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All Journal Paradikma: Jurnal Pendidikan Matematika Journal on Mathematics Education (JME) Journal on Mathematics Education (JME) Al Ishlah Jurnal Pendidikan EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA JTAM (Jurnal Teori dan Aplikasi Matematika) JURNAL PENDIDIKAN TAMBUSAI Journal on Education Jurnal Ilmu Kepolisian Jurnal Review Pendidikan dan Pengajaran (JRPP) Mandalika Mathematics and Educations Journal Jurnal Pengabdian kepada Masyarakat Nusantara Mosharafa: Jurnal Pendidikan Matematika Jurnal Ilmiah Wahana Pendidikan YURISDIKSI : Jurnal Wacana Hukum dan Sains SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA NUSRA: Jurnal Penelitian dan Ilmu Pendidikan Journal of Student Research Indonesian Research Journal on Education Innovative: Journal Of Social Science Research Journal of Mathematical Pedagogy (JOMP) Amsir Community Service Journal J-CEKI Jurnal Pendidikan dan Sastra Inggris
Kairuddin .
Universitas Negeri Medan
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Pelatihan dan Penguatan Persiapan Kegiatan Olimpiade Matematika Dalam Penguatan Kemampuan Berfikir Pada Ekstrakurikuler Matematika Di Sma Negeri 1 Deli Tua Siregar, Fransisco Dinata; Simbolon, Iwan Martua; Sianipar, Tabitha Gabriela; ., Kairuddin
Jurnal Ilmiah Wahana Pendidikan Vol 12 No 1.A (2026): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to describe the implementation of training and preparatory activities for the Mathematics Olympiad as an effort to enhance students’ logical and systematic thinking through extracurricular activities at SMA Negeri 1 Deli Tua. The training was carried out using diagnostic teaching and intensive problem-solving drills, supported by inquiry-based learning strategies. Conducted over three days, the program involved 30 students selected based on prior performance and interest in mathematics. Results indicate a significant improvement in students’ average scores, rising from an initial 36.5 to approach the Minimum Mastery Criteria (KKM) of 75. Additionally, 80% of participants reported increased confidence and readiness to face mathematical competitions. The findings suggest that structured extracurricular mathematics programs play a vital role in fostering critical thinking skills and preparing students for high-level academic challenges such as the Mathematics Olympiad.
Analisis Kesalahan dan Kendala Siswa/i SMA Citra Harapan Percut dalam Menyelesaikan Sistem Persamaan Linear Dua Variabel (SPLDV) serta Solusi Pembelajarannya Kairuddin Kairuddin; Naftali Marbun; Renata Siburian; Jona Mikhael Hutagaol; Artorito Sitorus; Reva Lenita Girsang; Mirna Wulan Sari Sianipar
Jurnal Pendidikan dan Sastra Inggris Vol. 5 No. 3 (2025): Jurnal Pendidikan dan Sastra Inggris
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jupensi.v5i3.6089

Abstract

This study aims to explore in depth the errors and obstacles experienced by students in learning the System of Linear Equations in Two Variables (SLSV), and to provide strategic solutions to improve their understanding and skills. SLSV is a fundamental topic that is very important for developing logical and analytical thinking skills. However, various studies show that students, especially at the vocational high school level, still face significant challenges, particularly when converting story problems into mathematical models, formulating strategies, and being thorough in completing the process. This study applies a qualitative descriptive method involving 25 students from grade X of SMK Swasta Citra Harapan located in Deli Serdang Regency. Primary data were collected through written tests (pre-test and post-test) and interviews with mathematics teachers. The findings of this study indicate that students' initial understanding of SLSV is still minimal, as reflected in the low percentage of correct answers in the pre-test (Problem 1: 32%; Problem 2: 48%). The most frequent errors made by students include the inability to convert story problems into mathematical models, errors in the elimination or substitution process, and errors in algebraic operations. The proposed approach is to implement integrated learning strategies, including Problem-Based Learning (PBL) to reinforce concepts, the use of interactive media to provide motivation, and the habit of systematically recording steps through the Think Talk Write (TTW) approach to improve procedural skills and the accuracy of answers. This study concludes that successful mastery of SPLDV requires a comprehensive strategy that combines conceptual, procedural, and motivational aspects.
Co-Authors A, Indah Abil Mansyur, Abil Al Luthfi, Muhammad Rafif Andriani, Anjelika Anshari, Fazril Anshari Anugerah Chrisjon Natalis Simanjuntak Artorito Sitorus Asmin Asmin, Asmin Asmin Panjaitan Astuti, Yunisyia Puji Avorika, Damar Cinta Azis, Muh Alfikram Berutu, Jhosua Budi Halomoan Siregar Bunda, Monika Sulistia Permata Damanik, Naila Ghinaya DAMANIK, THERESIA Darmawijoyo, Darmawijoyo Desiana, Rifka Fadilla, Nia Harahap, Qamaruddin Fadhilah Hasratuddin Hasratuddin Hutagalung, Chindy Fransiska Hutapea, Yonata Jona Mikhael Hutagaol Kasim, Aksah Kembaren, Shaerleen Naviry Br Letron, Letron Manalu, Jhonatan Manik, Sola Gracia Manurung, Hendra Cahyadi Manurung, Pera Masita, Nurul Mirna Wulan Sari Sianipar Muh. Akbar Fhad Syahril Muh. Darwis Muhammad Sabir Muhammad Wahyu Yazim Mulyono Mulyono Naftali Marbun Naila Ghinaya Damanik Nainggolan, Gustia Loiusa Nasution, Dhea Amanda Nazhatul Sahima Mohd Yusoff Nidia Lestari Nur Izhma Adzkia Zahra Oktarina, Gita Pane, Sally Mutiara Pasande, Jhon Franklin PENCAWAN, ANDRI PRATAMA Pradityo, Kanaka Wirasana Pransisto, Johamran Prasetya, Muhammad Rafly Putri Andini, Putri Putri, Aulia Eka Rahman, Arief Aulia Renata Siburian Reva Lenita Girsang Rhamadan, Putra Ritonga, Nurul Azizah S, Raysah P. S. Hadi, Muh. Hartarto Sally Mutiara Pane Samosir, Martha Indah Saputra, Iswandy Rani Sianipar, Tabitha Gabriela Sihotang, Harry Marcel Wahyu Simamora, Ronauli Simanjuntak, Anugerah Chrisjon Natalis Simanjuntak, Rosi Ade Putri Simbolon, Iwan Martua Sinaga, Petra Aprina Benedicta Sinaga, Sinta Marintan Sinurat, Putra Paulus Sinurat, Relly Siregar, Dea Athalia Siregar, Fransisco Dinata Siregar, Nur Hasanah Siti Sarah, Siti Sitorus, Grace Elicia Situmorang, Rani Nuldiva Sjam, Muh. Adam Sola Gracia Manik Sunardi Purwanda Supriyadi Supriyadi Tamba, Risna Apriani Tania, Nabilla Syalita Tanjung, July Yanty Tarigan, Marianche Ferbina Br Tarigan, Septi A. Tijjang, Bakhtiar Tinambunan, Indriyani Friska Ttriawan, Agung Wafiq Azizah Br. Sinaga Waniza, Elva Yolandari, Anisa Yunus, Muhammad Kemal