Ethnomathematics: Design of Sabuk Tradisional (Keru) Bajawa as A Learning Media For Elementary School

Abstract Teaching and learning can be successful and meaningful if it uses a design that is close to students, namely the cultural context .  This study aims to explore the mathematical content of the sabuk tradisional in the saboweki/traditional clothing of the Bajawa ethnic community, East Nusa Tenggara Province. The research method used descriptive qualitative with an ethnographic approach. Research object was sabuk tradisional Bajawa (keru). The data was collected through observation and documentation, while the source triangulation technique used to obtain the validity of the data. Data analysis techniques started from exposure, reduction and conclusion. The results showed that sabuk tradisional (keru) bajawa contains mathematical concepts including number patterns, multiplication as repeated addition, geometry and measurement and reflection. The findings of this study could improve the quality of learning in elementary schools through the sabuk tradisional (keru) bajawa as a mathematics learning media based culturally responsive.