Ethnomathematics: Concept of Transformation Geometry in Sasambo Batik Motifs Bale Lumbung Sasak

Heri Sopian Hadi (UIN Maulana Malik Ibrahim Malang)
M Gunawan Supiarmo (UIN Maulana Malik Ibrahim Malang)
M Qomari Hidayat (UIN Maulana Malik Ibrahim Malang)
Lalu Ajimuliardi A (UIN Maulana Malik Ibrahim Malang)

Jurnal Pendidikan Matematika Raflesia
Vol 7, No 1 (2022)

The research method used is qualitative research with an ethnographic approach. This purpose aims to explore the existence of mathematical concepts, especially the transformation geometry material in Sasambo Sasak batik. Then describe the transformation concepts contained in the batik. Researchers dig up information through observation, literature, and interviews with batik-related craftsmen to obtain accurate information. Respondents in this study were determined by the purposive sampling method. The selected respondents are Sasambo batik craftsmen. The results showed that there are geometric transformation concepts in the Sasambo Bale Lumbung Sasak batik motif, including translation, reflection, dilation, and rotation.