each indicator are 75, 72, 78, and 80. STEM-based learning that includes various media and practical methods has been proven to provide additional benefits, deepening students^ understanding, and increasing student involvement in environmental issues.

Keywords: pyrolysis, plastics, waste, STEM, chemistry

Topic: Chemistry