Analysis of Mathematical Thinking in the Geometry of Toronan Batik Motifs as a Source of Ethnomathematics for Elementary Schools

Abstract

Toronan Batik is one of the typical local cultures of Pamekasan that has the potential to contain mathematical concepts in the process of making it. This study aims to analyze the mathematical thinking process of batik in the concept of geometry in the Toronan Batik motif as an ethnomathematical source. This study employs a qualitative ethnographic approach. Data was obtained through observation, interviews, and documentation of batik makers at the MJ Batik House, Pamekasan Regency. The results of the study showed that the motifs of Lerres, Piring Pecah, Tong Centong, and Mata Keteran contain geometric concepts in the form of lines, triangles, circles, symmetry, repetition patterns, and translation. In addition, batik applies a mathematical thinking process in determining patterns, setting sizes, maintaining design balance, and arranging motif repetitions. Based on the results, it can be concluded that batik activities in Batik Toronan embodies mathematical processes that can be analyzed through an ethnomathematical approach and have the potential to be a source of contextual geometry learning in elementary schools.