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All Journal Jurnal Insan Pendidikan dan Sosial Humaniora Jurnal Ilmiah Matematika Realistik
Yuliana Tamu Ina Nuhamara
Universitas Kristen Wira Wacana Sumba
Humanities Education Mathematics

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Penerapan Alat Peraga Mistar Hitung Bilangan Bulat Untuk Meningkatkan Kemampuan Berhitung Siswa Sekolah Luar Biasa Negeri Kanatang Elsy Senides Hana Taunu; Yuliana Tamu Ina Nuhamara
Jurnal Insan Pendidikan dan Sosial Humaniora Vol. 1 No. 3 (2023): Agustus : Jurnal Insan Pendidikan dan Sosial Humaniora
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jipsoshum-widyakarya.v1i3.790

Abstract

The purpose of this study was to find out how the use of slide rule media can improve students' numeracy skills in integer arithmetic operations for Kanatang State Special School students. This Classroom Action Research (PTK) was conducted at the Kanatang Foreign School in the Odd Semester of the 2022/2023 academic year. The subjects in this study were the students of the Kanatang State Special School, which consisted of 10 students, namely 5 students and 5 female students. The research object is the Ruler Count media in learning addition and subtraction of integers in Mathematics. The procedures/steps of this Classroom Action Research consist of cycles. Implementation of this Classroom Action Research each cycle includes: planning, implementation of action, observation, and reflection. The instruments used in this study were pre-test questions, post-test questions for each cycle, and interview guidelines. The questions made consist of 10 numbers in the form of an essay test. The data collection technique used was the provision of tests, interviews, observations and field notes. The instrument used is a test in the form of a description. Data collection was carried out in three stages, namely: (1) reducing data, (2) presenting data, and (3) drawing conclusions. The results showed that student activities and teacher activities in learning activities in cycle I reached the Good category and cycle II was very good. The results of the analysis of the final test cycle I obtained the percentage of average scores with student absorption reaching 60% and learning completeness reaching a percentage 70% of 10 students. Whereas in the analysis of the final test cycle II there was an increase according to the results of observations of student and teacher activities, the percentage of the average value of student absorption reached 90% with classical learning completeness reaching the target percentage of 100% of 10 students. This has shown that there is an increase in the learning outcomes of Kanatang State Special School students in the material of addition and subtraction of integers by using the integer slide rule.
KAJIAN POLA GEOMETRI PADA ALAT MUSIK GONG TRADISIONAL SUMBA TIMUR DALAM PERSPEKTIF ETNOMATEMATIKA Febrianto Mbilijawa; Evianto Lu Hamani; Erwin Danga Ngara; David Meta Kamala; Yuliana Tamu Ina Nuhamara
Jurnal Ilmiah Matematika Realistik Vol. 6 No. 1 (2025): JURNAL ILMIAH MATEMATIKA REALISTIK
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/ji-mr.v6i1.341

Abstract

Tujuan penelitian ini adalah untuk mengkaji pola-pola geometri yang terdapat pada alat musik gong tradisional Sumba Timur dan menafsirkannya melalui perspektif Etnomatematika. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian etnografi. Selain sebagai alat musik ritual, alat musik gong juga mempresentasikan nilai-nilai estetika, simbolik, dan matematis. Melalui pendekatan kualitatif dengan metode etnografi, data dikumpulkan melalui observasi langsung, dokumentasi, serta wawancara dengan pengrajin gong didaerah setempat. Hasil kajian menunjukkan dalam alat musik gong terdapat unsur -unsur geometri seperti lingkaran dan setengah bola. Pola-pola tersebut merefleksikan pemahaman lokal terhadap konsep ruang, proporsi, dan keteraturan, yang secara implisit mengandung prinsip-prinsip matematika tradisional. Temuan ini menguatkan bahwa etnomatematika dapat menjadi jembatan dalam memahami keterkaitan antara budaya lokal dan ilmu matematika, serta sebagai upaya pelestarian nilai-nilai budaya melalui pendekatan ilmiah.
Co-Authors Anggriati Ledu Ngaba Bima, Stevvileny Angu David Meta Kamala Elsy Senides Hana Taunu Erwin Danga Ngara Eryani Hamapinda Evianto Lu Hamani Febrianto Mbilijawa Iona Lisa Ndakularak Irna Natalis Sanit Marthinus Luta Lapu Mega Retno Wulandari Nggaba, Mayun Erawati Randjawali, Erwin Yuliana S. Eko