Eksplorasi Etnomatematika pada Motif Batik Sarolangun dalam Pembelajaran Geometri

Abstract

Abstrak

Pembelajaran matematika berbasis budaya lokal menghubungkan konsep matematis dengan pengalaman sehari-hari peserta didik. Penelitian ini menelusuri unsur etnomatematika pada motif Batik Sarolangun dan keterkaitannya dengan konsep geometri untuk pembelajaran sekolah. Pendekatan kualitatif dengan desain etnografi digunakan, dengan data dikumpulkan melalui observasi partisipatif, wawancara mendalam, dan dokumentasi di dua sentra Batik Sarolangun. Tiga pengrajin senior dipilih secara purposif sebagai informan. Analisis data mengikuti model Spradley (domain, taksonomi, komponen, tema budaya), sementara identifikasi konsep geometri dilakukan melalui analisis visual bentuk, pola pengulangan, simetri, dan transformasi motif. Hasil menunjukkan delapan motif utama memuat bangun datar (lingkaran, elips, segitiga, trapesium, belah ketupat, setengah lingkaran, persegi panjang) serta transformasi geometri (translasi, refleksi, rotasi, dilatasi). Penelitian ini menegaskan Batik Sarolangun sebagai sumber belajar geometri berbasis budaya lokal dan menyediakan dasar empiris untuk pengembangan bahan ajar dan strategi pembelajaran yang kontekstual di SD dan SMP.

Kata kunci: Etnomatematika, Batik Sarolangun, Geometri, Transformasi Geometri, Pembelajaran Matematika.

Abstract

Culture-rooted mathematics instruction offers a contextual route to bridging mathematical ideas with learners' lived realities. The present study seeks to investigate ethnomathematical features embedded in Sarolangun Batik motifs and to map the geometric concepts contained therein onto school mathematics content. A qualitative approach with an ethnographic design was adopted. Data were gathered through participatory observation, in-depth interviews, and documentation at two Sarolangun Batik production centres in Sarolangun Regency, Jambi Province. Three senior batik artisans were selected purposively, each with at least ten years of crafting experience and full mastery of the regional motif repertoire. Spradley's analytical stages domain, taxonomic, componential, and cultural theme analysis—guided the data interpretation. Geometric concepts were identified through systematic visual analysis of shape, repetition, symmetry, and transformation patterns. The findings reveal that eight principal motifs of Sarolangun Batik encode plane-geometry concepts (circles, ellipses, triangles, trapezoids, rhombi, semicircles, rectangles) and transformation-geometry concepts (translation, reflection, rotation, and dilation). These results suggest that Sarolangun Batik holds considerable promise as an authentic, contextual ethnomathematical resource for teaching plane figures, symmetry, and geometric transformations at the elementary and lower-secondary levels.

Keywords: Ethnomathematics, Sarolangun Batik, Geometry, Geometric Transformation, Mathematics Learning.