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All Journal JSME MIPA UNIMA Jurnal Pendidikan Matematika dan IPA EDU-MAT: Jurnal Pendidikan Matematika JURNAL PENDIDIKAN TAMBUSAI Jurnal Cendekia : Jurnal Pendidikan Matematika Journal on Education Jurnal Review Pendidikan dan Pengajaran (JRPP) de Fermat : Jurnal Pendidikan Matematika SOSCIED Jurnal Sosial Humaniora Sigli Frontiers Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika INTELEKTIUM Jurnal Pendidikan Matematika Unpatti Jurnal Riset dan Inovasi Pembelajaran MARISEKOLA: Jurnal Matematika Riset Edukasi dan Kolaborasi Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Dharmas Education Journal (DE_Journal) Kognitif: Jurnal Riset HOTS Pendidikan Matematika ADIBA: Journal of Education Education Journal: General and Specific Research Jurnal Pendidikan Terapan Simpati: Jurnal Penelitian Pendidikan dan Bahasa Lemma: Letters of Mathematics Education Khirani: Jurnal Pendidikan Anak Usia Dini Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Innovative and Creativity Jurnal Pendidikan, Bahasa dan Budaya Polygon: Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam Jurnal Cendekia Ilmiah Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam Jurnal Pendidikan dan Keguruan Tarbiyatul Ilmu (Jurnal Kajian Pendidikan) Jurnal Kendali Teknik dan Sains
Vivian E. Regar
Program Studi Pendidikan Matematika Universitas Negeri Manado, Manado, Indonesia
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Welch-Powell Algorithm Implementation In Compiling Lecture Schedules In The Mathematics Education Study Program, Manado State University Fernando Febrianto Kawatu; James U. L. Mangobi; Vivian E. Regar
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April: Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.13

Abstract

This study aims to compile a Lecture Schedule at the Mathematics Education Study Program, Faculty of Mathematics Natural and Earth Sciences Manado State University using the Welch-Powell Algorithm. The scheduling of lectures at the Mathematics Education Study Program, Faculty of Mathematics and Natural Sciences, Manado State University often collides because several lecturers have different numbers of courses and credit rights. This it can be seen that the method of preparing lectures used is still not effective and efficient. Preparation of a course schedule is an action taken so that time can be managed as effectively and efficiently as possible. The preparation of this lecture schedule will use a simple graph with input data, namely the number of lecturers, number of courses, credits for each course, days used in the week, time slots and number of classes used. After getting the input data, point coloring is carried out in coloring on the graph using the Welch-Powell Algorithm assisted by MATLAB software to get an effective and efficient class schedule. Lecture Schedule Arrangement in the Mathematics Education Study Program, Department of Mathematics, Faculty of Mathematics, Natural and Earth Sciences, Manado State University using the Welch-Powell Algorithm produces a schedule that does not collide, so that the Welch-Powell Algorithm can help prepare an effective and efficient class schedule .
THE EFFECTIVENESS OF THE TEACHING AT THE RIGHT LEVEL (TARL) APPROACH ON LEARNING OUTCOMES IN THE TOPIC OF RELATIONS AND FUNCTIONS AMONG GRADE VIII STUDENTS Edy, Christelita Chelcilia; Tumalun, Nicky Kurnia; Regar, Vivian Eleonora
Jurnal Pendidikan Matematika dan IPA Vol. 17 No. 2 (2026): May 2026
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpmipa.v17i2.110755

Abstract

This research aimed to evaluate the effectiveness of the Teaching at the Right Level (TaRL) approach on student learning outcomes regarding relations and functions. This experimental study employed a pretest-posttest control group design at State Junior High School 5 Manado. The experimental class was taught using the TaRL approach, while the control class received Direct Instruction. Results indicated that the average learning outcomes of the experimental class (81.80) significantly outperformed the control class (71.48). Hypothesis testing via t-test yielded tcount = 3.619 > ttabel = 2.011 at a significance level of 0.05, confirming significant difference. Furthermore, TaRL met all effectiveness criteria: 1) the average score exceeded the learning objective attainment threshold (KKTP) of 75;2) classical mastery was achieved; 3) student responses to the learning process were positive. In conclusion, the TaRL approach is effective in improving student learning outcomes for relations and functions material among eighth-grade students.
A Systematic Literature Review of Mathematical Concepts in Hill Cipher-Based Cryptography for Mathematics Education Auriel A. Y. Tuerah; Vivian E. Regar; Philoteus E. A. Tuerah; Regina Pakpahan
Jurnal Pendidikan Terapan Vol 4, No 3 July (2026)
Publisher : Sakura Digital Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61255/jupiter.v4i3.1337

Abstract

Purpose: This study aims to systematically review the mathematical concepts represented in Hill Cipher-based cryptography and examine their applications and implications for mathematics education across different educational levels. Methods: A systematic literature review was conducted following the PRISMA 2020 guidelines. Literature searches were performed across five academic databases, yielding 1,247 initial records. Following identification, screening, eligibility assessment, and quality appraisal, 14 primary studies published between 2020 and 2023 were included for qualitative thematic synthesis. Findings: The review identified modular arithmetic, matrix multiplication, and matrix inversion as the predominant mathematical concepts represented in the reviewed studies. Modular arithmetic appeared in all 14 studies and was primarily associated with secondary-level mathematics, whereas matrix operations were predominantly implemented in undergraduate contexts. The reviewed studies reported educational applications including mathematics learning media, simulation-based learning, and project-based learning. However, only a limited number of studies explicitly investigated classroom implementation, while most focused on algorithmic development and technical applications. In addition, the available evidence was dominated by studies conducted in Indonesia, limiting the broader generalizability of the findings. Research Implications: This review provides a conceptual synthesis that connects mathematical concepts, classical cryptographic algorithms, and their potential educational applications. The findings may inform mathematics educators, teacher educators, and curriculum developers in designing contextual mathematics learning activities while also highlighting the need for more classroom-based empirical studies across diverse educational settings. Originality: Unlike previous reviews emphasizing cryptographic performance and algorithm development, this study synthesizes the educational dimensions of Hill Cipher-based cryptography by mapping the relationships among mathematical concepts, instructional applications, and research gaps. The review contributes an evidence-based conceptual framework to support future research and curriculum development in mathematics education.
Analisis Kesalahan Siswa Dalam Menyelesaikan Soal Matriks Pada Kelas XI SMA Negeri 2 Tondano Dollydia Mart Sasauw; James U. L. Mangobi; Vivian E. Regar
Jurnal Pendidikan, Bahasa dan Budaya Vol. 1 No. 4 (2022): Desember: Jurnal Pendidikan, Bahasa dan Budaya
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jpbb.v1i1.838

Abstract

Tujuan penelitian ini adalah untuk mengetahui kesalahan yang dilakukan siswa dalam menyelesaikan soal matriks pada kelas XI SMA Negeri 2 Tondano di mulai dari yang berkemampuan tinggi, berkemampuan sedang, dan berkemampuan rendah di lihat berdasarkan kesalahan konsep, prinsip dan operasi sebagai acuan belajar. Adapun jenis penelitian ini adalah penelitian Deskriptif Kualitatif dengan menggunakan metode Triangulasi di mana instrumen utamanya adalah peneliti itu sendiri di sertai dengan instrumen pelengkap yang terdiri dari (tes 3 butir soal dan wawancara). Penelitian ini dilaksanakan di SMA Negeri 2 Tondano, yang berada di Kabupaten Minahasa, Provinsi Sulawesi Utara, pada semester genap tahun pelajaran 2022/2023. Subjek penelitian ini adalah siswa kelas XI SMA dan telah mempelajari materi matriks. Dari penelitian ini, diperoleh hasil yaitu siswa yang berkemampuan tinggi (T) hanya memiliki tingkat kesalahan yang kecil berupa kesalahan operasi pada 1 soal saja (kurang teliti), siswa yang berkemampuan sedang (S) memiliki kesalahan konsep dan prinsip sedangkan siswa yang berkemampuan rendah (R) memiliki banyak kesalahan konsep, prinsip dan juga operasi.
STUDI PERBEDAAN MODEL PROJECT BASED LEARNING BERBASIS PROYEK MATH ON THE STREET DAN PEMBELAJARAN LANGSUNG PADA HASIL BELAJAR MATEMATIKA SISWA MATERI PERBANDINGAN Walean, Virgina Vreisy; Regar, Vivian Eleonara; Pulukadang, Rosiah Juliati
De Fermat : Jurnal Pendidikan Matematika Vol. 9 No. 1 (2026)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/defermat.v9i1.2493

Abstract

This study aims to compare students’ learning outcomes on ratio material through two different models, namely the Project Based Learning model and Direct Instruction. The research was conducted at SMP Negeri 1 Modoinding using a quasi-experimental design with a Pretest Posttest control group model. The PjBL class as the experimental group followed project-based learning involving field observation activities, while the Direct Instruction class as the control group received learning through teacher explanations and practice exercises. The research instrument was a learning outcomes test administered before and after the treatment. The data were analyzed through normality testing, homogeneity testing, and a t-test to determine whether there was a significant difference between the two classes. The results showed that the mean Posttest score of the experimental class (83.72) was significantly higher than the control class (76.08), with t-value = 3.958 > t-table = 2.011 (α = 0.05). Students who were involved in field projects appeared to better understand the concept of ratios because they processed the data they collected themselves, so that the learning process felt closer to real-life situations. These findings indicate that the implementation of PjBL based on the Math On The Street project has a positive effect on students’ learning outcomes, especially on ratio material, and can be an alternative form of learning that is more meaningful compared to the Direct Instruction model
PENGEMBANGAN MEDIA PEMBELAJARAN MATEMATIKA BERBASIS WEB GOOGLE SITES PADA MATERI LINGKARAN SMP KELAS VII Kjallen Martha Maradia; Vivian Eleonora Regar; Ermita Ermita
JURNAL LEMMA Vol 12, No 2 (2026): Lemma: Letters of Mathematics Education
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/jl.2026.v12i2.11314

Abstract

Penggunaan teknologi berperan penting dalam mendukung proses pembelajaran serta membantu peserta didik memahami konsep matematika secara lebih visual dan interaktif. Penggunaan media pembelajaran menjadi salah satu unsur penting yang perlu diperhatikan dalam kegiatan pembelajaran. Media pembelajaran berbasis teknologi pada penelitian ini dikembangkan menggunakan platform web Google Sites pada materi lingkaran SMP kelas VII. Tujuan penelitian ini adalah untuk mengembangkan media pembelajaran berdasarkan kevalidan, kepraktisan, dan keefektifan. Penelitian ini menggunakan jenis Research and Development (R&D) dengan model ADDIE (Analysis, Design, Development, Implementation, Evaluation). Tingkat kevalidan yang diperoleh dari ahli media mencapai 86% dan dari ahli materi sebesar 87,1%, yang berarti tergolong sangat valid. Dalam hal kepraktisan, media pembelajaran ini dinilai sangat praktis dengan persentase 90%. Aspek keefektifan juga menunjukkan persentase 84% yang berada pada kriteria sangat efektif.
Co-Authors A. Pesik Aaltje S. Pangemanan Adinda Aprillia Makaluas Alvian J. Woran Ananda F. Dengah Andra Christine Tombokan Andreas Pandeirot Anetha L.F. Tilaar Annisa Ibrahim Araroh, Asni Auriel A. Y. Tuerah Ayu F. Nikiulu Banne, Rahmat Saleh R. R. L Bawembang, Mila Ch. Bulegalangi, Silfia V. Carina Olita Selin Tulandi Dandapa, Mariani Deborah K. M. Mudami Deliska Takalao Dengah, Ananda F. Denis Joshua Tamba Derel Filandy Kaunang Derel Filandy Kaunang Desy Kristin Moonik Desyane Natalia Mekar Pania Deyvita Tanor Dollydia Mart Sasauw Edy, Christelita Chelcilia Elisabet Angelina Walewangko Enjel Watania Enjel Watania Erica T. C. Pakpahan Ermita Ermita Esra Rombeallo Eunike Gloriya Talantu Falentino Polii Fernando Febrianto Kawatu Fernando Febrianto Kawatu Gladies Tambajong Hamid, Hiskia Israel Hariyati Pantow Heatubun, George R. Herdiyansyah Dako Ichdar Domu Imanuel Supit Watung Jainab Devira Kumontoy James U.L. Mangobi Jeklin Nadia Legi Jhon R Wenas Joan Shelomikha Mawikere Jorie Emor Jorry F Monoarfa Kambodji, Axellino Kasenda, Monica P. Kembau, Erika Kastel Kenny E. F. Bawoleh Kesmeralda Wiwin Kjallen Martha Maradia Kodongan, Gidieon Romario Ladiku, Muhamad Aghi Lakumani, Novlin A. Langi, Rafael Kaleb Lauale, Arthur Zefanya Lefia N. Kalengkongan Lendehiang, Jenny Lengkong, Yuliana Olivia Lumi, Erika Fira Lunemo, Mervi Maghfira Gobel Makitalentu, Christiniati Manalu, Roito Brigita Mangudis, Ivana Christin Maningide, Meivilia Inke Manoka, Greiselah Maria A. Maluwu Marvel G. Maukar Maudy Amalia Bin Eli Michella Angelie Pajow Mk, Chetsi Rafelin Patrisia Mokalu, Melisa P. mokosolang, efraim Monica Pricilia Kapele Murni Sulistyaningsih Musa, Reska Novarni Natalia C. Tumbel Navel Oktaviandy Mangelep Nedelan, Selviani S. D. Nicky Kurnia Tumalun Noftalia N Assa Nua, Vanesa Putri Jeivika Oltje Telly Sambuaga Pajow, Michella Angelie Pangalila, Marthen Semuel Toar Patricia V. J. Runtu Philotheus E. A. Tuerah Pianusa, Rivains S. Pontomudis, Hary Pusut, Talita Putri Dwi Hardini Regina N Pakpahan Rengkuan, Cikita Repi, Johanis C. F. Reynhart Excel Soentpiet Rifdania Deviany Lohonauman Rine Ervine Margaretha Supit Rivaldy P.Kembau Robby J. Wenas Rori, Kevin G. Rosauli Novalina Samosir Rosiah J. Pulukadang Rumajar, Tarmisia Sandrina Helly Runtu, Agnes Santje M. Salajang Sasra Sugeha Sawotong, Olivie Selfie L. Kumesan Somba, Chealsea Medeline Sumendap, Yohana F. Susi Aryani Manangin Sylvia Jane Annatje Sumarauw Talita Pusut Tammu, Thomas Tangel, Putra Fraditya Samuel Tarigan, Eka F. Br Toar, Yisreel Yoel Tuerah, Melisa Tumbel, Natalia C. Vellin F.E Londo Via Ditia Harinda Victor R. Sulangi victor Sulangi Walean, Virgina Vreisy Wenas, Jhon Robby Wenas, John R. Wenas, John Robby Yunike Manopo