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All Journal International Journal of Electrical and Computer Engineering Efisiensi : Kajian Ilmu Administrasi Jurnal Teknologi Pendidikan Jurnal TIMES ELEMENTARY SCHOOL JOURNAL PGSD FIP UNIMED Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Pendidikan (Teori dan Praktik) JURNAL MANAJEMEN PENDIDIKAN INDONESIA JURNAL PENDIDIKAN DAN KEPENGAWASAN JKTP: Jurnal Kajian Teknologi Pendidikan JCRS (Journal of Community Research and Service) SALTeL Journal (Southeast Asia Language Teaching and Learning) SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL Randwick International of Education and Linguistics Jurnal Teknologi Pendidikan : Jurnal Penelitian dan Pengembangan Pembelajaran Britain International of Humanities and Social Sciences (BIoHS) Journal Britain International for Linguistics, Arts and Education Journal (BIoLAE Journal) Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Educenter: Jurnal Ilmiah Pendidikan JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Journal of Electrical Vocational Teacher Education Jurnal Media dan Teknologi Pendidikan JURNAL PENELITIAN BIDANG PENDIDIKAN Jurnal Educative: Journal of Educational Studies JP (Jurnal Pendidikan) : Teori dan Praktik Information Technology Education Journal Algebra EDUCENTER JURNAL PENDIDIKAN Vocational: Journal of Educational Technology Journal of Nursing Update Indonesian Journal of Islamic Jurisprudence, Economic and Legal Theory Curricula: Journal of Curriculum Development
Sahat Siagian
Universitas Negeri Medan
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering 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 Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences Other

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Development of Social Studies Multimedia Learning Based on Discovery Learning Using Kodular at The Junior High School Level Lasmaria Samosir; Erma Yulia; Sahat Siagian; Sahat Maringan Samosir
Jurnal Educative: Journal of Educational Studies Vol. 10 No. 1 (2025): June 2025
Publisher : Universitas Islam Negeri Sjech M. Djamil Djambek Bukittinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30983/educative.v10i1.9633

Abstract

This study aims to develop interactive learning multimedia based on the Discovery Learning approach using the Kodular application for teaching Demand, Supply, and Equilibrium Price in Economics subjects at SMP Swasta Santo Thomas 1 Medan. The research adopts a Research and Development (R&D) approach, utilizing the ADDIE model (Analysis, Design, Development, Implementation, Evaluation), which is commonly used in educational product development. The development process was carried out systematically through five stages, focusing on creating multimedia that supports student self-directed learning and enhances their understanding of the subject matter. The results of the study show that the developed multimedia was well received by students, as evidenced by its effectiveness in facilitating active learning and increasing student engagement. This is reflected in the significant improvement in the average student scores from 39.28 before the implementation to 94.53 after the use of Kodular-based multimedia. At the evaluation stage, the application was well accepted and provided a deeper understanding of economic concepts to the students, based on positive feedback from expert validators and learners. The study concludes that the implementation of Discovery Learning through Kodular significantly enhances the quality of instruction, providing students with a deeper comprehension of complex topics in Economics.
DEVELOPMENT OF THE MOBILE CAP LEARNING MODEL IN HIGH SCHOOL FOR CIVICS SUBJECT Khairil Anwar Uzir; Sahat Siagian; R. Mursid
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 5 No. 3 (2025): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/morfai.v5i3.4196

Abstract

Abstract: The purpose of this study is to (1) find out the Mobile CAP learning model is suitable for use in Civics Subject learning, (2) find out the Mobile CAP learning model is practically used in Civics Subject learning, (3) find out that the Mobile CAP model is effective in Civics Subject learning in Class X of Pematangsiantar City High School. The development procedure of the Mobile CAP model refers to the Plomp development model accompanied by several modifications by paying attention to the R&D research steps consisting of the initial investigation phase, the design phase, the realization phase, the testing phase, evaluation, and revision. The location of the development trial is SMA Negeri 6 Pematangsiantar. The results of the study, namely the assessment or feasibility measurement carried out by experts on the learning model and supporting device products in the form of learning models, model books, teacher manuals, student manuals, Mobile CAP media, and the evaluation of learning outcomes as a whole are valid/feasible to be used for Civics Subject learning to students. The results of the practicality test through observation of teacher and student activities during learning, one-on-one trials, limited group trials, and field trials conducted on teachers and students prove that the entire product developed is very practical to use for Civics Subject learning for students. The results of the product effectiveness test through student learning outcomes obtained an N-Gain price with a high category which means that the product developed is effectively used in the implementation of Civics Subject learning for students.
Urgensi Pengaturan Cyber Insurance (Asuransi Siber) Wajib Bagi Bank Fitrianto, Bambang; Armayanti, Rika; Siagian, Sahat
Indonesian Journal of Islamic Jurisprudence, Economic and Legal Theory Vol. 3 No. 4 (2025)
Publisher : Sharia Journal and Education Center Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62976/ijijel.v3i4.1564

Abstract

The rapid development of information technology and the digitalization of banking services have brought convenience as well as new risks in the form of increasingly complex cyber threats, such as data breaches, system hacking, and operational disruptions. These cyber risks not only affect the internal stability of banks but also potentially cause losses to customers and undermine public trust in the national financial system. Although the Indonesian banking regulatory framework has addressed risk management and data protection, specific regulations concerning mandatory cyber insurance for banks have not yet been comprehensively established. This study aims to analyze the urgency of regulating cyber insurance as a legal obligation for banks in order to strengthen legal protection, risk mitigation, and banking system stability. The research employs a normative legal method with statutory and conceptual approaches by examining banking regulations, data protection laws, and legal doctrines related to risk management and insurance. The findings indicate that cyber insurance plays a strategic role as a non-financial risk mitigation instrument by providing financial protection against losses caused by cyber attacks. Therefore, the mandatory regulation of cyber insurance for banks is an urgent necessity to ensure customer protection, enhance banking resilience, and support trust and stability within the national financial system.
Design and Evaluation of an Integrated Virtual Laboratory Framework with Learning Analytics for Vocational Computer Network Engineering Education Haida Dafitri; Abdul Hamid K; Sahat Siagian
Information Technology Education Journal Vol. 5, No. 2, May (2026)
Publisher : Jurusan Teknik Informatika dan Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/intec.v5i2.266

Abstract

Purpose — This study proposes and evaluates an integrated virtual laboratory learning framework that combines virtual laboratories, Learning Management Systems (LMS), and learning analytics to support structured learning in vocational computer network engineering education. The framework is organized into five instructional phases (Highlight–Analyze–Integrate–Do–Assess) to facilitate coherent learning progression and data-informed feedback. Design/methods/approach — An early-stage (single-cycle) Design-Based Research (DBR) approach was employed using a quasi-experimental pre-test–post-test design involving 60 vocational high school students. Data were collected through cognitive achievement tests, practical performance assessments, classroom observations, and LMS-based learning analytics logs. Data analysis included normalized gain (N-gain), paired-sample t-tests, effect size (Cohen’s d), and descriptive and correlational analyses. Findings — The results indicate that the proposed framework is associated with improved cognitive achievement, with mean scores increasing from 58.3 to 82.7 (N-gain = 0.57). A statistically significant difference was found between pre-test and post-test scores (p < 0.001), with a large effect size (d = 1.34). In addition, 90% of students successfully completed virtual laboratory tasks. Learning analytics further revealed reduced error frequency, increased task efficiency, and more consistent engagement patterns over time. Research implications/limitations — Significant correlations were found between learning behaviors and outcomes, particularly task completion rate (r = 0.52). However, due to the absence of a control group, the single-institution context, and the early-stage DBR design, the findings should be interpreted as indicative rather than causal, limiting generalizability. Originality/value — This study contributes by demonstrating how virtual laboratories, LMS, and learning analytics can be systematically aligned within a structured instructional framework in vocational education. The study emphasizes pedagogical sequencing and the integration of behavioral analytics into the learning process, providing initial empirical support for technology-enhanced instructional design that warrants further validation through multi-site and longitudinal studies.
Performance Enhancement of Distribution System using Grey Wolf Optimizer for Capacitor Placement and Sizing Considering Load Variations Sahat Siagian; Yoakim Simamora; Desman Jonto Sinaga; Mas Aly Afandi
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 10 No 3 (2026): June 2026
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v10i3.7482

Abstract

This research introduces a Grey Wolf Optimizer (GWO) strategy for determining the optimal placement and sizing of shunt capacitors in radial distribution networks under different load scenarios. The task is structured as a multi-scenario optimization model aimed at reducing active power loss, voltage deviation, and annual compensation expenses, all while adhering to bus voltage and line current limitations. Unlike traditional methods that focus on capacitor allocation for a single operating condition, this approach explicitly accounts for light, normal, and heavy load conditions to ensure solutions are effective throughout daily demand fluctuations. The method is tested on the IEEE 33-bus distribution system and benchmarked against several existing metaheuristic techniques. Findings reveal that GWO consistently provides viable capacitor configurations across all load conditions and offers enhanced technical and economic outcomes. During normal load conditions, the method decreases active power loss from 202.69 kW to 131.83 kW, and under heavy load, it achieves the highest annual net savings of $97,588. In summary, the results suggest that GWO is a reliable and economical solution for reactive power compensation planning in distribution systems with variable loads.
Developing a Participatory, Integrative, and Collaborative Competency-Based Training Model (PIKOLAK) through Blended Learning to Enhance the Teachers’ Professional Competence Benyamin Nababan; Sahat Siagian; Abdul Hamid; Holmes Rajagukguk
SALTeL Journal (Southeast Asia Language Teaching and Learning) Vol. 8 No. 1: January 2025
Publisher : Association of Language Teachers in Southeast Asia (ALTSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35307/saltel.v8i1.128

Abstract

This study employed a Research and Development (R&D) methodology to design, develop, and evaluate the Participatory, Integrative, and Collaborative Competency-Based Training Model (PIKOLAK), utilizing a blended learning approach to enhance the professional competence of teachers in Humbang Hasundutan Regency. The development process followed an iterative sequence of stages, including a comprehensive needs analysis, systematic model design, expert validation, and rigorous field testing. The blended learning framework integrated face-to-face sessions with online components, allowing for greater flexibility and accessibility while maintaining instructional quality. The implementation of the PIKOLAK model resulted in a marked improvement in teachers' professional competencies. Quantitative analysis revealed a statistically significant increase in mean test scores, rising from 65.2 on the pre-test to 83.7 on the post-test (p < 0.01). These findings suggest that the model effectively addressed gaps in teachers' knowledge and skills. Qualitative feedback from participating teachers further supported these outcomes, indicating increased engagement, stronger collaborative practices, and enhanced application of pedagogical competencies in real classroom contexts. The participatory and integrative learning strategies embedded in the model were particularly appreciated, as they fostered a sense of ownership and relevance among learners. Overall, the results affirm that the PIKOLAK model is a valid, reliable, and effective framework for advancing teacher professional development. Its blended format offers a scalable and adaptable solution that accommodates diverse learning needs while promoting sustainable, practice-based improvements in educational quality. Consequently, the model holds significant potential for broader implementation across similar educational contexts.
DEVELOPMENT OF PROBLEM BASED LEARNING-BASED E-MEDIA TO IMPROVE STUDENTS’ MATHEMATICS LEARNING OUTCOMES IN JUNIOR HIGH SCHOOL Enda Raskita Tarigan; Abdul Hasan Saragih; Sahat Siagian
SOSIOEDUKASI Vol 15 No 3 (2026): SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan Universaitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/sosioedukasi.v15i3.9157

Abstract

Mathematics learning in junior high schools still faces various challenges, particularly in students’ low achievement and difficulties in understanding abstract concepts such as linear equations. This condition is reflected in Indonesia’s low performance in international assessments such as PISA and TIMSS, as well as the low mathematics achievement of students at SMP Swasta RK Fransiskus Xaverius Namorambe. The learning process remains teacher-centered and has not optimally utilized interactive digital learning media. Therefore, this study aims to develop a Problem Based Learning (PBL)-based E-Media using Google Sites to improve students’ mathematics learning outcomes on the topic of Linear Equations. This study employed a Research and Development (R&D) method using the ADDIE model, consisting of Analysis, Design, Development, Implementation, and Evaluation stages. The research subjects were eighth-grade students of SMP Swasta RK Fransiskus Xaverius. Data were collected through interviews, observations, validation sheets, questionnaires, and learning outcome tests. Data analysis techniques included validity analysis, practicality analysis, effectiveness analysis, normality and homogeneity tests, and hypothesis testing. The novelty of this research lies in integrating Google Sites with the Problem Based Learning model to create an adaptive, interactive, and student-centered digital learning environment. The developed media is expected to be valid, practical, and effective in improving students’ understanding, motivation, critical thinking skills, and mathematics learning outcomes. This study also provides implications for the development of technology-based mathematics learning media in junior high schools.
EVALUATING THE COMPUTER BASE NATIONAL SCIENCE OLYMPIAD IMPLEMENTATION AT SENIOR HIGH SCHOOL LEVEL: A CIPP MODEL ANALYSIS Marwa Halim; Awal Kurnia Putra Nasution; Sahat Siagian; Harun Sitompul; Muktar; Zulkifli Matondang
Jurnal TIMES Vol 15 No 1 (2026): Jurnal TIMES
Publisher : STMIK TIME

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51351/jtm.15.1.2026931

Abstract

The digital transformation in education has encouraged changes in national evaluation systems and academic competitions, including the implementation of the online-based National Science Olympiad (OSN). This study aims to evaluate the implementation of the online National Science Olympiad at the senior high school level using the CIPP (Context, Input, Process, Product) evaluation model. The study employed a mixed methods approach by collecting data through questionnaires, interviews, observations, and documentation studies. The participants consisted of student contestants, supervising teachers, school operators, and school management representatives. The findings indicate that, from the context aspect, the program is relevant to the needs of educational digitalization and implementation efficiency. From the input aspect, disparities were still found in infrastructure, internet network quality, and digital competencies among schools. From the process aspect, the program implementation generally ran well despite several technical constraints and variations in supervision quality. From the product aspect, the program improved accessibility and efficiency; however, it also generated perceptions of unfairness among some participants. The study concludes that the implementation of the online OSN is relatively effective, but it still requires improvements in infrastructure, technical standardization, and the integrity of the evaluation system. These findings contribute to the development of fairer and more sustainable digital academic competition policies.
Development of Genially-based interactive multimedia for junior high school English learning Dewi Bernike Tampubolon; Sahat Siagian; Abdul Hasan Saragih
Curricula: Journal of Curriculum Development Vol. 4 No. 1 (2025): Curricula: Journal of Curriculum Development
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/curricula.v4i1.84642

Abstract

The integration of technology into education is crucial for enhancing learning quality and student engagement. Many junior high school students face difficulties in learning English, particularly in writing descriptive texts, due to the lack of interactive and engaging media. This study aims to develop interactive learning multimedia using the Genially platform to support English learning at SMP N 2 STM Hulu. The research employed the ADDIE instructional design model, while the product development process followed the Multimedia Development Life Cycle (MDLC) model. The media features descriptive text materials enhanced with animations, games, quizzes, and videos to support student comprehension and motivation. Validation by subject matter experts indicates high feasibility. Field trials showed practicality, and results from the independent t-test indicated a significant difference in learning outcomes between the experimental and control classes. These findings suggest that Genially-based multimedia developed through MDLC within the ADDIE framework is a highly feasible, practical, and effective tool to enhance the quality of English language learning in junior high schools.   Abstrak Integrasi teknologi dalam pendidikan menjadi kebutuhan penting untuk meningkatkan kualitas pembelajaran dan keterlibatan peserta didik. Banyak peserta didik SMP mengalami kesulitan dalam pembelajaran Bahasa Inggris, khususnya dalam menulis teks deskriptif, karena kurangnya media yang interaktif dan menarik. Penelitian ini bertujuan untuk mengembangkan multimedia pembelajaran interaktif menggunakan platform Genially untuk mendukung pembelajaran Bahasa Inggris di SMP N 2 STM Hulu. Penelitian ini menggunakan model desain pembelajaran ADDIE, sementara proses pengembangan produk multimedia mengikuti model Multimedia Development Life Cycle (MDLC). Media yang dikembangkan memuat materi teks deskriptif dengan animasi, permainan, kuis, dan video untuk meningkatkan pemahaman dan motivasi peserta didik. Hasil validasi ahli materi, ahli media, dan ahli desain pembelajaran menunjukkan kelayakan tinggi. Uji coba lapangan menunjukkan kepraktisan dan memperlihatkan hasil uji t independen menunjukkan perbedaan signifikan antara hasil belajar kelas eksperimen dan kelas kontrol. Temuan ini menyimpulkan bahwa multimedia berbasis Genially yang dikembangkan melalui model MDLC dalam kerangka ADDIE sangat layak, praktis, dan efektif untuk meningkatkan kualitas pembelajaran Bahasa Inggris di tingkat SMP. Kata Kunci: Genially; MDLC; multimedia interaktif; pembelajaran bahasa Inggris
Co-Authors . Hudaibiyah Abdul Hamid Abdul Hamid K Abdul Hamid K Abdul Hasan Saragih Abdul Hasan Saragih Abdul Hasan Saragih Abdul Hasan Saragih Abdul Muin Sibuea Agus Junaidi Ali Fikri Hasibuan Amlan . Andromeda Valentino Andromeda Valentino Anggraini, Mela Anwar Saleh Armayanti, Rika Awal Kurnia Putra Nasution Baharuddin Baharuddin Bakil, M Sulthan Barus, Zulkarnain Barus, Zulkarnain Benyamin Nababan Biner Ambarita Binsar Panjaitan Binsar Panjaitan, Binsar Budi Kuspriyanto Darmawaty Tarigan Darmawaty Tarigan, Darmawaty Deslina Simamora Desman Jonto Sinaga Dewi Bernike Tampubolon Dhea Putri Pratiwi Br Ginting Dian Maya Sari DINA AMPERA Efendi Napitupulu Efriyani W. Tarigan Eko Wahyu Nugrahadi Elfrida Lubis Eli Tohonan Tua Pane Enda Raskita Tarigan Erma Yulia Faisal, Eko Farida Nurmalasari Fitrianto, Bambang Haida Dafitri Harun Sitompul Hasibuan, Nurkholijah Rohma Hendra . Hendra . Holmes Rajagukguk Horas Karlos Pasaribu Ima Pinensi Tarigan Indra Yasinta O. Marpaung Irda Hayati Jamiter Silalahi Jefri Kurniawan Korua Juniati . Khairil Anwar Khairil Anwar Uzir Lasmaria Samosir Lingin lingin Marpaung, Indra Yasinta O. Marwa Halim Mas Aly Afandi Mey Alsih Sihombing Monika Meriana Simamora Muhammad Amin Muhammad Ridwan Muhammad Ridwan Mukhtar . Muktar Murni, Deli Mustaqim, Bima Naeklan Simbolon Opetu, Demitila Okola Paimin Tanjung R Mursid R Mursid R Mursid R Mursid R. Mursid R. Mursid R. Mursid R. Sapto Hendri Boedi Soesatyo Rangga Restu Prayogo, Rangga Restu Riduan Saleh Lubis Robinson Hutagaol Rudi Hardjon Ruth Maduma Silitonga S. Sugiharto Sahat Maringan Samosir Samsidar Tanjung Sehana, Franciscus Sembiring, Tamaulina Br. Sianturi, Roy Simamora, Deslina Sinaga, Enny Keristiana Sormin, Dimpos Yustinus Sriadhi Sriadhi, Sriadhi Sukarman Purba Susilo . Tangson R Pangaribuan Tarigan, Ima Pinensi Tri Andri Hutapea Try Ade Jumita Wulandari Try Junita Wulandari Usamah, M. Dai Wahyu Tri Atmojo Wau, Yasaratodo Winner Macson Pandiangan Wulandari, Try Ade Jumita Wulandari, Try Junita Yahaya, Wan Ahmad Jaafar Wan Yasaratodo Wau Yoakim Simamora Zulkifli Matondang