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Proceedings of the Proceedings of the 7th Mathematics, Science, and Computer Science Education International Seminar, MSCEIS 2019, 12 October 2019, Bandung, West Java, Indonesia
A study was conducted to analyze the didactic transposition process on the concept of central and circumferential angles in junior high school. This research is a hermeneutic phenomenology research. Geometry textbooks, the 2013 curriculum and junior high school mathematics textbooks are the data sources in this study. Descriptive analysis is used to analyze the didactic transposition process. The results of this study indicate that there is no structural change in the concept of the centraldoi:10.4108/eai.12-10-2019.2296425 fatcat:mbhuniuwa5gldocwj3xvbw4ezq