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Troso woven fabric is a kind of weaving fabric produced in a village in Indonesia called Troso. The aim of this study was to identify the detailed process of manufacture of Troso woven fabric and reconstruct it related to several scientific concepts. Research method started by observe several local cultures in this city, and found that students can better understand the science concept and increase their environmental awareness when it is exemplified by circumstances in their surrounding environment. The results of Troso woven fabric reconstruction can be used as a contextual alternative learning resource and increase students' awareness in protecting their environment. This study uses a qualitative research approach through ethnoscience and ethnoecology. The two aspects of the study were carried out through the process of reconstructing indigenous science into scientific science. The research stages include pre-research preparation, primary data collection through observation, in-depth interviews, discussion, and direct observations. The next step was collecting data from the study of cultural documents on the manufacturing of Troso woven fabric as well as verifying, reconstructing, formulating, and conceptualising into science. Various scientific studies relate to the measurement process, compounds and mixtures, heat, and energy transfer associated with ethnoscience. Ethnoecologically, the community does not know yet about the environmental impact that has occurred, resulting in environmental damage even though the community has not directly observed it. By associating science material with the local culture, it is hoped that the understanding of science will become more meaningful and contextual. [ABSTRACT FROM AUTHOR]

This study shows how students can learn about green and sustainable chemistry by using the knowledge perspective of a local indigenous culture as a starting point. This learning approach encourages students to learn chemistry by connecting culture with learning about green chemistry. The cultural context selects the use of a phytochemical agent (d-limonene) from a local plant (Citrus grandis), which is a traditional botanical pesticide that is used by the Baduy tribe in Western Java, Indonesia. A simple low-cost extraction method that uses a kitchen microwave was chosen to introduce modern green extraction methods to learners. This facilitates the students' ability to evaluate the "greenness" of this method, as compared to more conventional extraction methods, such as Soxhlet and steam distillation. The learning activities were conducted during the COVID-19 pandemic with the help of an online learning management system (SPADA) and Google Meet. The students' feedback and selected results are discussed below. [ABSTRACT FROM AUTHOR]