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All Journal Teorema: Teori dan Riset Matematika Media Pendidikan Matematika
Nasution, Habib Al Ghifari
Unknown Affiliation
Computer Science & IT Education Environmental Science Mathematics Social Sciences

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Pengembangan Bahan Ajar Mata Kuliah Geometri Transformasi Berbasis Budaya Sumatera Utara Siregar, Tanti Jumaisyaroh; Br Ginting, Siti Salamah; Nasution, Habib Al Ghifari
Teorema: Teori dan Riset Matematika Vol 9, No 2 (2024): September
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/teorema.v9i2.15644

Abstract

Penelitian ini bertujuan untuk menghasilkan bahan ajar mata kuliah geometri transformasi berbasis budaya Sumatera Utara yang valid, praktis dan efektif. Jenis penelitian yang digunakan adalah penelitian pengembangan dengan menggunakan model 4D. Teknik analisa data meliputi hasil validasi bahan ajar, analisis kepraktisan bahan ajar dan hasil post test hasil belajar. Hasil penelitian ini menunjukkan bahan ajar mata kuliah  geometri transformasi berbasis budaya Sumatera Utara ini dikatakan valid, praktis dan efektif. Berdasarkan hasil analisis data diperoleh nilai rata-rata validator baik dari ahli materi, ahli media dan ahli bahasa adalah 81,5 % berada pada kategori sangat valid. Hasil nilai rata-rata respon mahasiswa terhadap bahan ajar sebesar 78,94% yang memiliki kriteria praktis. Hasil tes hasil belajar mahasiswa menunjukkan persentase ketuntasan sebesar 80,77%.
Eksplorasi Etnomatematika pada Tari Tor-Tor Namora Pule di Deli Serdang Nasution, Habib Al Ghifari; Lubis, Mara Samin
Media Pendidikan Matematika Vol. 13 No. 1 (2025)
Publisher : Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i1.16245

Abstract

Mathematics is often considered foreign by students from everyday life. In this study, researchers explored the culture in the North Sumatra region, namely the culture of South Tapanuli. The culture is Tor-tor Namora Pule. This study aims to explore ethnomathematics in the Tor-Tor Namora Pule dance movement in Deli Serdang, which is related to flat geometry.The approach used in this research is an ethnographic approach, with qualitative research methods. Data obtained through interviews, the instrument in this study consisted of the main instrument, namely the researcher himself and auxiliary instruments in the form of interview guidelines. The data validity technique used is source triangulation. The results of the data analysis concluded that four main types of movements were identified in the Namora Pule dance, namely manyomba, mangido, manggolom, and manyomba which ended with the word horas. This study found ethnomathematical indicators related to the concept of flat geometry that are realized in these dance movements. The manyomba movement has the shape of a right triangle, an arbitrary triangle, and an obtuse triangle. The mangido movement shows a semicircle shape. Triangular and circular shapes are found in the manggolom movement. Finally, the manyomba/horas movement displays the shape of an isosceles triangle. This research indicates the integration of geometry concepts in the local cultural practice of Tor-Tor Namora Pule Dance, which has the potential to become a contextualized mathematics learning resource.
Co-Authors Mara Samin Lubis, Mara Samin Siregar, Tanti Jumaisyaroh Siti Salamah Br Ginting