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Discovering Ethnomathematics in Sundanese Gamelan: Explore Mathematics Aspect in Gamelan Supriyadi, Edi; Turmudi, Turmudi; Dahlan, Jarnawi Afgani; Juandi, Dadang; Sugiarni, Rani
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 3 (2024): July
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i3.21768

Abstract

Ethnomathematics is important in recent decades, specifically in the production of gamelan instruments. Therefore, this research aimed to examine the intricate relationship between mathematics and cultural craftsmanship in Sundanese gamelan instruments made at Gong Factory in Bogor, West Java. Ethnographic methods were used to observe and describe the practices of gamelan craftsmen and the data collection process comprised carefully selected artists. These individuals actively acquire data by reviewing relevant material, observing, analyzing, and interviewing. Miles and Huberman's framework for data analysis included data reduction, presentation, inference, and verification. The procedures understood the delicate relationship between mathematics and culture in the investigated setting. The results showed that Gong Factory in Bogor preserved and promoted a unique musical heritage. Furthermore, the instruments were known for exceptional sound quality, serving as cultural relics and didactic tools, as well as teaching visitors about the manufacturing process. The factory preserved culture through the manufacture of gamelan instruments including gong, bonang, and saron. In this context, the craftsmanship used mathematical principles, specifically precise proportions and ratios. The instruments' visual and auditory qualities depended on geometry. The results significantly impacted mathematics education by enhancing cross-cultural connections, improving proportional reasoning and mathematical comprehension, and recognizing the wider relevance of principles. Culture, mathematics, and education were connected, showing that conserving Indonesian musical tradition benefited local and global populations.
Development of Digital Comics Based on Local Wisdom to Improve Students' Mathematical Literacy Skills Sari, Indah Puspita; Supriyadi, Edi; Hidayat, Wahyu
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 9, No 4 (2025): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v9i4.32635

Abstract

This study aims to develop a digital comic based on local wisdom to enhance the mathematical literacy skills of junior high school students. The research employed a Research and Development (R&D) approach using the ADDIE model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. Data collection techniques included both test and non-test instruments. The test instrument comprised a mathematical literacy assessment designed to measure students’ mathematical literacy skills, while the non-test instruments included observation sheets, interview guidelines, student response questionnaires toward the digital comic, and validation sheets to assess the practicality and validity of the developed product. The validity and practicality data were analyzed using percentage techniques, while the effectiveness of the product was evaluated using the N-gain score. The findings indicate that the digital comic based on local wisdom achieved content and graphic component validity scores of 75.67% and 76.33%, respectively, categorized as “valid.” Meanwhile, the presentation and language components received validity scores of 66.67% and 68.33%, categorized as “moderately valid.” In terms of ease of use, visual appeal, and perceived usefulness, the instructional material was deemed “highly practical.” Test results revealed that students’ scores across all mathematical literacy indicators fell within the moderate category. Based on these findings, it can be concluded that the developed digital comic grounded in local wisdom is valid, practical, and effective for use in classroom instruction to enhance students’ mathematical literacy. From a practical standpoint, this comic offers an engaging alternative for contextual learning media. Academically, the results underscore the importance of integrating local culture and visual media in the development of innovative instructional materials.
LIBRARY RESEARCH & LITERATURE REVIEW: EFISIENSI IMPLEMENTASI METODE SYSTEMATIC LAYOUT PLANNING (SLP) DALAM MENGURANGI PROSES PERPINDAHAN BAHAN PADA ALIRAN PROSES Wahyudin, Ira Rahmawati; Supriyadi, Edi; Jatnika, Rohman Agus
SISTEMIK (Jurnal Nasional Ilmu Teknik) Vol 12 No 1 (2024): SISTEMIK : Jurnal Ilmiah Nasional Bidang Ilmu Teknik
Publisher : Universitas Teknologi Bandung

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Abstract

Tata letak fasilitas merupakan cara untuk mengatur fasilitas produksi perusahaan dengan menempatkan fasilitas secara efektif dan efisien guna mengurangi pergerakan yang ada. Systematic Layout Planning (SLP) merupakan salah satu metode tata letak yang menggunakkan pendekatan sistematis dalam menghasilkan suatu tata letak guna meminimalkan jarak dan memaksimalkan alur kegiatan perpindahan bahan. Metode Systematic Layout Planning ini ditekankan dalam memecahkan permasalahan yang berhubungan dengan meminimalkan jarak pemindahan dan meminimasi ongkos material handling (OMH) yang dihasilkan. Tentunya, dalam proses perancangan tata letak ini, minimasi jarak pemindahan dan nilai ongkos material handling merupakan suatu tolak ukur dalam mengukur keberhasilan suatu tata letak. Berlandaskan hal tersebut, penulis memiliki keterkaitan untuk membandingkan hasil penelitian tata letak dalam mengurangi pemindahan bahan aliran proses. Dimana tujuan dalam penelitian ini adalah untuk menganalisis efesiensi layout usulan yang dihasilkan dari implemetasi metode Systematic Layout Planning dalam proses pemindahan bahan. Metode penelitian yang digunakan ialah metode library research yang mengumpulkan data pustaka dan literatur review yang digunakan untuk mengevaluasi suatu penelitian. Proses sintesis data dilakukan dengan membandingkan 4 literatur ilmiah yang memenuhi kriteria penelitian dengan sumber dari connected paper dan google scholar. Proses pengolahan data dilakukan dalam bentuk rekapitulasi dari 4 jurnal ilmiah yang telah ditentukan. Metode Systematic Layout Planning berpengaruh cukup signifikan dalam mengurangi waktu proses perpindahan bahan pada setiap aliran proses, dimana dalam setiap jurnal memiliki tingkat efisiensi yang berbeda – beda tergantung pada kondisi dan juga kebutuhan setiap tata letak. Dengan hasil efisiensi pemindahan bahan pada referensi jurnal 1 sebesar 68,4%, referensi jurnal 2 sebesar 73,04%, referensi jurnal 3 sebesar 48,9% dan referensi jurnal 4 sebesar 62,7%. Dari hasil perhitungan efisiensi diatas dapat disimpulkan bahwa metode Systematic Layout Planning berpengaruh cukup signifikan dalam mengurangi waktu proses perpindahan bahan pada setiap aliran proses. Semakin efisien jarak perpindahan suatu material maka waktu proses perpindahannya pun akan semakin cepat.  Sehingga, dapat disimpulkan bahwa metode Systematic Layout Planning (SLP) membuat proses perpindahan bahan lebih efisien dari sebelumnya.
IDENTIFIKASI FAKTOR YANG MEMPENGARUHI KUALITAS PRODUK DAN PERANCANGAN PERBAIKAN KUALITAS PRODUK MENGGUNAKAN METODE TAGUCHI: SYSTEMATIC LITERATURE REVIEW Intan, Suci Nur; Supriyadi, Edi
SISTEMIK (Jurnal Nasional Ilmu Teknik) Vol 12 No 1 (2024): SISTEMIK : Jurnal Ilmiah Nasional Bidang Ilmu Teknik
Publisher : Universitas Teknologi Bandung

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Abstract

Dalam sistem produksi, produktivitas dan kualitas produk adalah kunci keberhasilan. Kedua hal tersebut merupakan kriteria penilaian perusahaan yang sangat penting. Salah satu cara yang dapat dilakukan untuk mempertahankan kualitas produk adalah dengan menetapkan standar mutu dan kualitas. Dalam menetapkan standar mutu dan kualitas, produsen harus menentukan faktor mana yang mempengaruhi kualitas produk dan menetapkan standar kombinasi faktor terbaik. Salah satu metode yang dapat digunakan untuk merancang perbaikan kualitas dengan menetapkan parameter kombinasi faktor berpengaruh adalah metode Taguchi. Metode Taguchi merupakan metode pengendalian kualitas offline, yaitu metode pengendalian kualitas yang bertujuan untuk fokus pada desain produk, meningkatkan kualitas produk dan proses, serta setidaknya mengurangi biaya dan sumber daya. Tujuan dari penelitian ini adalah untuk mengidentifikasi faktor-faktor yang mempengaruhi kualitas produk dan merancang perbaikan kualitas produk berdasarkan faktor-faktor yang mempengaruhinya dengan menggunakan metode Taguchi. Data yang digunakan dalam penelitian ini merupakan data sekunder, yakni data yang diperoleh dari penelitian terdahulu, bukan melalui observasi atau pengamatan secara langsung. Sumber data sekunder adalah artikel atau jurnal yang diakui secara nasional. Basis data Microsoft academic (Google Scholar dan Dimension.ai) digunakan untuk mencari artikel untuk tinjauan literatur ini. Proses pencarian digunakan untuk memperoleh sumber-sumber yang relevan dan digunakan untuk merumuskan masalah atau menjawab pertanyaan penelitian dan referensi lain yang relevan. Hasil penelitian ini adalah metode Taguchi merupakan metode pengendalian kualitas yang dapat digunakan untuk meningkatkan kualitas produk dengan menetapkan standar kombinasi optimal faktor-faktor yang mempengaruhi kualitas produk.
ANALISIS BEBAN KERJA FISIK DENGAN CVL DAN PENGUKURAN WAKTU ISTIRAHAT OPTIMAL PADA PEKERJA RAW MATERIAL WAREHOUSE DI PT TRIMAN Rizki, Putri Nur; Aprianto, Teguh; Supriyadi, Edi
SISTEMIK (Jurnal Nasional Ilmu Teknik) Vol 13 No 1 (2025): SISTEMIK : Jurnal Ilmiah Nasional Bidang Ilmu Teknik
Publisher : Universitas Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53580/sistemik.v13i1.130

Abstract

Beban kerja fisik adalah beban perkerjaan yang di terima oleh fisik pekerja yang dilakukan dengan mengandalkan kegiatan fisik semata akan mengakibatkan perubahan pada fungsi alat-alat tubuh. PT. Triman adalah perusahan farmasi nasional yang memproduksi obat-obatan dan vitamin yang memiliki izin industry farmasi yang dikeluarkan oleh Kementrian Kesehatan. Permasalahan yang terjadi di PT. Triman khususnya pada pekerja raw material warehouse sebanyak 4 orang ini yaitu merasakan kecapean atau rasa pegal di bagian punggung, pinggang dan bagian tubuh lainnya. Hal tersebut tentunya sebuah masalah pada beban kerja fisik. Pada penelitian kali ini menggunakan metode CVL untuk menghitung beban kerja fisik dan pengukuran jam istirahat yang optimal. Berdasarkan hasil pengukuran beban kerja fisik menggunakan metode Cardiovascular Load (CVL) diketahui besarnya beban kerja pada pekerja 1 yaitu Bapak Wisnu Purnama sebesar 58.65%, pada pekerja 2 yaitu Bapak Willy Ramdhani sebesar 53,91%, pada pekerja 3 yaitu Bapak Randi Gunawan sebesar 58,53%, dan pada pekerja 4 yaitu Bapak Muhammad Taufik sebesar 58.29%. perbaikan waktu istirahat menggunakan pendekatan fisiologis diketahui bahwa waktu istirahat yang dibutuhkan untuk Bapak Wsinu Purnama yaitu 24,64 menit, yang awalnya 30 menit menjadi 54,64 menit, untuk waktu istirahat yang dibutuhkan untuk Bapak Willy Ramdhani yaitu 2,72 menit yang awalnya 30 menit menjadi 32,72 menit, untuk Bapak Randi Gunawan yaitu 6,52 menit, yang awalnya 30 menit menjadi 36,52 menit, sedangkan waktu istirahat yang dibutuhkan untuk Bapak Muhammad Taufik yaitu 17,56 menit yang awalnya 30 menit menjadi 47,56 menit.
Research trends in sports sciences in Indonesia: A bibliometric analysis Jumareng, Hasanuddin; Setiawan, Edi; Supriyadi, Edi; Sugiarni, Rani; Abdullah, Khairul Hafezad; Gazali, Novri; Ridwan, Mochamad; Demir, Gí¶ní¼l TekkurÅŸun; Hofmeister, Martin
Jurnal Keolahragaan Vol. 12 No. 1: April 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jk.v12i1.69568

Abstract

This study presents a comprehensive bibliometric analysis of research trends in the field of sport science in Indonesia. Using a bibliometric approach, 128 relevant articles were collected, consisting of articles published in journals, written in English, and originating from Indonesia. This research focuses on analysing publication patterns and trends, with particular emphasis on publication year, affiliated institutions, and leading authors in the field of sport science. The analysis showed that 2020 was the year with the highest number of publications, indicating an increased interest and dedication to sport science research in Indonesia during that period. Among the various educational institutions contributing to this field, Universitas Negeri Yogyakarta emerged as the leading campus with the highest number of publications, demonstrating its important role in advancing sport-related studies. Additionally, the study identified "Journal of Physics: Conference Series" as the dominant source of documents, signalling its significance in disseminating sports science research in Indonesia. To shed light on the prolific contributors, this study examined authorship patterns. In particular, three authors, Novita Sari Harahap, Yulingga Nanda Hanief, and Ahmad Nasrulloh, emerged as the most prolific in the sport science domain, with each of them writing four documents in the form of articles. Their notable contributions demonstrate their expertise and dedication to advancing knowledge in the field of sports science. In conclusion, while the current landscape of sport science research in Indonesia shows promise and progress, there are still limitations and areas for improvement. By addressing these challenges and embracing innovative research agendas, the field can continue to develop and flourish, ultimately contributing to the advancement of sport science knowledge and practice on both a local and global scale.
Publication Trends from STEAM in Education from Scopus Database: Bibliometric Analysis Supriyadi, Edi; Turmudi; Dahlan, Jarnawi Afgani; Juandi, Dadang
Jurnal Penelitian Pendidikan IPA Vol 9 No 6 (2023): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i6.3576

Abstract

The objective of this study is to shed light on the domain of STEAM education research by employing a three-pronged strategy. This article provides a bibliometric analysis of STEAM education literature by focusing on three major research questions (RQs): RQ1. How has research on STEAM education progressed? RQ2. Who is the most influential in STEAM education research? RQ3. Which affiliations and countries are contributing to STEAM in education? This study combines quantitative analysis with descriptive methods. The evolution of STEAM education and the pattern of publishing found in Scopus, which is determined by research connections, research themes, and scientific journals, are of interest to researchers. Throughout this research, the Bibliometrix R-tool and the BiblioShiny software packages were utilized, one at a time, for data analysis, reduction, visualization, and mapping, respectively. In response to RQ1, this study found the Annual Growth Rate to be 24.19%. This finding is based on the trend of publications in STEAM in Education. The results indicate that there has been an increase in the number of journal articles devoted to this subject, which are frequently disseminated. The second question this research aims to answer is which areas of STEAM education research have the most influence. While Piperopoulos P has the top spot for the most globally mentioned documents, Perignat E holds the top spot for the most locally cited papers. In the meantime, Herro D is a writer who has contributed to the study done in the field of STEAM education. As for RQ3, it can be noted that Jeju National University and the Korea National University of Education are the top two campuses in the world regarding STEAM in Education research publications, both of which are located in South Korea.
Ethnomathematics in Javanese and Sundanese batik: An AI-assisted comparative analysis Adhitya, Yusuf; Supriyadi, Edi
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 3 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i3.18024

Abstract

This research is an ethnographic study using two AI tools (ChatGPT and Gemini AI) to analyze comparatively the different patterns between Javanese and Sundanese batik. The data was obtained from two AI-generated outputs of two prompts focusing on geometric patterns and transformations. The study used a triangulation process by matching and contrasting AI-generated outcomes with previous literature. The findings reveal that: 1) Javanese batik motifs contain more geometric designs, in the other hand, Sundanese batik tends to use more fluid and organic patterns, and 2) the majority of Javanese batik combines both reflection and rotation, whereas Sundanese batik uses translation and reflection. Math properties from both batik designs are inspired by different cultures. Batik patterns from Java represent values such as balance, organization, and class whereas Sundanese batik expresses Sundanese beliefs about respect for nature. It highlights that traditional arts should be integrated into mathematics teaching to better understand and appreciate their role in various cultures.
Hypothetical Learning Trajectory in Scientific Approach on Material Direct Proportion: Context of Rice Farmers' Activities Pandanwangi Cianjur Sugiarni, Rani; Herman, Tatang; Juandi, Dadang; Supriyadi, Edi
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

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Abstract

Rice farmer activities can be used as a context for understanding mathematical concepts. There are many studies on Hypothetical Learning Trajectory (HLT) on direct proportion material with a cultural context background. However, there is no research that focuses on using the context of Pandanwangi rice farmers to facilitate students in understanding material in direct proportion.This study aims to design Hypothetical Learning Trajectory (HLT) in Scientific Approach on Material Direct Proportion in the Context of Rice Farmers' Activities in Pandanwangi Cianjur, who are familiar with student culture in Cianjur. This research is part of design research. The research design consisted of HLT, namely learning objectives, learning activities, and student learning hypotheses. The result of the research is the set of HLT in the context of Pandanwangi Rice Farmer Activities, which includes learning objectives, learning activities, and the assumptions of each activity. This HLT can be a promising solution to overcome students' difficulties in understanding the concept of direct proportion and values in a cultural context to improve students' character.