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All Journal Edumatsains Desimal: Jurnal Matematika Jurnal Pendidikan Matematika (JUDIKA EDUCATION) JURNAL PENDIDIKAN TAMBUSAI Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika JURNAL PEMBELAJARAN DAN MATEMATIKA SIGMA (JPMS) JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Jurnal Media Komunikasi Pendidikan Pancasila dan Kewarganegaraan International Journal of Educational Research and Social Sciences (IJERSC) CENDEKIA : Jurnal Ilmu Pengetahuan MANAJERIAL: Jurnal Inovasi Manajemen dan Supervisi Pendidikan International Journal of Education, Social Studies, And Management (IJESSM) Educenter: Jurnal Ilmiah Pendidikan IKA BINA EN PABOLO : PENGABDIAN KEPADA MASYARAKAT Edu Society: Jurnal Pendidikan, Ilmu Sosial dan Pengabdian Kepada Masyarakat Jurnal Penelitian Ilmu Pendidikan Indonesia TOFEDU: The Future of Education Journal Journal of Innovative and Creativity EDUCENTER JURNAL PENDIDIKAN
Harahap, Amin
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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PERAN MANAJEMEN SUMBER DAYA MANUSIA (MSDM) “SISTEM REKRUTMEN, SELEKSI, KOMPETENSI DAN PELATIHAN” TERHADAP KEUNGGULAN KOMPETITIF Anwar, Chairul; Bunga, Sri; Repal, Joni; Harahap, Amin
CENDEKIA: Jurnal Ilmu Pengetahuan Vol. 5 No. 2 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/cendekia.v5i2.6111

Abstract

In the era of globalization and increasingly fierce business competition, organizations are required to manage their human resources strategically to achieve competitive advantage. This study aims to analyze the role of recruitment, selection, competency development, and training systems within Human Resource Management (HRM) in enhancing organizational competitiveness. The research method used is a literature review with a descriptive and exploratory approach, analyzing ten relevant scientific articles from both national and international journals. The findings indicate that an effective, objective, and competency-based recruitment and selection system helps organizations acquire suitable candidates aligned with their values and needs. Furthermore, structured and continuous training and competency development significantly improve employee productivity, loyalty, and adaptability. These findings are supported by various national and international studies consistently showing a positive correlation between effective HRM practices and increased organizational competitiveness. An integrated HRM strategy not only enhances individual performance but also creates organizational value that is difficult for competitors to replicate. Therefore, recruitment, selection, training, and competency development systems should not merely be seen as administrative functions, but as strategic investments that play a vital role in achieving long-term competitive advantage. This study provides theoretical and practical contributions for organizations in designing adaptive and result-oriented HRM policies and practices. ABSTRAK Dalam era globalisasi dan persaingan bisnis yang semakin kompetitif, organisasi dituntut untuk mengelola sumber daya manusianya secara strategis guna mencapai keunggulan kompetitif. Penelitian ini bertujuan untuk menganalisis peran sistem rekrutmen, seleksi, pengembangan kompetensi, dan pelatihan dalam manajemen sumber daya manusia (MSDM) terhadap pencapaian keunggulan kompetitif organisasi. Metode yang digunakan adalah studi pustaka dengan pendekatan deskriptif dan eksploratif terhadap sepuluh artikel ilmiah dari jurnal nasional dan internasional yang relevan. Hasil kajian menunjukkan bahwa sistem rekrutmen dan seleksi yang efektif, objektif, dan berbasis kompetensi mampu menjaring kandidat yang tepat sesuai kebutuhan organisasi. Selanjutnya, pelatihan yang berkelanjutan serta pengembangan kompetensi yang terstruktur terbukti meningkatkan produktivitas, loyalitas, dan adaptabilitas karyawan. Temuan ini diperkuat oleh berbagai penelitian, baik nasional maupun internasional, yang secara konsisten menunjukkan adanya korelasi positif antara praktik MSDM yang efektif dan peningkatan daya saing perusahaan. Strategi MSDM yang terintegrasi tidak hanya meningkatkan kinerja individu, tetapi juga menciptakan nilai tambah organisasi yang sulit ditiru pesaing. Oleh karena itu, sistem rekrutmen, seleksi, pelatihan, dan pengembangan kompetensi bukan sekadar fungsi administratif, melainkan merupakan investasi strategis yang berperan penting dalam pencapaian keunggulan kompetitif jangka panjang. Penelitian ini memberikan kontribusi teoritis dan praktis bagi organisasi dalam merancang kebijakan dan implementasi MSDM yang adaptif dan berorientasi hasil.
Peningkatan Minat Belajar Matematika melalui Model Pembelajaran Self-Directed Learning pada Siswa Kelas XI Hisbullah, Wahab; Harahap, Nurlina Ariani; Harahap, Amin
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i2.18367

Abstract

Minat belajar merupakan salah satu masalah yang sering ditemukan di dalam proses belajar mengajar terutama minat belajar matematika. Minat belajar matematika menjadi objek yang sangat menarik untuk teliti dan dikembangkan sehingga dapat mencapai tujuan pembelajaran yang diharapkan. Menggunakan model pembelajaran yang tepat dapat meningkatkan minat belajar terutama minat belajar matematika. Dalam penelitian ini peneliti menggunakan model pembelajaran Self-Directed Learning untuk meningkatkan minat belajar matematika yang dilakukan di kelas XI Akuntansi dan XI TKJ SMK Swasta Az-Zahra Sonomartani. Adapun tujuan penelitian ini yaitu untuk mengetahui apakah ada peningkatan minat belajar matematika setelah menggunakan model pembelajaran Self-Directed Learning. Peneliti menggunakan metode penelitian kuantitatif dengan jenis penelitian quasi eksperimen. Berdasarkan hasil penelitian yang dilakukan di kelas XI Akuntansi dan XI TKJ SMK Swasta Az-Zahra Sonomartani bahwa hasil minat belajar matematika mereka yang diukur dengan instrumen penelitian yaitu lembar angket menunjukkan bahwa tingkat rata-rata minat belajar mereka dikategorikan cukup yaitu sebesar 71%-75% dan setelah diberi perlakuan menggunakan model pembelajaran Self-Directed Learning tingkat rata-rata minat belajar meningkat menjadi 79%-84%.
Pengaruh Kecerdasan Intra Personal dan Partisipasi Aktif Siswa SMP N 1 Rantau Selatan Terhadap Prestasi Belajar Matematika Hazriani, Hazriani; harahap, Amin; harahap , Nurlina Ariani
Jurnal Penelitian Ilmu Pendidikan Indonesia Vol. 3 No. 2 (2024): Volume 3 No 2
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpion.v3i2.294

Abstract

Penelitian ini bertujuan untuk menyelidiki pengaruh kecerdasan intra personal dan keterlibatan aktif siswa dalam mencapai prestasi belajar matematika di SMP N 1 Rantau Selatan. Metode kuantitatif dengan pendekatan korelasional digunakan, dan informasi diperoleh melalui penggunaan kuesioner dan melalui pengamatan langsung terhadap siswa. Hasil analisis menunjukkan adanya korelasi positif antara kecerdasan intra personal siswa, partisipasi aktif, dan prestasi belajar matematika. Regresi linier berganda mengungkapkan bahwa kecerdasan intra personal dan partisipasi aktif siswa bersama-sama dapat memprediksi prestasi belajar matematika. Temuan ini memiliki implikasi praktis untuk pengembangan strategi pembelajaran yang mempertimbangkan aspek kecerdasan intra personal dan meningkatkan partisipasi aktif siswa. Oleh karena itu, disarankan untuk mengintegrasikan program pembinaan kecerdasan intra personal dan merancang metode pembelajaran yang mendorong partisipasi siswa secara aktif. Langkah-langkah ini diharapkan dapat meningkatkan kualitas pembelajaran matematika di SMP N 1 Rantau Selatan.
Pengaruh Model Pembelajaran Problem Based Learning Terhadap Hasil Belajar Matematika Siswa Smp Negeri 1 Rantau Selatan Siregar, Khofifah Indriyan; Harahap, Amin; Hasibuan, Lily Rohanita
Jurnal Penelitian Ilmu Pendidikan Indonesia Vol. 3 No. 2 (2024): Volume 3 No 2
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpion.v3i2.295

Abstract

This study aims to investigate the effectiveness of the Problem Based Learning approach in overcoming mathematics learning difficulties in high school students The approach in this study uses a quantitative method through quasi-experimental experiments. The research participants consisted of 65 individuals who were samples from class VII SMP NEGERI 1 RANTAU SELATAN in the 2023–2024 academic year. It consists of four classes: two classes VII A, B, and two classes VII C, then there is There were interviews with participants from classes VII A and VII B, students were divided into two groups: an experimental group that used the PBL approach and a control group that used conventional learning methodsData were collected through math tests given before and after treatment. Data analysis was carried out using a t-test to measure the difference in pretest and post test scores between the two groups.
The influence of the problem based learning model on students' mathematical problem solving ability in mathematical induction material Syara, Lili; Habibah Pasaribu , Laili; Harahap, Amin
Educenter : Jurnal Ilmiah Pendidikan Vol. 3 No. 1 (2024): Educenter: Jurnal Ilmiah Pendidikan
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/educenter.v3i1.1112

Abstract

The problem of low problem solving abilities of students in Mathematics subjects are due to the learning process in the classroom only directed at students' ability to memorize information, more lots of listening and writing, memorizing formulas and working on problems with formulas that have been memorized so that students have difficulty solving problems when finding differences from the example questions. This research aims to determine the use of the Problem Based Learning learning model and the problem solving abilities of class XI students at Muhamadiyah 10 Rantauprapat Private High School. This research is a type of quantitative research, with a research population of 120 students from 4 classes. Data collection techniques in this research used two methods, namely observation of teacher activities and tests in the form of descriptions. With research results tcount is greater than ttable. So it can be concluded that the Problem Based Learning (PBL) learning model has a very significant influence on the mathematical problem solving abilities of students in class This is strengthened because the Problem Based Learning (PBL) model has advantages and goals that are able to encourage students to learn more effectively because they focus on problem solving and students are able to develop themselves.
Principal Leadership Strategies in Improving Teacher Performance: A Literature Review Hasibuan, Dina Sari; Hasibuan, Ifdlol Amarullah; Ulfah, Mariam; Siregar, Julmahdi; Harahap, Amin
The Future of Education Journal Vol 5 No 1 (2026)
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Yayasan Pendidikan Tumpuan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61445/tofedu.v5i1.1645

Abstract

School principal leadership plays a strategic role in improving teacher performance as one of the key determinants of educational quality in schools. Principals function not only as administrative managers but also as instructional leaders who guide, supervise, and motivate teachers. This study aims to analyze principal leadership strategies in improving teacher performance based on findings from previous studies. The research employed a literature review design by analyzing relevant Indonesian national journal articles published within the last ten years. Data were collected through a systematic search using Google Scholar with keywords related to principal leadership and teacher performance. The data were analyzed using a qualitative descriptive approach through data reduction, thematic categorization, and synthesis of research findings. The results indicate that effective principal leadership strategies in improving teacher performance include academic supervision, enhancement of teacher motivation and discipline, exemplary leadership, participative leadership, effective interpersonal communication, and the strengthening of school culture. These strategies are interconnected and should be implemented in an integrated manner to enhance teacher professionalism and sustainable performance improvement. This study is expected to serve as a reference for school principals and educational stakeholders in developing effective leadership practices in schools.
Strategi Kepemimpinan Kepala Sekolah dalam Mengoptimalkan Pembelajaran untuk Meningkatkan Profesionalitas Guru SDN 11 Bilah Hulu Labuhanbatu Hairani, Ummy; Nomy, Aldyani Remadhina; Feri, Jonny; Manurung, Chairul; Harahap, Amin
EDU SOCIETY: JURNAL PENDIDIKAN, ILMU SOSIAL DAN PENGABDIAN KEPADA MASYARAKAT Vol. 5 No. 3 (2025): Oktober 2025 - Januari 2026
Publisher : Association of Islamic Education Managers (Permapendis) Indonesia, North Sumatra Province

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56832/edu.v5i3.2715

Abstract

Penelitian ini bertujuan untuk menganalisis strategi kepemimpinan kepala sekolah SDN 11 Bilah Hulu dalam mengoptimalkan pembelajaran guna meningkatkan profesionalitas guru serta untuk mengidentifikasi faktor-faktor yang mendukung dan menghambat implementasinya. Penelitian menggunakan pendekatan kualitatif deskriptif dengan teknik pengumpulan data melalui wawancara mendalam terhadap Kepala Sekolah, Koordinator Kurikulum, dan guru-guru yang terlibat langsung dalam kegiatan pembelajaran, serta observasi partisipatif. Data sekunder diperoleh dari literatur, dokumen sekolah, jurnal, dan peraturan pendidikan yang relevan. Hasil penelitian menunjukkan bahwa kepala sekolah menerapkan strategi kepemimpinan yang terpadu, meliputi pengembangan kompetensi guru melalui pelatihan, workshop, dan bimbingan langsung; penciptaan budaya sekolah yang kondusif, kolaboratif, dan inovatif; serta penerapan dan pemantauan pembelajaran yang efektif dengan pendekatan partisipatif dan penggunaan metode inovatif. Strategi-strategi ini meningkatkan profesionalitas guru, kepercayaan diri, motivasi, dan kualitas pembelajaran di kelas. Selain itu, implementasi strategi dipengaruhi oleh faktor pendukung seperti kerja sama guru, budaya sekolah yang positif, ketersediaan pelatihan, serta motivasi guru, dan faktor penghambat seperti keterbatasan fasilitas, adaptasi terhadap metode baru, dan kendala waktu. Meskipun terdapat hambatan, dukungan kepala sekolah dan kolaborasi antar guru mampu meminimalkan dampak negatif sehingga strategi kepemimpinan tetap berjalan efektif.
Analysis of Category Theory as a General Framework for Algebraic and Applied Structures Nuraisah, Siti; Harahap, Amin; Harahap, Nurlina
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 4 (2026): April
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i4.7998

Abstract

Category theory is one of the important frameworks in modern mathematics because it is able to unify various algebraic concepts and structures. In addition, this theory has been widely applied in many other fields. This article aims to provide a comprehensive discussion of the role of category theory as a universal language that not only explains relationships among mathematical objects, but also serves as a methodological foundation for computer science, logic, and data science. This study employs a qualitative approach through a literature review by examining key concepts such as objects, morphisms, functors, adjunctions, and monads, as well as their roles in bridging abstract theory and practical applications. The results of the literature review indicate that category theory is capable of simplifying the complexity of algebraic structures through a higher level of abstraction. Through this approach, different branches of mathematics that were previously fragmented can be interconnected. Furthermore, category theory has been widely used in functional programming, the development of logic-based systems, and data flow modeling, making it highly relevant in the digital era. The research approach involves literature review, content analysis, and triangulation to ensure data validity, with the implication that category theory can enrich teaching and research in the field of algebra.
The Effect of Contextual Digital Teaching Materials and Creativity on Students’ Scientific Literacy in the Digital Era Yanti Nainggolan, Irma; Hasibuan, Lily Rohanita; Harahap, Amin
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 4 (2026): April
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i4.8042

Abstract

Students’ scientific literacy remains low due to the continued use of conventional learning methods that are less contextual and interactive. This study aims to determine the effect of context-based and creative digital teaching materials on students’ scientific literacy. A quasi-experimental pretest-posttest control group design was used involving 60 seventh-grade students divided into an experimental class (n = 30) and a control class (n = 30). The instruments included scientific literacy tests, questionnaires, and observation sheets. The results showed that the average posttest score of the experimental class (30.03) was significantly higher than that of the control class (24.50), with t(58) = 2.38, p = 0.021. The N-Gain value of the experimental class was 0.21 (low category), which was higher than the control class at 0.004 (low category). These findings indicate that context-based and creative digital teaching materials are effective in improving students’ scientific literacy, although the level of improvement remains low.
Pengaruh Mode Pembelajaran Inquiry Cooperation Berbantuan Geogebra terhadap Kemampuan Berpikir Kritis Siswa Maisarah, Leila; Hasibuan, Lily Rohanita; Harahap, Amin
Jurnal Pendidikan Matematika : Judika Education Vol. 9 No. 2 (2026): Jurnal Pendidikan Matematika:Judika Education
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/ah4v0r84

Abstract

This study aims to analyze the effect of implementing the Inquiry Cooperation assisted by GeoGebra software on students’ mathematical critical thinking skills. This research employed a quantitative approach using a quasi-experimental method with a pretest–posttest control group design. The sample consisted of 60 students who were divided into an experimental group and a control group. The research instrument was a multiple-choice test consisting of 15 items that had met the criteria of validity and reliability. Data were analyzed using both descriptive and inferential statistics, including normality tests, homogeneity tests, paired sample t-tests, independent sample t-tests, and N-Gain analysis. The results showed that the average score of students’ mathematical critical thinking skills in the experimental group increased from 6.60 to 7.67, while the control group showed only a minimal improvement. The independent sample t-test yielded a significance value of 0.006 (< 0.05), indicating a significant difference between the two groups. Furthermore, the experimental group achieved an N-Gain score of 56.26% (moderately effective category), whereas the control group obtained 15.20% (ineffective category). Therefore, it can be concluded that the implementation of the Inquiry Cooperation Model assisted by GeoGebra has a positive and more.   Keywords: Mathematical Critical Thinking, GeoGebra, Inquiry Cooperation Model.
Co-Authors Abduh, Jamaluddin Adella, Priti Afrilia, Vellin Dwi Ahmad, Afnida Rahma Alvionita, Icha Ariady, M. Saddam Astanti, Arinda BUNGA, SRI Chairul Anwar Daulay, Ahmad Sadikin Feri, Jonny Fikriah, Anni Zhofaul Gunawan Gunawan Gurusinga, Yasma Ariamma Br Habibah Pasaribu , Laili Hairani, Ummy harahap , Nurlina Ariani Harahap, Nurlina Harahap, Nurlina Ariani Harahap, Siti Amroh Hasibuan, Dina Sari Hasibuan, Gabe Rohana Hasibuan, Ifdlol Amarullah Hasibuan, Lily Rohanita Hasibuan, Rosmidah Hazriani, Hazriani Hijrah, Nurul Hisbullah, Wahab Hotmauli Situmorang, Hotmauli Hrp, Nurlina Ariani Hutajulu, Jovin Hutapea, Maulin Elisabet Laurance Ibnu Hajar Julyanti, Eva Laia, Valentinus Operianus Lestari, Anggun Magriani Nasution, Dina Maisarah, Leila Malau, Roslin Manja, Aisyah Putri Manurung, Chairul Manurung, Safaruddin Milfayetti, Sri Munthe, Desi Yanti Nasution, Juwita Andriani Nasution, Siska Emilia Sari Ningsih, Wanda Suhari NOMY, ALDYANI REMADHINA Nst, Jamaluddin Abduh Nuraisyah Nuraisyah Nurwijayanti Pasaribu, Laili Habibah Patwal, Anurada Putra, Darpansyah Rahmadani, Laila RAMBE, MAHADI KESUMA Repal, Joni Ritonga, Pirman Mulatua Ritonga, Sahrona Rosmiaty, Rini Rudianto Rudianto Sabil, Ibnu Safitri, Islamiani Sapriyani, Sapriyani Saragih, Eva Sari, Indri Kumala Sary, Irma Silalahi, Linda Laswati Silvia, Novi Simanullang, Diva Karina Sinulingga, Sintya Lestari Siregar, Faisal Efendi Siregar, Julmahdi Siregar, Khofifah Indriyan Siregar, Lenny Rotua Masriany Siregar, Sakinah Ubudiyah Siti Nuraisah, Siti Suciati, Sriani Suripto Suripto Susrini, Susrini Syara, Lili Tamba, Hergustison Tanjung, Rahmat Syahputra Toni, Toni Ulfah, Mariam Wijaya, Aland Yanti Nainggolan, Irma Zahra, Elvita Zuhairi, Zuhairi