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All Journal Al-Wijdan : Journal of Islamic Education Studies Tibuana : Journal of Applied Industrial Engineering Jurnal Cendekia : Jurnal Pendidikan Matematika Jurnal Teknik Industri Terintegrasi (JUTIN) Reswara: Jurnal Pengabdian Kepada Masyarakat Industrika : Jurnal Ilmiah Teknik Industri JagoMIPA: Jurnal Pendidikan Matematika dan IPA KARYA: Jurnal Pengabdian Kepada Masyarakat Edukasia: Jurnal Pendidikan dan Pembelajaran Polinomial : Jurnal Pendidikan Matematika Journal Focus Action of Research Mathematic (Factor M) Scientica: Jurnal Ilmiah Sains dan Teknologi Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Solusi Masyarakat Dikara Jurnal Teknik Indonesia (JU-TI) Civitas: Jurnal Pengabdian Masyarakat
Doni Susanto, Doni
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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PENERAPAN MEDIA DIGITAL BERBASIS GEOGEBRA DALAM PEMBELAJARAN GEOMETRI: STUDI ABDIMAS DI SDN BANCONG Untari, Erny; Astuti, Indra Puji; Nita, Sekreningsih; Susanto, Doni; Khoiri, Halwa Annisa
KARYA: Jurnal Pengabdian Kepada Masyarakat Vol 5 No 3 (2025): KARYA: Jurnal Pengabdian Kepada Masyarakat
Publisher : FKIP Universitas Samawa

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Abstract

Gerakan dharma bakti kepada masyarakat (Abdimas) ini bertujuan untuk meningkatkan kualitas pembelajaran geometri pada bangun datar di SDN Bancong melalui penerapan media digital berbasis GeoGebra. Berdasarkan wawancara permasalahan yang dihadapi guru dan siswa meliputi keterbatasan media konkret, rendahnya visualisasi konsep, serta minimnya pemanfaatan teknologi dalam pelajaran matematika. Kegiatan dilakukan melalui pelatihan penggunaan GeoGebra, pendampingan implementasi di kelas, dan evaluasi hasil penerapan pembelajaran. Metode Abdimas meliputi observasi awal, workshop, praktik langsung, dan refleksi guru. Hasil kegiatan  memperlihatkan adanya kemajuan kemahiran guru dalam menciptakan media interaktif dengan GeoGebra serta meningkatnya antusiasme dan pemahaman siswa terhadap konsep geometri. Penggunaan GeoGebra terbukti membantu visualisasi geometri pada bangun datar, meningkatkan interaksi dan partisipasi kelas, serta memperbaiki hasil belajar. Kegiatan Abdimas ini menunjukkan bahwa media digital dapat menjadi alternatif efektif untuk mendukung pengajaran matematika di sekolah dasar terutama geometri tentang bangun datar.
Eksplorasi Etnomatematika Pada Benteng “Van Den Bosch” Ngawi Susanto, Doni; Untari, Erny; Khoiri, Halwa Annisa
Polinomial : Jurnal Pendidikan Matematika Vol. 5 No. 1 (2026)
Publisher : Papanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56916/jp.v5i1.3044

Abstract

Mathematics is often regarded as a discipline detached from social and cultural contexts, even though the development of mathematical concepts is inherently connected to human experiences in understanding space, form, and everyday needs. Ethnomathematics emerges as a perspective that highlights this interrelationship by positioning mathematical practices as an integral part of culture. This study aims to examine the application of mathematical concepts found in Van den Bosch Fort in Ngawi, a nineteenth-century colonial structure built by the Dutch for defense purposes and for monitoring strategic routes at the confluence of the Bengawan Solo and Madiun rivers. Employing a qualitative approach with an ethnographic method, this research conducted direct observations of the building’s structure, interviews with local informants, and visual documentation to identify mathematical elements embedded within the fort’s architectural features. The data analysis techniques used were data collection, data presentation and drawing conclusions. The findings reveal that various concepts of plane and solid geometry are represented through the shapes of the gateways, doors, windows, guard posts, and supporting pillars, which include squares, rectangles, equilateral triangles, right triangles, semicircles, and cylinders. These results demonstrate that colonial architecture was not solely designed based on strategic or military considerations, but also incorporated systematic mathematical principles. In addition to providing theoretical contributions to ethnomathematics studies, this research holds practical implications for the development of culture-based mathematics learning. By utilizing historical buildings as learning resources, students are expected to gain a more contextual and meaningful understanding of mathematics while cultivating an appreciation for the historical and local values embodied in Van den Bosch Fort.
Analisis Perbaikan Kualitas pada Produksi Printing Kain Cotton Menggunakan DMAIC dan Kaizen di PT. TFX Wulandari, Ristanti Ayu; Hendrawan, Aloysius Tommy; Susanto, Doni
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 2 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/b5r2k580

Abstract

The role of the textile industry is very important because this industry is involved in the supply of clothing. This research was conducted at Company TFX located in Central Java Province. There is a problem of a relatively high defect rate, hence improvements are needed. The method used is Six Sigma with a DMAIC approach (Define, Measure, Analyze, Improve, and Control) and Kaizen with a 5S approach to analyze quality management improvements at the company. The results of this study indicate that there are various types of defects, but the highest defect type is Folding Marks with a defect count of 39,211 yards and closed screen defects of 39,167 yards. The sigma value calculated is 3.24. Additionally, the analysis using Kaizen can be summarized as follows: organizing items that have been used, tidying up materials and tools used, cleaning tools and production areas and conducting a briefing for the employees. Keywords: Kaizen, Quality Control, Six Sigma
Model Lean Manufacturing With The VSM Method to Reduce Waste In The Production Process Box Electrical Panel at PT.DMI Kiswoyo, Danu; Muttaqin, Aan Zainal; Susanto, Doni
Tibuana Vol 7 No 01 (2024): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.7.01.7937.65-71

Abstract

DMI is a medium-sized company that produces electrical panel boxes. Make To Order (MTO) is a reference as the start of the production process. The production process includes plate cutting, bending, welding, grinding, powder coating and part-by-part assembly processes. Lean Manufacturing started in Japanese manufacturing, to eliminate all waste from the process while pursuing quality improvement in producing finished products. Value stream mapping is an important step in the lean transformation process before entering the waste elimination stage. which can lead to a decrease in the productivity of the company. One of the biggest problems was the lack of bending machines and not having our own powder coating machine.
Co-Authors Ahmad Zainuri Anggoro, Rangga Bayu Anshori, Mushtofa Lutfil Astiwi, Wuri Astuti, Indra Puji Darmansyah, Mochammad Rico Erny Untari Erny Untari, Erny Frastyansyah, Agun Syahrul Hendrawan, Aloysius Tommy Ichwannudin, Rifqi Wahyu Khoiri, Halwa Annisa Kiswoyo, Danu Kusumawati, Serlie Mardiansyah, Bagas Tri Mubarok, Muhammad Kafid Muttaqin, Aan Muttaqin, Aan Zainal Nita, Sekreningsih Nugroho, Galuh Ari Nugroho, Risky Alifian Putri, Helena Anggraeni Sabera Adib, Helen Setiawan, Ahmad Hari Siswanto, Deni Hadi Siswanto, Deny Hadi Wulandari, Ristanti Ayu