Geometry And Algebra In Traditional Sabu Ei Ledo Ikat Weaving Motifs
DOI:
https://doi.org/10.30605/proximal.v9i2.8959Keywords:
Etnomatematika, Tenun Ei Ledo, Grup Simetri, Logika Boolean, Pemodelan Matematis, Fungsi Periodik, Matematika IndigenousAbstract
Penelitian ini mengkaji struktur geometri dan aljabar yang terkandung dalam kain tenun tradisional Ei Ledo milik klan Hubi Iki di Pulau Sabu, Nusa Tenggara Timur, melalui perspektif Ethnomathematics. Kajian mengenai tenun tradisional selama ini umumnya lebih berfokus pada aspek simbolik budaya dan nilai estetika, sementara analisis terhadap rasionalitas matematis dan struktur komputasional yang mendasari praktik menenun masih relatif terbatas. Penelitian ini menggunakan pendekatan etnografi kualitatif yang dipadukan dengan analisis geometri, pemodelan aljabar, dan interpretasi grup simetri untuk mengidentifikasi pola-pola matematis pada motif dan proses produksi tenun. Hasil penelitian menunjukkan adanya penerapan algoritma tradisional “Mane” dengan rasio presisi satu kaki terhadap empat urat benang dengan total 144 urat benang, serta penggunaan logika Boolean dalam proses pewarnaan. Secara matematis, motif zig-zag dimodelkan sebagai fungsi periodik linear yang menyerupai gelombang segitiga, sedangkan motif lengkung “Hebe” menunjukkan karakteristik kurva polinomial berderajat tinggi. Selain itu, analisis struktur aljabar memperlihatkan bahwa motif mikro mengikuti grup simetri C2v yang menghasilkan efisiensi kognitif penenun sebesar sekitar 75% dalam proses produksi. Temuan ini membuktikan adanya penalaran matematis tingkat tinggi, komputasi mental iteratif, dan optimasi spasial dalam praktik tenun tradisional masyarakat Sabu meskipun tanpa penggunaan alat ukur modern. Penelitian ini berkontribusi terhadap pengembangan teori etnomatematika, pembelajaran matematika berbasis budaya, serta pendekatan interdisipliner yang menghubungkan pengetahuan lokal dengan pemodelan matematika kontemporer.
References
Ashari, N. W., & Suradi, S. (2025). Tinjauan Sistematis Pengembangan Smart Digital Learning Berbasis Masalah PISA dan Kearifan Lokal dalam Pembelajaran Matematika SMP. Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences, 4(3), 474-480.
Ely Goro Leba. (2024Makna Motif Sarung Sabu dan Sejarah Ada Hubi Ae dan Hubi Iki di Kalangan Wanita Suku Sbu Raijua. https://www.kompasiana.com/pegiatliterasi9661/65f7cc111470936e6719b212/makna-motif-sarung-sabu-dan-sejarah-ada-hubi-ae-dan-hubi-iki-di-kalangan-wanita-suku-sbu-raijua
Armstrong, M. A. (1988). Groups and symmetry. Springer-Verlag.
D’Ambrosio, U. (1985). Ethnomathematics and its place in the history and pedagogy of mathematics. For the Learning of Mathematics, 5(1), 44–48.
Gallian, J. A. (2016). Contemporary abstract algebra (9th ed.). Cengage Learning.
Gerdes, P. (1999). Geometry from Africa: Mathematical and educational explorations. Mathematical Association of America.
Gittinger, M. (1990). Splendid symbols: Textiles and tradition in Indonesia. The Textile Museum.
Kreyszig, E. (2011). Advanced engineering mathematics (10th ed.). Wiley.
Maxwell, R. (1990). Textiles of Southeast Asia: Tradition, trade and transformation. Periplus Editions.
Museum Negeri Propinsi NTT. (1995). Koleksi tenun ikat Museum Negeri Propinsi Nusa Tenggara Timur. Repositori Kementerian Pendidikan dan Kebudayaan.
Stewart, J. (2015). Calculus: Early transcendentals (8th ed.). Cengage Learning.
Talo, D. D. (2004). Pergeseran kebudayaan orang Sawu pada fungsi kain tenun ikat di Desa Limaggu-Kupang NTT (Master’s thesis). Universitas Indonesia
Washburn, D. K., & Crowe, D. W. (1988). Symmetries of culture: Theory and practice of plane pattern analysis. University of Washington Press.
Weyl, H. (1952). Symmetry. Princeton University Press.
Zill, D. G. (2018). Advanced engineering mathematics (7th ed.). Jones & Bartlett Learning.
Downloads
Published
Issue
Section
License
Copyright (c) 2026 Ja'faruddin Ja'faruddin, Alimuddin Tampa, St. Hasna Nurfitriani, Sry Lobo
This work is licensed under a Creative Commons Attribution 4.0 International License.
In submitting the manuscript to the journal, the authors certify that:
- They are authorized by their co-authors to enter into these arrangements.
- The work described has not been formally published before, except in the form of an abstract or as part of a published lecture, review, thesis, or overlay journal.
- That it is not under consideration for publication elsewhere,
- That its publication has been approved by all the author(s) and by the responsible authorities – tacitly or explicitly – of the institutes where the work has been carried out.
- They secure the right to reproduce any material that has already been published or copyrighted elsewhere.
- They agree to the following license and copyright agreement.
License and Copyright Agreement
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under Creative Commons Attribution License (CC BY 4.0) that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.
