Tri Hita Karana-Oriented Ethnomathematics Learning Resources for Grade Vii Students in Buleleng, Bali-Indonesia: An Ethnographic Study

This study aims to describe the source of THK-oriented ethnomathematics learning for grade VII Elementary Education students in Buleleng Regency-Bali Indonesia. The type of research used is qualitative with an ethnographic approach. The subjects of the study were mathematics teachers who teach in grade VII. Data collection techniques used documentation, open questionnaires, and semi-structured interviews. Data analysis used inductive thematic. The results of the study are ,the sources of THK-oriented ethnomathematics learning that can be used in mathematics learning for grade VII students in Buleleng Regency are determining holy days, menyama braya, megoak-goakan games, Dewa Yadnya ceremonies, Bhuta Yadnya ceremonies, subak systems, traditional Balinese buildings, and tumpek ceremonies. The use of THK-oriented ethnomathematics as a learning source has the potential to increase student interest, as well as foster awareness that many activities or objects related to socio-cultural-religious issues contain mathematical ideas.