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de Fermat : Jurnal Pendidikan Matematika
Published by Universitas Balikpapan
ISSN : 26216078     EISSN : 26217309     DOI : -
Core Subject : Education,
Education Mathematics Other
Jurnal de Fermat adalah jurnal yang diterbitkan oleh Program Studi Pendidikan Matematika Universitas Balikpapan. Terbit dalam dua kali setahun, yaitu pada bulan Juni dan Desember.
Arjuna Subject : -
Articles 158 Documents
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SYSTEMATIC LITERATURE REVIEW: PENGARUH DISCOVERY LEARNING BERBANTUAN SCAFFOLDING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA Ashyifa Maulia Al Fitrianny; Rofiroh Rofiroh; Dinar Nirmalasari
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.v9i1.2524

Abstract

This study aims to examine the effectiveness of implementing a discovery learning model combined with scaffolding techniques in improving students' mathematical problem-solving competencies through a Systematic Literature Review approach. The underlying problem of this study is the low ability of students to solve mathematical problems due to the dominance of conventional learning approaches that are still teacher-centered. The Discovery Learning model provides opportunities for students to construct conceptual understanding independently, but in practice, students often require guidance. Therefore, scaffolding techniques are needed to direct the learning process to be more systematic and meaningful. This study analyzed 15 scientific articles with a publication period of 2020–2025 from Google Scholar, Publish or Perish, Sinta, and Garuda using the PRISMA-based Systematic Literature Review method. The analysis of these findings can be concluded that Discovery Learning assisted by scaffolding is proven to be effective in improving mathematical problem-solving abilities the use of this model is better than the use of conventional models. Scaffolding supports each stage of problem-solving, reduces cognitive load, and increases student motivation. The integration of Discovery Learning assisted by scaffolding, effectively develops students' mathematical problem-solving abilities
Efektivitas Media Batang Napier Untuk Meningkatkan Hasil Belajar Peserta Didik Pada Pembelajaran Operasi Perkalian Bilangan Cacah Kelas V SD N 1 Cening Muhamad Najah Ilham Albasir; Eka Titi Andaryani
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.v9i1.2526

Abstract

This research is motivated by the low multiplication skills among fifth-grade students, a subject often perceived as daunting. This study aims to determine the effect of using Napier’s Bones media on mathematics learning outcomes at SD Negeri 01 Cening. A quasi-experimental method was employed, involving class V A as the experimental group and class V B as the control group. The hypothesis test results revealed an Asymp. Sig. (2-tailed) value of 0.000 (p < 0.05). Furthermore, the mean score of the experimental group reached (61.25), significantly higher than the control group which only obtained (40.). These findings provide strong statistical evidence that the implementation of Napier’s Bones media has a significant impact on improving the mathematics learning outcomes of fifth-grade students at SD Negeri 01 Cening.
SYSTEMATIC LITERATURE REVIEW: EFEKTIVITAS MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW DALAM MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA DI INDONESIA Dhafa Purbaya Nurrohim; Bambang Eko Susilo
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.v9i1.2527

Abstract

This study was motivated by the low level of students’ mathematical critical thinking skills in Indonesia, indicating the need for learning models that can increase students’ active participation in mathematics learning. This study aims to analyze the effectiveness of the jigsaw cooperative learning model in improving students’ mathematical critical thinking skills in Indonesia and to identify the characteristics of previous studies based on educational level, research method, learning media, learning materials, and regional distribution. The method used in this study was a Systematic Literature Review (SLR) by analyzing 15 scientific articles indexed in SINTA and Scopus published between 2016 and 2025 that met the inclusion criteria. The data were analyzed descriptively and thematically based on the research questions. The results showed that the jigsaw cooperative learning model was effective in improving students’ mathematical critical thinking skills through discussion activities, group collaboration, and active student involvement in the learning process. In addition, the reviewed studies were dominated by quantitative approaches, elementary school level, and the use of printed learning media. Therefore, the jigsaw cooperative learning model can serve as an effective and relevant alternative learning model for improving students’ mathematical critical thinking skills.
PENGARUH PENDEKATAN MATEMATIKA REALISTIK BERBANTUAN GEOGEBRA TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMP NEGERI 27 MEDAN Nurul Indah Klismei Agung; Kairuddin Kairuddin
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.v9i1.2528

Abstract

This study aimed to determine the effect of the Realistic Mathematics Approach assisted by Geogebra on the mathematical problem-solving ability of eighth-grade students at SMP Negeri 27 Medan and to describe students’ answer processes in solving mathematical problems. This research used a pre-experimental method with a one group pre-test-post-test design. The population consisted of all eighth-grade students of SMP Negeri 27 Medan, with one experimental class selected through cluster random sampling. Data were collected through mathematical problem-solving ability tests. The results showed that the average pre-test score of 48.66 increased to 81.83 in the post-test. The data were normally distributed and homogeneous. Hypothesis testing showed a significance value of 0.000 < 0.05, indicating a significant effect of the Realistic Mathematics Approach assisted by Geogebra on students’ mathematical problem-solving ability. The coefficient of determination (R-Square) was 0.663, indicating a contribution of 66.3%. Students’ answer processes showed that students were able to understand problems, plan solutions, carry out solutions, and recheck the obtained results.
PENGARUH PENDEKATAN REALISTIC MATHEMATICS EDUCATION (RME) BERBANTUAN VIRTUAL REALITY (VR) TERHADAP KEMAMPUAN SPASIAL SISWA Siti Sarah; Dian Armanto
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.v9i1.2529

Abstract

This study aimed to determine the effect of the Realistic Mathematics Education (RME) approach assisted by Virtual Reality (VR) on students’ spatial ability and to describe students’ answer processes related to spatial ability. This research employed a pre-experimental method with the one-group pretest-posttest design. The population consisted of all eighth-grade students of MTs Swasta Muhammadiyah Sei Apung Jaya, while class VIII-Amanah was selected as the sample using cluster random sampling. Data were collected through tests, questionnaires, and documentation. Based on the pretest results, the average score was 52.08 and increased to 84.62 in the posttest. The analysis showed that the data were normally distributed and linear, allowing hypothesis testing to be conducted. Simple linear regression analysis resulted in the equation Ŷ = 34.495 + 0.784X with a correlation coefficient of 0.926, indicating a strong relationship between variables X and Y. The coefficient of determination was 85.8%, meaning that the Realistic Mathematics Education (RME) approach assisted by Virtual Reality (VR) contributed 85.8% to students’ spatial ability. The t-test results showed that  (12.526 > 2.056) with a significance value of 0.000 < 0.05, indicating that H₀ was rejected and Hₐ was accepted. Furthermore, the use of VR helped students understand geometric concepts more concretely and interactively.
SYSTEMATIC LITERATURE REVIEW: IMPLEMENTASI PENDEKATAN PEMBELAJARAN DIFERENSIASI PROSES BERDASARKAN KEMAMPUAN AWAL DALAM PEMBELAJARAN MATEMATIKA I Gusti Ayu Agung Intan Ananda Suari Yudiasa; Ni Made Sri Mertasari; Putu Kartika Dewi; I Made Ardana; Gusti Ayu Mahayukti
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.v9i1.2530

Abstract

Differentiated learning is a key solution to addressing student diversity. However, the implementation of specific process strategies based on students' initial ability in mathematics learning still requires systematic review. This study aims to analyze and synthesize the literature related to the implementation of process differentiation based on students' initial ability in mathematics learning. The method used was a Systematic Literature Review (SLR) with three screening stages PRISMA: identification, screening, and eligibility. Data was collected through the Google Scholar database, covering publications from 2021 to 2026. From the initial search results of 204 articles, 14 final articles were selected that met the inclusion criteria, including articles indexed by Scopus and Sinta. The results indicate that the most effective implementation of process differentiation in mathematics is achieved through mapping initial ability as a basis for determining instructional strategies, such as the use of work examples for low-ability students and tiered exercises and practice. The literature synthesis concluded that adaptively adapting the learning process to the initial ability profile not only improves learning outcomes but also optimizes students' critical thinking skills and positive attitudes toward mathematics.
ANALISIS HUBUNGAN SELF-REGULATED LEARNING TERHADAP KEMAMPUAN BERPIKIR REFLEKTIF MATEMATIS SISWA SMP SYSTEMATIC LITERATURE REVIEW Anisa Anisa; Heni Pujiastuti; Hepsi Nindiasari
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.v9i1.2531

Abstract

Mathematical reflective thinking ability is a higher-order skill vital in mathematics education. Yet, research on its link with self-regulated learning (SRL) among junior high school students is limited and unsystematically reviewed. This study examines the relationship between SRL and mathematical reflective thinking ability through a 10-year (2016–2026) systematic literature review, identifying patterns and implications for mathematics education at the junior high school level. Using Systematic Literature Review (SLR) per PRISMA guidelines, searches on Google Scholar, ERIC, and accredited national journals employed keywords: "self-regulated learning," "mathematical reflective thinking ability," and "junior high school students." Of 30 articles identified, 15 met the inclusion criteria and were analyzed using descriptive qualitative methods. Findings show a consistent positive correlation between SRL and mathematical reflective thinking ability. High-SRL students more comprehensively fulfill reflective thinking indicators (reacting, elaborating, contemplating) compared to medium/low-SRL peers. This relationship is mediated by the structural alignment between SRL phases (forethought, performance control, self-reflection) and the cognitive processes underlying reflective thinking. Problem-Based Learning (PBL) consistently optimizes the role of SRL in developing mathematical reflective thinking ability. The study strengthens the empirical basis for fostering SRL in junior high school mathematics learning and urges the integration of metacognitive strategies into the curriculum
TRANSFORMASI MOTIVASI BELAJAR MELALUI PEMBELAJARAN BERBASIS MATLAB : STUDI KUASI -EKSPERIMEN PADA SISWA Ahmad Sofi Yullah; Siti Nur Azizah
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.v9i1.2537

Abstract

This study aims to determine the effect of MATLAB-based learning on the motivation to learn of Grade 10 students in the polynomial unit at MAN 2 Banyuwangi. The method used was a quasi-experimental design (Non-equivalent Control Group Design) consisting of an experimental class and a control class. Motivation questionnaires, observations, and documentation were used to collect data, which was then analysed using a t-test. The results indicate that learning motivation in the experimental group was higher (83.00–86.00) compared to the control group (83.00–85.00). Statistical testing revealed a significant p-value (p < 0.05). The research results indicate that MATLAB-based learning is more effective than conventional learning. Based on the t-test results, the t-value was 3.55, and the p-value was 0.01, indicating a significant difference between the two groups. The study concludes that interactive visualisation, dynamic simulations, and student engagement in mathematics learning through MATLAB can enhance students’ learning motivation
PENGARUH MEDIA PEMBELAJARAN INTERAKTIF TERHADAP MOTIVASI BELAJAR MATEMATIKA SISWA PADA KURIKULUM MERDEKA Ramadhan Herianto; Andi Mangaraja; Mariam Nasution
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.v9i1.2540

Abstract

This study aimed to determine the effect of PhET-based interactive learning media on students’ motivation in learning mathematics within the implementation of the Merdeka Curriculum. The study employed a quantitative approach using a quasi-experimental method with a pretest-posttest control group design. The population consisted of all eighth-grade students of MTsN 1 Padangsidimpuan, totaling 144 students. The sample comprised 72 students selected through cluster random sampling, with 36 students assigned to the experimental group and 36 students to the control group. The research instruments included a learning motivation questionnaire, a mathematics achievement test, and an observation sheet for students’ learning activities. Data were analyzed using normality tests, homogeneity tests, and an Independent Samples t-test. The results revealed that the average learning motivation score of students in the experimental group increased from 68 to 85, while that of the control group increased from 67 to 72. The t-test results showed a significance value of 0.000 < 0.05, indicating a significant effect of PhET-based interactive learning media on students’ motivation in learning mathematics. Furthermore, the effect size value of 0.85 indicated a large effect. Therefore, PhET-based interactive learning media can be considered an effective tool for enhancing students’ motivation in learning mathematics within the implementation of the Merdeka Curriculum.
The Perbedaan hasil belajar matematika siswa menggunakan metode pembelajaran blendid learning berbantuan google classroom dan metode pembelajaran langsung pada materi lingkaran di SMA Negeri 3 Manado Sisilia Ruth Khagow; Cori Pitoy; Derel Filandy Kaunang
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.v9i1.2543

Abstract

This study aims to determine the differences in student learning outcomes between those taught using a blended learning method supported by Google Classroom and those taught using a face-to-face method on the topic of circles at Manado State High School 3. This study employs a quantitative approach using a quasi-experimental design and a post-test only control design. The research sample consisted of two classes: Class XI A as the experimental class and Class XI B as the control class. Data collection utilized a post-test to measure learning outcomes. Data were analyzed using normality tests, homogeneity tests, and t-tests. The results indicated that the average learning outcome for students in the experimental class was 80.97, while that for the control class was 75.18. The results of the hypothesis test yielded a calculated t-value of 1.905 and a critical t-value of 1.672 at a significance level of 0.05, so the calculated t-value was greater than the critical t-value. Thus, there was a difference in student learning outcomes, with students taught using blended learning supported by Google Classroom achieving better results than those taught using the direct instruction method.

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