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All Journal International Journal of Electrical and Computer Engineering Gema Wiralodra Community Development Journal: Jurnal Pengabdian Masyarakat Journal Of Human And Education (JAHE) EduMatika: Jurnal MIPA
Gayus Simarmata, Gayus
FKIP Universitas HKBP Nomensen Pematangsiantar
Humanities Chemistry Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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Analysis of Students' Mathematical Understanding in Gradient Material Linear Function Graphics Class IX UPTD SMP Negeri 3 Pematang Siantar Br Sitepu, Yesika Veronika; Pangaribuan, Firman; Simarmata, Gayus
EduMatika: Jurnal MIPA Vol. 3 No. 4 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i4.400

Abstract

This research aims to find out how to analyze students' mathematical understanding of gradient materials for linear function graphs for Class IX 7 UPTD SMP Negeri 3 Pematang Siantar. The research method used in this research is a qualitative method with descriptive data analysis. The subjects in this research are all students in class IX 7 of SMP Negeri 3 Pematang Siantar in the 2023/2024 academic year. The number of subjects in this research was 30 students. The instrument used in this research is a mathematical understanding test in the form of a description using 3 indicators, namely restating concepts that have been studied, presenting concepts in various forms of mathematical representation, applying concepts or problem-solving algorithms. These 3 indicators are used in 6 questions. Based on the data analysis carried out, the overall mathematical understanding ability of students is at a medium level, namely with a percentage of 47.8%. The indicators used are 1) restating mathematical concepts, 2) presenting mathematical representations, 3) applying concepts or problem-solving algorithms. Based on the previous explanation, it can be concluded that the mathematical understanding of students in class IX 7 UPTD SMP Negeri 3 Pematang Siantar as a whole is at a medium level.
Strategic plant maintenance planning in agriculture by integrating lean principles and optimization Simarmata, Gayus; Suwilo, Saib; Sitompul, Opim Salim; Sutarman, Sutarman
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 6: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i6.pp6279-6286

Abstract

Operational planning within agricultural production systems plays a pivotal role in facilitating farmers' decision-making processes. This study introduces a novel mathematical model aimed at optimizing plant maintenance planning through the efficient allocation of labor, optimal utilization of machinery, and strategic scheduling. Utilizing mixed integer non-linear programming (MINLP), the model integrates lean principles to minimize waste and improve operational efficiency. The primary contributions of this study include the development of a comprehensive maintenance planning model, the application of advanced mathematical techniques in agriculture, and the enhancement of resource allocation strategies. The results demonstrate significant improvements in maintenance task scheduling, reduced downtime, and enhanced productivity, ultimately contributing to sustainable farming practices and food security. This model serves as a strategic decision-support tool for farmers, enabling data-driven planning and resource utilization to achieve both short-term efficiency and long-term agricultural viability.
PENINGKATAN KOMPETENSI GURU MELALUI PELATIHAN MODEL PEMBELAJARAN TERINTEGRASI KEARIFAN LOKAL SUMATERA UTARA Simarmata, Gayus; Pasaribu, Sunggul; Priyanti, Dwi; Siahaan, Anton Luvi; Simamora, Benjamin A; Hartati, Risma; Arisetya, Dian; Zulmawati, Zulmawati; Hutagalung, Insenalia Sampe Roly; Siahaan, Rina Devi Romauli; Lumbangaol, Sudirman TP.; Purba, Yoel Octobe; Siregar, Junifer; Silitonga, Immanuel Doclas Belmondo
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 4 (2024): Volume 5 No. 4 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i4.32361

Abstract

Pengabdian ini bertujuan untuk meningkatkan kompetensi guru melalui pelatihan model pembelajaran yang terintegrasi dengan kearifan lokal Sumatera Utara. Pelatihan ini diikuti oleh 20 guru SMA HKBP Nommensen Pematangsiantar dan berlangsung selama lima hari di Pematangsianatr. Metode pelatihan meliputi workshop, diskusi kelompok, dan simulasi kelas yang menekankan pada penggunaan elemen budaya lokal seperti ulos, cerita rakyat, dan sejarah lokal dalam pembelajaran. Hasil penelitian menunjukkan bahwa rata-rata kompetensi guru meningkat dari 60% pada pre-test menjadi 90% pada post-test, mencerminkan peningkatan sebesar 30%. Selain itu, 90% guru mulai mengimplementasikan kearifan lokal dalam pembelajaran sehari-hari setelah mengikuti pelatihan. Meskipun demikian, beberapa kendala seperti kesulitan dalam memahami dan mengadaptasi kearifan lokal ke dalam kurikulum, serta keterbatasan waktu dan sumber daya masih dihadapi oleh para guru. Untuk memastikan keberlanjutan peningkatan kompetensi, direkomendasikan adanya pelatihan lanjutan, workshop berkala, dan pendampingan berkelanjutan. Hasil penelitian ini juga mengindikasikan bahwa pelatihan berbasis kearifan lokal sangat efektif dan harus dipertimbangkan dalam kebijakan pendidikan untuk meningkatkan kualitas pendidikan serta melestarikan budaya lokal.
Meningkatkan Kemampuan Pemahaman Konsep Siswa SD Pada Materi Bangun Datar di SD Swasta RK No. 4 Pematangsiantar Br Sinaga, Juli Antasari; Purba, Nancy Angelia; Sitohang, Sukardo; Sidabutar, Ropinus; Butar-Butar, Injen Pardamean; Sitorus, Esther; Simarmata, Gayus; Purba, Leony; Manurung, Yessi Hans Aprilia; Manik, Ropitta Anjelina; Tannuary, Arwin; Berlien, Richard
Journal Of Human And Education (JAHE) Vol. 4 No. 3 (2024): Journal of Human And Education
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v4i3.949

Abstract

Kegiatan Pengabdian Kepada Masyarakat (PkM) ini bertujuan untuk meningkatkan kemampuan pemahaman konsep siswa kelas V SD pada materi bangun datar khusunya persegi dan persegi panjang. Kegiatan ini diadakan pada tanggal 10 November 2022 di di kelas VA SD RK No 4 Pematangsiantar yang beralamat di jalan Tambun Jaya Kel.Siopat Suhu Kec. Siantar Timur Kota Pematangsiantar Sumatera Utara. Kegiatan PkM ini dilaksanakan melalui 3 tahap, yakni: (1) Tahap Persiapan, dalam tahap ini kegiatan diawali dengan melakukan pengamatan di lapangan, wawancara terhadap guru dan kepala sekolah, mempersiapkan perangkat pembelajaran, dan membuat proposal PkM; (2) Tahap Pelaksanaan, dalam tahap ini kegiatan yang dilakukan adalah tim PkM melaksanakan kegiatan belajar mengajar sesuai dengan perangkat pembelajaran yang telah disediakan oleh tim; dan (3) Tahap Akhir, dalam tahap ini, tim PkM melakukan evaluasi terhadap pembelajaran yang sudah terlaksana dengan baik, dan membuat laporan hasil PkM. Adapun hasil yang diperoleh dari kegiatan PkM ini diperoleh bahwa sebanyak 83% siswa berada pada kategori tinggi level pemahaman konsepnya, 10% siswa berada pada kategori sedang pemahaman konsepnya, dan 7% siswa berada pada kategori rendah kemampuan pemahaman konsepnya. Kegiatan ini juga mendapat respon yang positif, yakni 100% respon siswa senang terhadap pembelajaran, 93,33% tertarik dengan media pembelajaran dan 6, 66% siswa tidak tertarik dengan media pembelajaran.
Developing Lecture Modules Using a Problem-Based Learning Model with Local Cultural Nuances to Improve Reasoning Ability Simanungkalit, Rick Hunter; Simarmata, Gayus; Saragih, Widya Safira
Gema Wiralodra Vol. 15 No. 2 (2024): Gema Wiralodra
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/gw.v15i2.717

Abstract

One of the abilities that educators must pay attention to when learning mathematics is mathematical reasoning abilities. Various efforts have been made by teachers, researchers and educational practitioners to improve mathematical reasoning abilities, but in reality, reasoning abilities are still in the low category. The aim of this research is to develop a lecture module with a problem-based learning model with local cultural nuances to improve reasoning abilities. Learning packaged in local culture is one way to make it easier to understand mathematics.The method used in this research is the development method with the Thiagarajan 4-D development design The research results show that the module developed is valid, effective and practical and can improve mathematical reasoning abilities
Co-Authors Anton Luvi Siahaan Berlien, Richard Br Sitepu, Yesika Veronika Butar-Butar, Injen Pardamean Dian Arisetya, Dian Dwi Priyanti Firman Pangaribuan Insenalia Sampe Roly Hutagalung Juli Antasari Br Sinaga Junifer Siregar Lumbangaol, Sudirman T. P Manik, Ropitta Anjelina Manurung, Yessi Hans Aprilia Opim Salim Sitompul Pasaribu, Sunggul Purba, Leony Purba, Nancy Angelia Purba, Yoel Octobe Rick Hunter Simanungkalit, Rick Hunter Risma Hartati, Risma Saib Suwilo Saragih, Widya Safira Siahaan, Rina Devi Romauli Sidabutar, Ropinus Silitonga, Immanuel Doclas Belmondo Simamora, Benjamin A Sitorus, Esther Sukardo Sitohang Sutarman Sutarman Tannuary, Arwin Zulmawati, Zulmawati