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All Journal AFORE: Jurnal Pendidikan Matematika
Ruth Mayasari Simanjuntak
Universitas HKBP Nomensen, Indonesia
Mathematics

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EKSPLORASI RUMAH ADAT BATAK TOBA TERHADAP KONSEP BANGUN RUANG DI KELAS XII SMA NEGERI 1 GIRSANG SIPANGAN BOLON Purnama Raya Anjelina Situmorang; Hardi Tambunan; Ruth Mayasari Simanjuntak
Afore : Jurnal Pendidikan Matematika Vol 4 No 1 (2025): AFORE : Jurnal Pendidikan Matematika
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/afore.v4i1.3119

Abstract

This study aims to explore the integration of the Batak Toba traditional house as a contextual medium in teaching three-dimensional geometric concepts to twelfth-grade students at SMA Negeri 1 Girsang Sipangan Bolon. A qualitative approach was employed to observe how geometric shapes within the architectural structure of the traditional house—such as prisms, pyramids, and rectangular blocks—can be identified and utilized to enhance students’ understanding of spatial geometry. The results indicate that this culturally based learning approach significantly improves students’ conceptual comprehension, creativity, and learning motivation. Students find it easier to associate geometric forms with real-world structures, positively impacting their academic performance. Moreover, this method reinforces local cultural values and promotes active student engagement in the learning process. Teachers play a crucial role in facilitating the connection between mathematical concepts and cultural context. The study recommends further development of local-culture-based instructional media and teacher training to integrate indigenous knowledge into classroom learning. The integration of cultural elements in mathematics education has proven effective in creating meaningful learning experiences and fostering students' cultural identity.
EKSPLORASI ORNAMEN PENGERET RET TERHADAP KONSEP BANGUN DATAR Ribka Zelin Margaretha Sitepu; Hardi Tambunan; Ruth Mayasari Simanjuntak
Afore : Jurnal Pendidikan Matematika Vol 4 No 1 (2025): AFORE : Jurnal Pendidikan Matematika
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/afore.v4i1.3197

Abstract

This study aims to explore the relationship between the traditional pengeret-ret ornament and the concept of plane figures from an ethnomathematical perspective. The pengeret-ret ornament, a distinctive motif from the cultural heritage of the Indonesian archipelago, was chosen as the object of study due to its rich visual patterns filled with geometric shapes. This research employs a literature study method with a qualitative-descriptive approach. Data sources include scholarly journals, ethnographic articles, and visual references of relevant traditional motifs. The findings indicate that the pengeret-ret ornament contains elements of plane figures such as triangles, squares, parallelograms, rhombuses, and circles. These patterns are arranged symmetrically and repetitively, reflecting geometric concepts such as translation, reflection, and rotation. In addition to their aesthetic and symbolic value, these ornaments also hold great potential as contextual, culturally based media for teaching geometry. Therefore, this research contributes to the development of ethnomathematics teaching materials as well as the preservation of culture through innovative approaches in mathematics education.
EKSPLORASI FARITIA TERHADAP LINGKARAN Karyenti Merintan Sani Lahagu; Hardi Tambunan; Ruth Mayasari Simanjuntak
Afore : Jurnal Pendidikan Matematika Vol 4 No 1 (2025): AFORE : Jurnal Pendidikan Matematika
Publisher : Universitas Nias Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57094/afore.v4i1.3202

Abstract

This study aims to explore the relationship between the traditional musical instrument Faritia from Nias and the concept of the circle in terms of its visual form, rhythmic structure, and social symbolic meaning. Faritia is a metal idiophone shaped like a circle, commonly used in traditional ceremonies such as Mamozi Aramba. The research approach is a literature review, collecting and analyzing various sources on organology theory, Euclidean rhythm, and ethnomusicological studies. The findings indicate that the physical form of Faritia reflects principles of acoustic resonance and symbolic values commonly found in traditional cultures: balance, wholeness, and continuity. The rhythmic patterns produced by Faritia show a tendency towards cyclical beat distribution similar to the concept of Euclidean rhythms. Moreover, in social practice, Faritia is played within circular formations that reinforce collective meaning and community unity. Thus, Faritia functions not only as a traditional musical instrument but also as a multidimensional cultural symbol representing the circle in the physical, musical, and social structures of Nias society.
Co-Authors Hardi Tambunan Karyenti Merintan Sani Lahagu Purnama Raya Anjelina Situmorang Ribka Zelin Margaretha Sitepu