Eksplorasi Etnomatematika Alat Musik Tradisional Pada Tarian Gong di Kecamatan Weliman

Abstract

This study explores the relationship between local culture and mathematical concepts through ethnomathematics. The research focuses on traditional musical instruments used in the gong dance in Weliman Subdistrict, Malaka Regency, East Nusa Tenggara. The aim is to identify and analyze mathematical elements contained in the gong, drum, rattles, and dance movements. A qualitative approach with an ethnographic design was applied, using interviews, passive participant observation, and documentation as data collection techniques. Data were analyzed through domain, taxonomic, and componential analysis, followed by ethnomathematical findings, with triangulation ensuring validity. The results show that the gong, drum, and rattles reflect geometric forms such as circles, cylinders, truncated cones, hemispheres, and tori. Rhythmic gong patterns illustrate arithmetic sequences, while the dance movements demonstrate concepts of lines, angles, and geometric order. The findings confirm that ethnomathematics is embedded in the cultural practices of the Weliman community and can be used as a contextual approach to mathematics education, while also supporting the preservation of local culture.