Ethnomodeling on Activities of Giriloyo Hand-Written Batik Craftsmen

Abstract

School mathematics is often considered formal and rigid, so it requires a culture-based learning approach, namely ethnomathematics. Many ethnomathematics studies in cultural communities have been carried out, but have not yet touched on pedagogical aspects, so an ethnomodeling approach is needed. One of the cultural communities that still survives in Yogyakarta is the Giriloyo Yogyakarta batik craftsman community. This research aims to explain the activities of the Giriloyo batik craftsman community from an ethnomathematics and ethnomodeling perspective. The method used in this research is qualitative research with a phenomenographic and ethnomethodological approach. The subjects of this research were 5 hand-written batik craftsmen in Giriloyo Yogyakarta. Data collection techniques include participant observation and interviews.  The analysis techniques in this research include domain, taxonomy and content analysis. Based on the research results, it was found that the activity of making batik contains mathematical activities which include measuring, calculating, playing, explaining, determining location, and designing. the concept of geometric transformation which includes rotation, reflection, translation and dilation is also found in the motif. This activity can be applied to mathematics learning at school which includes literacy, numeracy and collaboration activities with technology.