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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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Perbedaan Hasil Belajar Sistem Persamaan Linear Dua Variabel Siswa Ditinjau dari Penerapan Model Pembelajaran Somba, Chealsea Medeline; Mangobi, James U. L.; Regar, Vivian E.
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 8 No 2 (2024): Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 8 Nomor 2 Tahun 2024
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v8i2.2984

Abstract

Dalam fokus pembahasan Persamaan Linear Dua Peubah, studi ini bermaksud untuk mengkaji perbedaan hasil belajar antara murid yang mengikuti pembelajaran dengan metode langsung (DI) dan murid yang mengikuti pembelajaran dengan metode berbasis masalah (PBL). Penelitian ini memakai metode semi-eksploratif dengan melibatkan siswa SMPN 7 Bitung, Sulawesi Utara, yang dibagi menjadi kelompok kontrol (kelas VIII-2) dan kelompok eksperimen (kelas VIII-1) dengan masing-masing 28 siswa. Kelompok kontrol diajarkan dengan model PBL, sedangkan kelompok eksperimen diajarkan dengan model DI. Data dikumpulkan melalui tes hasil belajar (posttest) yang diberikan kepada siswa di kedua kelas. Kedua kelompok memiliki data yang tidak berdistribusi normal saat diuji normalitas data posttest. Uji Mann-Whitney menunjukkan bahwa capaian belajar Kemampuan menyelesaikan Sistem Persamaan Linear Dua Variabel pada siswa yang belajar dengan metode Pembelajaran Berbasis Masalah secara menyeluruh lebih baik dibandingkan siswa yang belajar dengan metode pembelajaran langsung.
Pemahaman Konsep Matematis Siswa dalam Menyelesaikan Soal Cerita Materi Barisan dan Deret Kelas X Musa, Reska Novarni; Monoarfa, Jorry F.; Regar, Vivian E.
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 8 No 2 (2024): Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 8 Nomor 2 Tahun 2024
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v8i2.3031

Abstract

Berdasarkan observasi yang dilaksanakan pada peserta didik di SMA Negeri 2 Tondano, masih banyak ditemukannya masalah yang berhubungan dengan pemahaman konsep matematis. Seperti peserta didik kurang memiliki pemahaman dalam hal menyelesaikan beberapa variasi soal yang berbeda dari contoh soal yang telah diberikan, peserta didik hanya bisa menghafalkan rumus tetapi tidak mengetahui cara mengerjakan soal yang berkaitan dengan rumus tersebut, peserta didik mempunyai kesulitan dalam mengerjakan soal dalam bentuk cerita termasuk dalam materi barisan dan deret, dan kurangnya keberanian peserta didik untuk mengerjakan soal di depan kelas. Penelitian ini bertujuan untuk mengetahui pemahaman suatu konsep matematis peserta didik dalam hal menyelesaikan soal cerita materi Baris dan Deret pada siswa kelas X SMA Negeri 2 Tondano. Subjek penelitian ini yaitu 21 siswa kelas XA di SMA Negeri 2 Tondano. Penelitian ini menggunakan metode deskriptif kualitatif. Instrumen dalam penelitian ini berupa tes tertulis yang terdiri dari 4 soal cerita dan wawancara yang terdiri dari 6 indikator pemahaman konsep matematis. Teknik analisis yang digunakan yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil dari penelitian ini adalah pada tingkat pemahan konsep matematis siswa kategori tinggi terdapat 8 siswa dengan presentase 38%, tingkat pemahaman konsep matematis siswa kategori sedang terdapat 12 siswa dengan presentase 57%, dan tingkat pemahaman konsep matematis siswa kategori rendah terdapat 1 siswa dengan presentase 5%. Maka, dilihat dari nilai rata-rata yang diperoleh siswa, jadi dapat disimpulkan bahwa pemahaman konsep matematis siswa pada penelitian ini berada pada tingkat pemahaman konsep matematis siswa yang di kategorikan sedang.
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERBASIS ETNOMATEMATIKA PADA SISWA KELAS VIII SMP KATOLIK ST. ANTONIUS MANADO Regar, Vivian E.; Lengkong, Yuliana Olivia; Wenas, Jhon Robby
SOSCIED Vol 8 No 2 (2025): SOSCIED - November 2025
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v8i2.1048

Abstract

This research aims to design and develop a learning device in the form of ethnomathematics-based LKPD containing questions and explanations related to local culture that are valid, practical, and effective. The type of research used is Research and Development (R&D) employing the ADDIE model, which consists of the stages of Analysis, Design, Development, Implementation, and Evaluation. The percentage of assessment results obtained from media validators was 92.72%, and the percentage of assessment results from material validators was 96.66%, categorizing them as very valid. Based on the percentage of student responses to the ethnomathematics-based LKPD on the topic of surface area and volume of a cylinder, an average percentage of 91.99% was obtained, categorized as very practical. Furthermore, according to the effectiveness aspect, a student mastery percentage of 85% was obtained, categorized as very effective. Thus, the conclusion of this study is that the development of learning devices, in this case, ethnomathematics-based LKPD on the surface area and volume of cylinders, meets the aspects of validity, practicality, and effectiveness
PEMAHAMAN KONSEP SISWA BERDASARKAN TAHAPAN APOS PADA MATERI SISTEM PERSAMAAN LINIER DUA VARIABEL DI SMP NEGERI 2 KALAWAT Denis Joshua Tamba; Anetha L. F. Tilaar; Vivian E. Regar
EDU-MAT: Jurnal Pendidikan Matematika Vol 13, No 2 (2025)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/edumat.v13i2.22049

Abstract

Pemahaman konsep matematika merupakan komponen penting dalam pembelajaran Sistem Persamaan Linear Dua Variabel (SPLDV) karena berperan dalam kemampuan siswa memecahkan masalah kontekstual. Penelitian ini bertujuan untuk menganalisis pemahaman konsep siswa berdasarkan teori APOS (Action, Process, Object, Schema) yang menguraikan tahapan berpikir matematis siswa. Studi ini menggunakan pendekatan kualitatif dengan teknik pengumpulan data melalui tes diagnostik dan wawancara mendalam terhadap tiga siswa yang mewakili kategori kemampuan tinggi, sedang, dan rendah dari total 28 siswa yang mengikuti tes. Hasil menunjukkan bahwa siswa berkemampuan tinggi mampu menyelesaikan soal SPLDV secara hampir menyeluruh berdasarkan tahapan APOS, meskipun terdapat kekurangan dalam representasi tertulis. Siswa berkemampuan sedang menunjukkan pemahaman terbatas, khususnya dalam menentukan metode penyelesaian dan menarik kesimpulan. Sementara itu, siswa berkemampuan rendah hanya menunjukkan pemahaman semu, karena jawaban diperoleh dari sumber eksternal tanpa melalui proses konstruksi pengetahuan. Temuan ini menegaskan efektivitas teori APOS sebagai kerangka analisis untuk mengidentifikasi kesulitan belajar matematika secara komprehensif. Penelitian ini memberikan kontribusi pada pengembangan strategi pembelajaran berbasis tahapan kognitif siswa dan menyarankan eksplorasi lanjutan dengan integrasi pendekatan teknologi. Kata kunci: pemahaman konsep matematika; teori APOS; SPLDV; pembelajaran kontekstual; kemampuan berpikir matematis Abstract: Conceptual understanding in mathematics is a critical component in learning Systems of Linear Equations in Two Variables (SPLDV), as it plays a significant role in students’ ability to solve contextual problems. This study aims to analyze students' conceptual understanding based on the APOS theory (Action, Process, Object, Schema), which outlines the stages of mathematical thinking. A qualitative approach was employed, involving diagnostic tests and in-depth interviews with three students representing high, moderate, and low ability levels, selectsed from a total of 28 students who participated in the test. The results revealed that the high-ability student was able to complete the SPLDV problems across nearly all APOS stages, although with some limitations in written representation. The moderate-ability student demonstrated partial understanding, especially in selecting problem-solving methods and drawing conclusions. Meanwhile, the low-ability student showed only surface-level understanding, as responses were obtained from external sources without internal knowledge construction. These findings affirm the effectiveness of the APOS theory as an analytical framework to identify learning difficulties in mathematics comprehensively. This research contributes to the development of instructional strategies based on students’ cognitive stages and suggests further exploration of the integration of technological approaches. Keywords: mathematics conceptual understanding; APOS theory; systems of linear equations; contextual learning; mathematical thinking skills
Effectiveness of the Numbered Heads Together Model in Enhancing Mathematics Learning Outcomes on Relations and Functions at the Junior High School Level Desy Kristin Moonik; Vivian E. Regar; Murni Sulistyaningsih
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.6261

Abstract

Goal. Improving the quality of mathematics learning outcomes remains a significant challenge in education, particularly for abstract topics such as relations and functions. This study aims to analyze the effectiveness of the Numbered Heads Together cooperative learning model in improving the mathematics learning outcomes of eighth-grade students at SMP PGRI Poopo.Materials and methods. This study employed a quantitative approach with a quasi-experimental One-Shot Case Study design involving 24 students. The treatment consisted of implementing the Numbered Heads Together learning model during the instructional process, after which students’ learning outcomes were measured through a posttest assessing their mastery of relations and functions concepts. Data were analyzed using descriptive statistics, the Liliefors normality test, and a one-sample t-test to determine whether the mean achievement exceeded the Minimum Mastery Criterion.Results. The analysis showed that the mean student learning outcome reached 83.83, with a minimum score of 70 and a maximum score of 95. The data distribution was confirmed to be normal. The calculated t-value of 6.65 significantly exceeded the critical t-value at the 0.05 significance level, indicating that students’ learning outcomes were above the Minimum Mastery Criterion. These findings demonstrate that the Numbered Heads Together model enhances student participation, conceptual understanding, and equitable engagement in learning activities.Conclusion. The implementation of the Numbered Heads Together model was proven effective in improving mathematics learning outcomes on relations and functions. This study strengthens empirical evidence on the benefits of cooperative learning in addressing abstract and deductive mathematical concepts and provides a basis for recommending the broader implementation of cooperative learning models to improve instructional quality at the secondary school level.
EKSPERIMENTASI MODEL PEMBELAJARAN CONTEXTUAL TEACHING AND LEARNING & PEMBELAJARAN LANGSUNG PADA MATERI PELUANG Reynhart Excel Soentpiet; Vivian E. Regar; Oltje T. Sambuaga
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 1 No. 1 (2023): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

This study aims to examine whether the learning outcomes of students who are taught using the Contextual Teaching and Learning model are higher than the learning outcomes of students who are taught using direct learning on opportunity material. This research method is a quasi- experimental design with Posttest only Control Design with a model for context-based learning and instruction and a direct learning model. The results of the Lilliefors test and t-test showed that the data were normally distributed and the final scores of the students of class VIII A as the experimental class and VIII B as the control class had substantial variations in the average score. The results were analyzed using t-test with a significance level of = 0.05 is Tcount = 2.06336 > Ttable = 2.01063 so that H_0 is rejected and H_1 is accepted. Thus the application of the Contextual Teaching and Learning learning model has an effect on students' ability to solve Opportunity questions at St. Catholic Junior High School. Johanis Laikit.
DAMPAK PENGGUNAAN MEDIA SOSIAL PADA HASIL BELAJAR MATEMATIKA SISWA SMP NEGERI 1 PUSOMAEN Carina Olita Selin Tulandi; Sylvia J.A Sumarauw; Vivian E. Regar
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 1 No. 1 (2023): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

This study aims to determine the impact of the use of social media, especially YouTube on the mathematics learning outcomes of SMP Negeri 1 Pusomaen students. The social media youtube is the largest video presenter in the world today which contains all types of videos. Most of the students of SMP Negeri 1 Pusomen admitted that they prefer to use YouTube social media when they are at school rather than studying, besides that mathematics subjects are less attractive to students because they are considered very boring, making students rarely study when they are at home. Mathematics learning that is less attractive to students and excessive use of social media during class hours results in student learning outcomes that are still below the KKM. The type of research used is descriptive qualitative. Data collection techniques are observation, questionnaires/questionnaires, and interviews. Data analysis techniques in the form of data reduction, data presentation, and data verification. The results of the study at the time of observation showed that students had various reasons for using YouTube social media, but almost all of the students who were sampled very often used this social media anywhere and anytime, including at school when learning took place. The frequent use of social media by students has an impact on students' mathematics learning outcomes. The distributed questionnaire score data also shows that students really like YouTube social media with a percentage of 56% in the response aspect, and 54% in the reaction aspect. At the time of the research, the researcher tried to find out more about the impact of using YouTube social media on student learning outcomes, by making YouTube social media a learning resource, and it was found that students were very enthusiastic during the learning process and the learning outcomes obtained were 88 out of 100 students. have finished studying. This makes the use of YouTube social media a positive impact if used properly. So, the conclusion that can be drawn from the implementation of this research is that the use of appropriate social media has a positive impact on the mathematics learning outcomes of SMP Negeri 1 Pusomaen students and has a negative impact on student learning outcomes if it is used excessively and not as a learning resource.
OPTIMALISASI TAHAP PRESENTASI MODEL PIMCA PADA PEMBELAJARAN MATRIKS MATERI SPLTV Vellin F.E Londo; Sylvia J.A. Sumarauw; Vivian E. Regar
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 1 No. 1 (2023): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

In the learning process, how to provide material that does not can cause students to get less information about material, lack of understanding of concepts and difficulty solving problems such as training provided, thus causing low learning outcomes. Study on learning the SPLTV material matrix with the Optimization of the Presentation Stage based on MR (Multiple Representation) aims to enable student to obtain material information provided, can master the concept of material, and solve problems such as sample questions and can find out improvement of student learning outcomes. By using the PIMCA model which divided into 4 steps, namely Presentation, Idea Mapping, Conceptualization, Formative Assessment. This research was conducted in the Department of Mathematics with respondents 22 students. From the results of the calculation of the data obtained the average score pretest 6 and the average posttest score 65. Also obtained the average percentage an increase in understanding of the concept of 82,67 as a result there is an increase in understanding the concept so that the Optimization Stage is obtained PIMCA In SPLTV Material Matrix Learning, there is a improvement of learning outcomes and this model can also be an alternative in selection of learning models and can be continued in the STEM field.
ANALISIS KEMAMPUAN PEMAHAMAN MATEMATIS PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL Deliska Takalao; Vivian E. Regar; Murni Sulistyaningsih
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 1 No. 2 (2023): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

The ability of students' mathematical understanding of the system of linear equations of two variables in Class VIII of SMP Negeri 5 Manado is very diverse, and there needs to be a special review of this. The purpose of this study was to determine the students' mathematical understanding ability based on the level of ability category on the material of the two-variable Linaer equation system. The subjects in this study, namely several students of class VIII SMPN 5 Manado, who will be selected based on a test to determine their level of ability 2 students with moderate ability, and 2 students with low ability with the total number of subjects selected is 6 students. The results of this study showed that there were 4 students in the high ability category, 7 students in the medium ability, and 9 students in the low ability category.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL MATEMATIKA BERBENTUK CERITA PADA POKOK BAHASAN KELILING DAN LUAS LINGKARAN KELAS VIII SMP NEGERI 4TOULUAAN Enjel Watania; Jorry F. Monoarfa; Vivian E. Regar
TARBIYATUL ILMU: JURNAL KAJIAN PENDIDIKAN Vol. 2 No. 12 (2025): Tarbiyatul Ilmu: Jurnal Kajian Pendidikan
Publisher : CV. ADIBA AISHA AMIRA (ADISAM PUBLISHER)

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Abstract

The purpose of this study is to analyze students' mistakes in solving problems in the form of stories about circumference and circle area. The type of research used is descriptive qualitative. This research was carried out in class VIII B of SMP Negeri 4 Touluaan, in the even semester of the 2021/2022 academic year. The subjects of the study numbered 13 students. Then given a test of the story questions around and the area of the circle to get data. The test results were then randomly selected 4 students based on different errors to interview. The data obtained are analyzed with the stages used are data reduction, data presentation and conclusion drawing. The results showed that out of the five questions given, most students made mistakes in answering story questions about the perimeter and area of the circle. Of the four types of problem solving polya the percentage of errors made sequentially with the largest to the smallest percentage is the error of re-examining with a percentage of 73.85%, the error of completing planning with a percentage of 46.15%, understanding the problem 40%, planning a solution 29.23%.
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