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PENGETAHUAN LOKAL NELAYAN BUGIS DALAM ESTIMASI JARAK DAN WAKTU: KAJIAN ETNOMATEMATIKA PADA AKTIVITAS MELAUT Wahyuni, Sri; Busrah, Zulfiqar; Aras, Andi; Azmidar, Azmidar
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.v9i1.2521

This study aims to uncover the concept of ethnomathematics in the practice of distance and time estimation in the fishing activities of Bugis fishermen on the coast of Cempae, Parepare City. The study used a qualitative approach with ethnographic methods. Data were obtained through participatory observation and in-depth interviews with three informants, then analyzed using the Spradley model which includes domain analysis, taxonomy, components, and cultural themes. The results show that fishermen utilize local knowledge in determining direction, distance, and time through natural signs such as islands, seabirds, water color, and the position of the sun (lettu esso ri ulunna). Four main domains were found, namely determining position using islands and seabirds as directional references, determining distance based on fishing experience, determining time through the position of the sun and weather conditions, and observing marine environmental conditions through water color and ocean currents. These four domains are interrelated in supporting fishermen's fishing activities. The cultural theme reveals the integration of local knowledge with mathematical concepts through measuring, counting, locating, and designing activities. The estimation carried out by fishermen remains relevant because it is contextual and adaptive.

Pengaruh Intensitas Penggunaan Media Sosial dan Kecerdasan Emosional terhadap Prestasi Belajar Matematika Siswa SMP Walisongo Khoiroh, Muhimmatul; Kurniawati, Yeva
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.v9i1.2522

The purpose of this study is to analyze the influence of social media usage intensity and emotional intelligence on students’ mathematics achievement at Walisongo Junior High School. The social media platforms examined were TikTok and Instagram. This study employed survey and documentation methods as part of a quantitative approach. The population of this study consisted of all 51 students at Walisongo Junior High School. The social media usage intensity and emotional intelligence were measured using a questionnaire, while students’ mathematics achievement was measured based on odd semester final exam results. Data analysis was conducted using multiple linear regression analysis, but prior to this, normality and linearity tests were performed. The results of the data analysis yielded a Simultaneous Test (F-Test) with a significance level of 0.151 > 0.05, therefore, it can be concluded that H0 is accepted and H1 is rejected, meaning that there is no significant simultaneous influence of social media usage intensity (X1) and emotional intelligence (X2) on students’ mathematics achievement (Y) at Walisongo Junior High School. Thus, this study concludes that the variables of social media usage intensity and emotional intelligence do not have a significant influence, either partially or simultaneously, on students’ mathematics achievement

Desain Media Pembelajaran E-Modul dengan Pendekatan Culturally Responsive Teaching (CRT) Materi Kesebangunan dan Kekongruenan Novianti, Mecca Evi; Sulistyaningsih, Dwi; Mawarsari, Venissa Dian
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.v9i1.2523

The advancement of electronic systems necessitates modernization in mathematics learning to render it increasingly collaborative and aligned with scholars’ requirements. In execution, learning regarding the material of similarity and congruence at the junior high school tier continues encountering numerous obstacles, especially concerning pupils’ restricted theoretical grasp and the inefficient utilization of electronic learning media. This study aims to develop an e-module based on the Culturally Responsive Teaching (CRT) approach on similarity and congruence material that meets validity criteria as a learning resource. This investigation utilized a Research and Development (R&D) strategy employing the 4D framework, which was performed until the define, design, and develop phases. Evidence was gathered through verification forms finalized by media specialists and material authorities. The findings demonstrated that the e-module achieved a mean rating of 3.88 from media experts and 3.69 from material experts using a 1-4 scale, with an overall mean score of 3.78, which was categorized as highly valid. These outcomes signify that the produced e-module satisfies the viability benchmarks for application in learning. The produced e-module is anticipated to assist pupils in comprehending principles via dynamic learning exercises unified with the societal background of Nyadran. Subsequent exploration is advocated to scrutinize the usability and efficacy of the e-module within class execution.

SYSTEMATIC LITERATURE REVIEW: PENGARUH DISCOVERY LEARNING BERBANTUAN SCAFFOLDING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA Fitrianny, Ashyifa Maulia Al; Rofiroh, Rofiroh; Nirmalasari, Dinar
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

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 Albasir, Muhamad Najah Ilham; Andaryani, Eka Titi
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

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 Nurrohim, Dhafa Purbaya; Susilo, Bambang Eko
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

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 Agung, Nurul Indah Klismei; 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

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 Sarah, Siti; Armanto, Dian
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

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 Yudiasa, I Gusti Ayu Agung Intan Ananda Suari; Mertasari, Ni Made Sri; Dewi, Putu Kartika; Ardana, I Made; Mahayukti, Gusti Ayu
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

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; Pujiastuti, Heni; Nindiasari, Hepsi
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

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

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Tri Hariyati Nur Indah Sari

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pmat@uniba-bpn.ac.id

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Location
Kota balikpapan,

Kalimantan timur

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Abstract

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Tri Hariyati Nur Indah Sari

Contact Email pmat@uniba-bpn.ac.id

Phone -

Journal Mail Official pmat@uniba-bpn.ac.id

Editorial Address -

Location Kota balikpapan, Kalimantan timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Tri Hariyati Nur Indah Sari

Contact Email
pmat@uniba-bpn.ac.id

Phone
-

Journal Mail Official
pmat@uniba-bpn.ac.id

Editorial Address
-

Location
Kota balikpapan,

Kalimantan timur

INDONESIA