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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 132 Documents
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EVALUASI KETERKAITAN KURIKULUM SEKOLAH MENENGAH KEJURUAN DENGAN KEBUTUHAN DUNIA KERJA DI SEKTOR INDUSTRI Firman, Firman; Putri, Argitha Jessica
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.v9i1.2496

Abstract

Vocational High Schools (SMK) serve as a vital foundation in generating a prepared workforce equipped with specialized skills that align with industry requirements. SMKs should produce graduates who can utilize their skills in professional environments; thus, it is crucial to align the SMK curriculum with industry requirements to establish a connection between the education sector and the labor market. Nonetheless, in reality, the correspondence between the SMK curriculum and the actual demands of the industrial sector continues to be a complicated matter. A key reason for this gap is the insufficient participation of the industry in creating and designing the curriculum. An inflexible and top-down curriculum frequently fails to adapt to the fast-changing dynamics and shifting demands of industry, especially during the Fourth Industrial Revolution. The SMK curriculum needs to equip graduates to meet the demands of the job market, especially in the industrial field. Nonetheless, numerous graduates are considered unready for employment because of a disconnect between the curriculum material and the requirements of the industry. The objective of this research is to assess how well the vocational school curriculum corresponds with labour market demands and to determine the factors leading to this discrepancy. The approach employed involved a review of literature from different sources and policy reports. The method used for analysis was content analysis, with the data examined through multiple stages: (1) gathering literature, (2) selecting sources based on relevance and reliability, (3) data condensing, (4) categorising themes, and (5) forming conclusions. The study's findings reveal that industry participation in curriculum development is limited, the curriculum inadequately adapts to technological advancements, and the incorporation of soft skills is lacking. Enhanced cooperation between vocational institutions and the industrial sector is necessary to guarantee graduates are better equipped and more applicable.
EFEKTIVITAS DEEP LEARNING BERBANTU MEDIA FRACTION BOARD TERHADAP HASIL BELAJAR PECAHAN SISWA KELAS IV SDN KATELAN 1 Zaitun, Alinda; Sari, Elok Fariha
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.v9i1.2497

Abstract

This study aims to determine (1) the mastery of student learning outcomes using Deep Learning assisted by the Fraction Board, (2) the differences in student learning outcomes between Deep Learning assisted by the Fraction Board and conventional learning, and (3) the effectiveness of Deep Learning assisted by the Fraction Board on student learning outcomes. This study is a quantitative study using a quasi-experimental design, specifically a nonequivalent control group design. The research sample consisted of two classes selected using purposive sampling. The instrument used was a test, and the data obtained were analyzed using prerequisite tests, namely normality and homogeneity tests. The results of the prerequisite tests indicated that the sample was normally distributed and homogeneous. Data analysis utilized descriptive statistics, the one-sample t-test, the independent samples t-test, and the N-Gain test. The results of the study showed a significant difference between the two classes with a Sig. value of 0.001 < 0.05. The average N-Gain score of the experimental class was 58.3%, which falls into the fairly effective category. Meanwhile, the control class only reached 38.3%, which falls into the ineffective category. This study shows that Deep Learning assisted by the Fraction Board medium has been proven to improve student learning outcomes.
Pengembangan Media Pembelajaran Komik Berbasis Science, Technology, Engineering, and Mathematics (STEM) pada Materi Bangun Ruang Sisi Datar Kelas IX Fernanda, Muhammad Khalvin; Ikmawati, Ikmawati; Asyril, Asyril; Dimpudus, Ariantje
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.v9i1.2498

Abstract

This study aims to examine the process of developing Science, Technology, Engineering, and Mathematics (STEM)-based comic learning materials, as well as the validity, practicality, and feasibility of these materials for teaching flat-sided three-dimensional shapes to ninth-grade junior high school students. The study employs a Research and Development (R&D) approach using the ADDIE model, which comprises the Analysis, Design, Development, Implementation, and Evaluation stages. The Analysis stage includes an analysis of needs, curriculum and content, as well as technological developments. The Design stage involves the development of instructional materials, product design, and the creation of research instruments, including expert validation sheets for content, media, and language, as well as a student practicality questionnaire. The Development stage included product creation and expert validation. The Implementation stage was conducted with 31 ninth-grade students. The Evaluation stage involved product revisions by subject matter and language experts. The research results indicated that students struggled to understand the material, highlighting the need for comics as an engaging visual medium. The school implemented the Merdeka Curriculum with this material as the research focus. The validation results were 92% for content, 100% for media, 95.11% for language, and 90.4% for practicality. The 93.38% feasibility percentage indicates that the media is highly valid and suitable for use in mathematics instruction on the topic of flat-sided three-dimensional shapes for 9th-grade junior high school students, following the stages of storyboarding, expert validation of the instructional materials, product revision, and phased, structured pilot testing with students
PEMANFAATAN MASALAH MATEMATIKA TERBUKA DALAM PEMBELAJARAN SEBAGAI STRATEGI DALAM MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS : SYSTEMATIC LITERATURE REVIEW Junita, Ni Ketut; Pujawan, I Gusti Ngurah; Ariawan, I Putu Wisna
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.v9i1.2499

Abstract

Students' critical thinking skills in mathematics learning remain relatively low due to the dominance of conventional teaching that focuses on procedures and single correct answers. This study aims to analyze the effectiveness of open-ended mathematical problems in improving students' critical thinking skills, describe their implementation, and identify factors influencing their success. The method employed is a Systematic Literature Review (SLR) examining 22 selected articles obtained through searches on Google Scholar, ERIC, and Semantic Scholar databases, supplemented by manual reference searching, from a total of 212 identified articles. The article selection process was carried out using the identification, screening, eligibility, and inclusion stages based on the PRISMA guidelines, applying predefined inclusion and exclusion criteria within the publication range of 2016–2026. The results indicate that the use of open-ended mathematical problems is effective in enhancing students' critical thinking skills, evidenced by improvements in analysis, evaluation, and decision-making abilities, with a high effect size of 1.44. Implementation is carried out through stages of problem presentation, strategy exploration, discussion, and student-centered reflection. The success of this approach is influenced by problem quality, teacher competence, student engagement, and a supportive learning environment. Therefore, open-ended mathematical problems can serve as an effective alternative learning strategy to develop students' critical thinking skills.
KESIAPAN GURU DALAM MENGIMPLEMENTASIKAN ASESMEN DIAGNOSTIK PADA PEMBELAJARAN MATEMATIKA DI SMP NEGERI 4 TONDANO Damopolii, Matthew Clay Immanuel; Pulukadang, Rosiah Juliati; Pitoy, Cori
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.v9i1.2505

Abstract

This study aims to determine teachers’ readiness in implementing diagnostic assessment in mathematics learning at SMP Negeri 4 Tondano. This research employed a qualitative approach with a case study design. The subjects of the study consisted of three mathematics teachers who had implemented diagnostic assessment in their teaching. Data collection techniques included in-depth interviews, classroom observations, and documentation of diagnostic assessment instruments and blueprints. The data were then analyzed using the interactive data analysis model by Miles and Huberman, which involves data reduction, data display, and conclusion drawing. To ensure data validity, source and technique triangulation were applied. The results showed that teachers’ readiness falls into the sufficient category. Two teachers (Mathematics Teacher 1 and Mathematics Teacher 2) have understood the concept, developed instruments, implemented, and evaluated diagnostic assessment well, although there are still challenges related to students’ readiness. Meanwhile, one teacher (Mathematics Teacher 3) has not implemented diagnostic assessment formally. The instruments developed include test blueprints and cognitive test items; however, they do not yet fully cover non-cognitive assessment components and comprehensive evaluation instruments
Bahasa Inggris Bahasa Indonesia: Bahasa Indonesia Mulyana, Rendi; Prabawati, Mega Nur; Madawistama, Sri Tirto
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.v9i1.2506

Abstract

This study aims to examine the feasibility of a learning media developed using iSpring Suite 11 on integer material to enhance junior high school students’ mathematical literacy skills. The research employed a Research and Development (R&D) method using the ADDIE model. Data collection techniques included preliminary tests and interviews. The instruments used were mathematical literacy test items, interview guideline sheets, feasibility assessment sheets, and student response questionnaires. The data sources consisted of two subject matter experts, two instructional design experts, and two learning media experts who evaluated the technical quality of the media. Additionally, seventh-grade students of SMP Muhammadiyah Tasikmalaya were involved to assess the practicality of the developed media. The result of this study is an Android-based learning media application named MathReality. The feasibility of the media was evaluated based on content, design, and visual aspects. This learning media was declared highly feasible based on the questionnaire results, with assessment percentages of 84% from the subject matter expert, 93% from the instructional design expert, and 98% from the learning media expert. Furthermore, students showed very positive responses toward the practicality of the media, as indicated by a questionnaire result of 92%.
Pengaruh Pendekatan Realistic Mathematics Education (RME) Berbantuan GeoGebra Terhadap Kemampuan Penalaran Matematika Siswa Pada Materi Statistika Kelas X SMKN 6 Medan T.A 2025/2026 Simanullang, Dinda Saktiana; Hutauruk, Agusmanto; Sinaga, Samuel Juliardi
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.v9i1.2508

Abstract

This study aims to determine the effect of the Realistic Mathematics Education (RME) approach assisted by GeoGebra on students' mathematical reasoning skills in statistics material in class X at SMKN 6 Medan. The research employed a quasi-experimental method, with a population consisting of all grade X students divided into 8 classes. The sample was selected using cluster random sampling, resulting in class X MPLB 1 as the experimental group and class X TKKR 2 as the control group. Data were collected using a mathematical reasoning skills test. Data analysis using normality, homogeneity, and t-tests showed a significant difference between the post-test scores of mathematical reasoning skills in the two classes, with a significance value (2-tailed) of 0.001 < 0.05. The average post-test score of the experimental class reached 53.50, while the control class was 45.50, indicating that the mathematical reasoning skills of students taught with the RME approach assisted by GeoGebra were higher than those taught with conventional learning. Based on the Effect Size (Cohen's d) calculation, a value of 0.633 was obtained, which means that the use of the Realistic Mathematics Education (RME) approach assisted by GeoGebra provides a contribution or effect in the medium category to students' mathematical reasoning skills.
Pengaruh Pembelajaran Etnomatematika Permainan Marsitekka Terhadap Pemahaman Konsep Matematika Siswa Pada Materi Transformasi Geometri Kelas XI SMK Negeri 6 Medan T.A 2025/2026 Manurung, Septa Yesika; Hutauruk, Agusmanto; Sinaga, Samuel Juliardi
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.v9i1.2509

Abstract

This study aims to determine the effect of ethnomathematics-based learning using the Marsitekka game on students’ mathematical conceptual understanding in geometry transformation material for Grade XI students at SMK Negeri 6 Medan. This research employed a quasi-experimental method with a population consisting of all Grade XI MPLB students, comprising three classes. The sample was determined through cluster random sampling, resulting in class XI MPLB 3 as the experimental class and class XI MPLB 1 as the control class. Data were collected using a conceptual understanding test. Data analysis included normality, homogeneity test, and t-test showed a difference in posttest scores of conceptual understanding between the two classes, with a significance value (Sig. 2-tailed) of 0,023, which is less than 0,05 at a 5% significance level. The average posttest score of the experimental class was 66.93, while the control class was 60,10, indicating that students’ mathematical conceptual understanding was in the good category. Based on the calculation of Effect Size (Cohen’s d), the value obtained was 0,603, which indicates that ethnomathematics learning through the Marsitekka game has a moderate effect on students’ mathematical conceptual understanding
HUBUNGAN MATH ANXIETY DAN COMPUTATIONAL THINKING TINJAUAN SISTEMATIS DALAM PERSPEKTIF HIGHER ORDER THINKING SKILLS Dahlia, Nia; 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.v9i1.2515

Abstract

This study is motivated by the importance of higher order thinking skills (HOTS) and computational thinking (CT) in 21st-century mathematics education, as well as the affective factor of mathematics anxiety that may influence these abilities. The purpose of this study is to examine the relationship between mathematics anxiety and computational thinking skills, and to analyze the role of HOTS within this relationship through a systematic literature review (SLR) approach. The method follows the PRISMA model, including identification, screening, eligibility assessment, and data synthesis stages, involving 15 articles indexed in Scopus and Sinta, retrieved from Google Scholar (6 Scopus-indexed and 9 Sinta 1-4 indexed articles) published between 2021 and 2026. The findings indicate that most studies show a negative relationship between mathematics anxiety and CT, where increased anxiety is associated with lower computational thinking ability. However, this relationship is contextual and influenced by technology-based and innovative learning interventions. Furthermore, CT acts as a mediating variable that can reduce the negative impact of anxiety on learning outcomes, while HOTS functions as a cognitive framework linking affective and cognitive aspects. These findings highlight the importance of integrating CT and HOTS in mathematics learning to enhance students’ thinking quality while minimizing mathematics anxiety.
PENGARUH PENGARUH PENERAPAN MODEL PBL DAN INQUIRI DENGAN PENDEKATAN CTL TERHADAP KEMAMPUAN HOTS SISWA PADA MATERI SPLDV DIKELAS IX Simarmata, Rachel Cecilia; Huda, Nizlel; Theis, Roseli
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.v9i1.2518

Abstract

This study is based on the low level of students' HOTS abilities at SMP Negeri 14 Kota Jambi, as well as the continued dominance of conventional teaching models. Based on this, the purpose of this study is to examine the use of Problem-Based Learning (PBL) and inquiry learning models combined with a contextual teaching and learning to improve ninth-grade students’ HOTS skills on the topic of Systems of Linear Equations in Two Variables. The research employed a posttest control group design. All ninth-grade classes constitute the population in this study. The samples included class IX F, which was taught using the PBL model with a real-life-based approach; class IX E, which used the inquiry learning model with a real-life-based approach; and class IX D as the control class, which applied a conventional learning model. Data were collected through observation sheets to assess the implementation of teacher and student activities, as well as through a posttest instrument measuring HOTS abilities. The results showed differences among the classes using the PBL model with a real-life-based approach, the inquiry model with a real-life-based approach, and the conventional model. The average posttest scores in the experimental classes I and II were 6.25 and 6.43 (high), while the control class only achieved an average score of 1.96 (low).

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