Exploring Ethnomathematics in Batak Toba Carvings for Locally-based Mathematics Teaching Material

Ditasona, Candra (2023) Exploring Ethnomathematics in Batak Toba Carvings for Locally-based Mathematics Teaching Material. Journal of Educational Research and Evaluation, 7 (3). pp. 399-407. ISSN 2549-2675

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Official URL: https://ejournal.undiksha.ac.id/index.php/JERE/ind...

Abstract

Sebagai salah satu ornamen adat suku Batak Toba, “gorga” memiliki makna filosofis dan berfungsi untuk memperindah dekorasi rumah adat. Motif gorga memiliki ciri khas tersendiri, dengan pola yang tersusun rapat dan desain yang simetris. Hal ini menunjukkan adanya aspek matematis dalam pola ukiran gorga tersebut. Penelitian ini bertujuan untuk menganalisis kesimetrian yang terdapat pada motif gorga yang dapat dimanfaatkan sebagai bahan ajar matematika berbasis lokal. Kajian dilakukan dengan mengeksplorasi berbagai motif gorga dan menganalisis jenis simetrinya. Penelitian ini menggunakan pendekatan penelitian etnografi. Pengumpulan data dilakukan dengan mengamati bangunan yang berhiaskan motif gorga, mempelajari literatur, dan melakukan wawancara dengan pemahat gorga. Analisis data kualitatif dapat dimulai dengan reduksi data, penyajian data, penarikan kesimpulan dan verifikasi. Hasil penelitian mengungkapkan adanya tujuh jenis simetri yang diperoleh dari semua motif gorga. Jenis-jenis simetri ini meliputi simetri translasi, simetri luncuran refleksi, simetri vertikal, simetri rotasi 180°, simetri vertikal dan rotasi 180°, simetri horizontal, dan simetri vertikal dan horizontal. Kata Kunci : Simetri, Etnomatematika, Ukiran Tradisional, Gorga, Batak Toba. / As one of the traditional ornaments of the Batak Toba tribe, "gorga" carries philosophical meaning and serves to embellish the decoration of traditional houses. The gorga motif has its own distinctive characteristics, with closely arranged patterns and symmetrical designs. This indicates the presence of mathematical aspects within these carved gorga patterns. This research aims to analyze the symmetries embedded in the gorga motifs that can be utilized as locally-based mathematics teaching material. The study is conducted by exploring various gorga motifs and analyzing their types of symmetry. The research is employing an ethnographic research approach. Data is collected through observing buildings adorned with gorga motifs, studying literature, and conducting interviews with gorga carvers. Qualitative data analysis can be started with data reduction, data presentation, drawing conclusions and verification. The research findings reveal the existence of seven types of symmetry obtained from all gorga motifs. These symmetry types include translation symmetry, glide reflect symmetry, vertical symmetry, rotation 180° symmetry, vertical and rotation 180° symmetry, horizontal symmetry, and vertical and horizontal symmetry. Keywords: Symmetry, Ethnomathematics; Traditional Carvings, Gorga, Batak Toba

Item Type: Article
Subjects: EDUCATION
Depositing User: Mr Sahat Maruli Tua Sinaga
Date Deposited: 12 Feb 2024 07:47
Last Modified: 12 Feb 2024 07:47
URI: http://repository.uki.ac.id/id/eprint/13748

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