Mandalika Mathematics and Educations Journal
Mandalika Journal adalah Jurnal ilmiah yang dikelola oleh Program Studi S1 Pendidikan Matematika FKIP Universitas Mataram. Keberadaan Mandilkan Journal diharapkan dapat berkontribusi pada penguatan dan penyebaran ilmu pengetahuan, khususnya pada bidang matematika dan pendidikan. Artikel dapat berupa hasil penelitian maupun kajian pustaka yang akan diterbitakan 4 Kali dalam Setahun, yaitu Bulan Maret, Juni, September dan Desember. Jika ada pertanyaan tentang jurnal ini dapat dikirim ke email mandalika.jurnal@unram.ac.id
Bringing Local Wisdom into Mathematics: Developing a Culturally-Based Problem Posing Assessment
This study aims to develop a local culture-based problem-posing test on linear programming material for eleventh-grade high school students and determine the content validity of the developed test based on expert judgment. The study employed a Research and Development (R&D) approach using the Four-D (4D) model. The developed test was designed to measure students’ abilities in three types of problem-posing activities: pre-solution posing, within-solution posing, and post-solution posing, by integrating local cultural contexts such as economic and agricultural activities around the Sembalun area of Mount Rinjani. The validation was conducted by two mathematics education experts and one local culture expert. The results showed that the developed test achieved a high level of content validity with an average score of 3.75, categorized as very valid. Therefore, the local culture-based problem-posing test developed in this study is considered feasible and valid to be used in assessing students’ abilities to formulate, develop, and solve contextual mathematical problems.
Copyright (c) 2025 Ni Made Intan Kertiyani, Ulfa Lu'luilmaknun, Tabita Wahyu Triutami, Nourma Pramestie Wulandari, Maria Evelin Totuloba https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan Instrumen Pembelajaran Geometri Berbasis Teori Van Hiele Ditinjau dari Kecerdasan Spasial Siswa
This study aims to develop a suitable and practical geometry learning instrument based on Van Hiele Theory, taking into account students' spatial intelligence levels. The research method used is Research and Development (R&D) with the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model. The research subjects were eighth-grade junior high school students. The instruments developed were Student Worksheets (LKS) and geometry learning outcome tests. The results of the validity validation by subject matter experts showed that the instruments were declared very feasible with an average score of 4.17, and media experts showed that the instruments were declared feasible with an average score of 3.74. The practicality of the instruments was assessed using a student response questionnaire, which showed a positive response of 77.70% in the very practical category, while teachers showed a result of 76.43% in the very practical category. It can be concluded that the Van Hiele Theory-based geometry learning instrument developed is feasible and practical for use in facilitating the development of students' geometric thinking levels by considering their spatial intelligence profiles.
Copyright (c) 2025 Azwar Anwar, Mestralitiani Saleda Limbong https://creativecommons.org/licenses/by-nc-sa/4.0
The Effect of E-Modules Based on Problem Based Learning and the STEM Approach on Students' Mathematical Problem-Solving Ability
Students' low problem-solving ability remains a problem in education. This study examines the effect of using PBL and STEM-based e-modules on mathematical problem-solving abilities in elementary to high school students focused on mathematics. The aim is to determine whether the e-modules used affect students' mathematical problem-solving abilities. The method used in this study is a system literature review (SLR) by reviewing articles from Google Scholar and Knowledge Maps sources from 2020 to 2025. The review process includes three stages: planning, implementation, and reporting. The results show that E-modules that integrate the PBL model, the STEM approach, or a combination of both are effective in improving students' ability to solve mathematical problems. These findings indicate that an innovative, student-centered learning model facilitated by e-modules is a potential strategy to address the challenges of problem-solving abilities in mathematics education.
Copyright (c) 2025 Muhammad Farkhan Tamam, Iswahyudi Joko Suprayitno, Eko Andy Purnomo https://creativecommons.org/licenses/by-nc-sa/4.0
Eco-green mathematics and artificial intelligence: a systematic review on sustainable mathematical literacy
The advancement of eco-green mathematics and artificial intelligence (AI) in education provides opportunities to improve sustainable mathematical literacy and support innovative learning practices. This study aims to provide a comprehensive overview of research trends, roles, and best practices in the integration of AI and eco-green mathematics to strengthen sustainability-oriented mathematical literacy. This study uses the systematic literature review (SLR) method with strict guidelines, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A literature search was conducted through the Scopus database for articles published between 2019 and 2025, resulting in 34 studies relevant to this topic. The results show that AI in mathematics education is applied through intelligent tutoring systems, adaptive learning platforms, and machine learning-based tools, while eco-green mathematics emphasizes mathematical modeling to answer ecological and social sustainability challenges. Most of the research was conducted in Europe, Asia, and the United States, with a predominance of conceptual, bibliometric, and mixed-approach studies. The analysis highlights key themes such as trends and concepts, the role of AI, best practices, challenges and opportunities, and future research directions related to sustainable mathematical literacy. Therefore, the synergy of smart technology, green curriculum, and pedagogical innovation will be the key to building sustainable mathematical literacy in the digital era.
Copyright (c) 2025 Sunismi, Abdul Halim Fathani, Yayan Eryk Setiawan, Gusti Firda Khairunnisa https://creativecommons.org/licenses/by-nc-sa/4.0
Integration Of Financial And Mathematical Literacy Through Local Economic Practices In The Independent Curriculum Era
Penelitian ini bertujuan untuk menganalisis pengaruh literasi finansial dan praktik ekonomi lokal terhadap hasil belajar matematika mahasiswa di perguruan tinggi. Metode penelitian ini adalah kuantitatif dengan jenis ex post facto yang bertujuan untuk melihat bagaimana literasi finansial mahasiswa dan pendidikan berbasis praktik ekonomi lokal berdampak pada kemampuan matematika mereka dalam pengelolaan keuangan . Data dikumpulkan dari 68 mahasiswa Universitas Islam Negeri Raden Intan Lampung melalui angket dan tes matematika, kemudian dianalisis menggunakan regresi linier berganda dengan SPSS v.25. Hasil penelitian menunjukkan bahwa literasi finansial dan praktik ekonomi lokal berpengaruh positif dan signifikan terhadap hasil belajar matematika, dengan nilai koefisien determinasi (R²) sebesar 0,566. Artinya, 56,6% variasi hasil belajar dapat dijelaskan oleh kedua variabel tersebut. Integrasi literasi finansial dan ekonomi lokal membantu meningkatkan kemampuan analitis dan pengambilan keputusan finansial mahasiswa. Temuan ini mendukung kebijakan kurikulum Merdeka Belajar–Kampus Merdeka yang menekankan pembelajaran kontekstual dan berbasis pengalaman di perguruan tinggi.
Copyright (c) 2025 Anita Humaida Kulsum, Netriwati, Nadia Zahra afifah, Laila Fitria ulma, Nazwa Devina Hoerunnissa https://creativecommons.org/licenses/by-nc-sa/4.0
Literatur sistematik : pengintegrasian etnomatematika berbasis augmented reality pada pemahaman konsep bangun ruang
This study aims to analyze the results of a systematic literature review (SLR) concerning the integration of ethnomathematics-based Augmented Reality (AR) in geometry learning, particularly focusing on cube and cuboid concepts. This approach reviews the effectiveness of combining local cultural contexts with digital technology to enhance students’ conceptual understanding of mathematics. Literature was collected using the Publish or Perish tool from Scopus and Sinta databases and evaluated following the PRISMA guidelines to ensure relevance and eligibility. From 200 identified articles, 20 studies met the inclusion criteria and were further analyzed. The findings reveal that AR significantly improves students’ spatial visualization, understanding of volume and surface area, and learning motivation. Meanwhile, ethnomathematics serves as a contextual medium linking mathematical concepts to local culture, making learning more meaningful and character-building. The integration of both approaches fosters interactive, contextual, and culturally relevant learning while introducing the concept of symmetry groups through cultural exploration and digital visualization. The study recommends the development of an AR-ethnomathematics-based learning model that explicitly integrates symmetry group concepts to deepen students’ geometric understanding and strengthen cultural values in mathematics education
Copyright (c) 2025 Andi Trisno Trisno, Suradi, Rosidah https://creativecommons.org/licenses/by-nc-sa/4.0
Deskripsi Kemampuan Berpikir Kreatif Matematis Siswa SMP Kelas VIII ditinjau dari Self-Concept pada Materi Teorema Pythagoras
Mathematics not only functions as a discipline of calculation but also serves as a medium to develop students’ critical and creative thinking skills. This study aims to describe the mathematical creative thinking ability of eighth-grade students at SMP Negeri 1 Kabila on the Pythagorean Theorem material in terms of their mathematical self-concept. The research was conducted in the first semester of the 2024/2025 academic year using a descriptive method with a qualitative approach. The subjects consisted of six students selected through purposive sampling, representing high, medium, and low categories of self-concept. Data were collected through mathematical creative thinking tests and interviews, then analyzed based on the indicators of fluency, flexibility, and originality. The results showed that students with a high self-concept fulfilled all indicators and were categorized as highly creative, students with a medium self-concept met only part of the indicators and were categorized as creative to fairly creative, while students with a low self-concept struggled to meet the indicators and were categorized as not creative. These findings emphasize that the higher the students’ mathematical self-concept, the better their mathematical creative thinking ability.
Copyright (c) 2025 Chacha Anggriani Tuli, Khardiyawan A.Y Pauweni, Bertu Rianto Takaendengan https://creativecommons.org/licenses/by-nc-sa/4.0
Kemampuan Literasi Matematika Siswa dalam Menyelesaikan Soal Matematika Tipe HOTS Berdasarkan Gender
Mathematical literacy is a fundamental cognitive competency that enables students to analyze mathematical situations and communicate their reasoning effectively. Although numerous studies have investigated mathematical literacy, research that specifically examines students’ performance on HOTS-type mathematical tasks from a gender perspective remains scarce. This study aims to describe students’ mathematical literacy skills in solving HOTS problems based on gender differences. Employing a descriptive qualitative design, the study involved 35 students from class XII IPA 1, consisting of 7 males and 28 females. Data were collected through tests and semi-structured interviews, then analyzed using data reduction, data display, and conclusion drawing techniques. The findings indicate that in analyzing-type HOTS items (C4), male students generally met only the communication indicator, with one male student demonstrating mastery of all indicators. Conversely, female students consistently fulfilled all mathematical literacy indicators. A similar pattern emerged in evaluating-type HOTS items (C5), where most male students achieved only the communication indicator, while female students met all indicators. In creating-type HOTS items (C6), both male and female students demonstrated achievement solely on the communication indicator.
Copyright (c) 2025 Yusfa Lestari, Aprisal Aprisal, Fauziah Hakim, Yusfa Lestari https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan Media Pembelajaran Matematika Berbasis Android Menggunakan Articulate Storyline 3 pada Materi Barisan dan Deret Geometri di SMAN 6 Kupang
Penelitian ini bertujuan untuk mengembangkan media pembelajaran matematika berbasis Android menggunakan Articulate Storyline 3 pada materi Barisan dan Deret Geometri kelas X SMA Negeri 6 Kupang dengan model pengembangan ADDIE. Hasil validasi oleh ahli menunjukkan media berada pada kategori valid dengan skor rata-rata 4,73; aspek kepraktisan memperoleh skor 4,86 (skala kecil) dan 4,89 (skala besar), sedangkan efektivitas ditunjukkan oleh tingkat ketuntasan belajar sebesar 100% pada skala kecil dan 86% pada skala besar. Temuan ini menunjukkan bahwa media Baret Geometri layak digunakan sebagai alat bantu pembelajaran yang inovatif, interaktif, dan efektif dalam meningkatkan pemahaman konsep matematika peserta didik, sekaligus merespons kebutuhan pembelajaran digital yang relevan dengan perkembangan teknologi dan karakteristik generasi pembelajar saat ini.
Copyright (c) 2025 Imanuel Cardoso, Imelda Hendriani Eku Rimo, Siprianus Suban Garak, Melkianus Dappa Lawa Kadi https://creativecommons.org/licenses/by-nc-sa/4.0
Penerapan Model Problem-Based Learning Berbantuan PPT Interaktif Untuk Meningkatkan Kemampuan Pemecahan Masalah Pada Materi SPLDV
Kemampuan pemecahan masalah merupakan kemampuan yang fundamental meliputi kemampuan memahami masalah, merencanakan penyelesaian, menyelesaiakan masalah, dan menafsirkan solusi yang tepat. Dari hasil observasi di kelas VIIIC SMP Negeri 2 Sulamu menunjukan kemampuan pemecahan masalah siswa masih rendah. Oleh karena itu, penelitian ini bertujuan meningkatkan kemampuan pemecahan masalah siswa dengan menerapkan model pembelajaran problem based learning berbantuan ppt interaktif pada materi sistem persamaan linear dua variable. Jenis penelitian ini adalah penelitian tindakan kelas yang terdiri dari 4 tahap yaitu: (1) Perencanaan, (2) Pelaksanaan, (3) Pengamatan, dan (4) Refleksi. Teknik pengumpulan datanya berupa observasi, tes, dan dokumentasi sedangkan analisis datanya deskriptif kuantitatif dan kualitatif. Hasil penelitian menunjukan persentase rata-rata kemampuan pemecahan masalah siswa sebesar 59,86% pada siklus I meningkat menjadi 82,42% pada siklus II. Peningkatan juga terjadi pada persentase rata-rata indikator pemecahan masalah yaitu: (1) Memahami masalah dari 24,61% menjadi 85,42%, (2) Membuat rencana penyelesaian dari 90,63% menjadi 91,67%, (3) melaksanakan rencana dari 64,06% menjadi 78,65, dan (4) Memeriksa kembali dari 60,16% menjadi 73,95%. Penerapan model problem based learning berbantuan PPT interaktif juga meningkatkan aktivitas guru mencapai 96,05% pada siklus I meningkat menjadi 97,23% pada siklus II dan aktivitas siswa mencapai 89,45% pada siklus I dan meningkat menjadi 91,17 pada siklus II.
Copyright (c) 2025 Urbanus umbu Awang, Juliana M. H. Nenohai, Irna K. S. Blegur https://creativecommons.org/licenses/by-nc-sa/4.0
Pengaruh Penggunaan Faded Example pada LKPD terhadap Hasil Belajar Fungsi Kuadrat Siswa Kelas X
Penyebab rendahnya hasil belajar peserta didik disebabkan karena pembelajaran konvensional yang kurang memperhatikan kemampuan awal peserta didik. Oleh karena itu, teknik faded example diterapkan pada LKPD sebagai solusinya. Tujuan penelitian ini adalah untuk mengetahui pengaruh teknik faded example pada LKPD terhadap hasil belajar Fungsi Kuadrat kelas X SMA Negeri 6 Kupang. Metode yang digunakan adalah Pre-Experimental dengan bentuk The One Group Pretest-Posttest Design. Instrumen penelitian berupa pedoman wawancara, lembar angket dan soal tes. Tes yang digunakan berupa tes awal dan tes akhir untuk mengetahui hasil belajar peserta didik. Analisis data menggunakan uji wilcoxon terhadap hasil tes awal dan tes akhir peserta didik. Hasil penelitian menunjukkan bahwa nilai signifikan sehingga terdapat pengaruh yang siginifikan antara tes awal (rata-rata = 2.28) dan tes akhir (rata-rata = 84.5). Nilai effect size sebesar menunjukkan besarnya pengaruh tersebut. Dengan demikian, faded example dalam LKPD memiliki pengaruh yang signifikan terhadap hasil belajar peserta didik.
Copyright (c) 2025 Anggi Koehtae, Theresia Amanda Lopes, Ch Krisnandari Ekowati, Irna Karlina Sensiana Blegur https://creativecommons.org/licenses/by-nc-sa/4.0
Desain Pembelajaran Berdiferensiasi Pada Materi Relasi dan Fungsi Siswa Kelas VIII Sekolah Menengah Pertama
Kurikulum yang digunakan di Indonesia sekarang merupakan kurikulum merdeka dengan tujuan untuk meningkatkan kualitas pendidikan. Pada kurikulum merdeka, pembelajaran berfokus pada peserta didik, sehingga pembelajaran yang dirancang harus disesuaikan dengan kemampuan peserta didik. Penelitian ini bertujuan untuk menghasilkan desain pembelajaran berdiferensiasi pada materi relasi dan fungsi siswa kelas VIII Sekolah Menengah Pertama. Metode penelitian yang digunakan adalah metode design research yang terdiri dari 3 tahapan yaitu preparing for the experiment, design experiment, dan retrospective analysis. Teknik pengumpulan data yang digunakan adalah tes tertulis, observasi, dan wawancara. Analisis data pada penelitian ini menggunakan deskriptif kualitatif dan kuantitatif. Analisis data deskriptif kualitatif digunakan untuk menganalisis data hasil observasi dan wawancara, sedangkan analisis kuantitatif digunakan untuk menganalisis hasil asesmen diagnostik dan asesmen formatif peserta didik. Penelitian ini menghasilkan suatu desain pembelajaran berdiferensiasi, khususnya diferensiasi konten pada materi relasi dan fungsi sesuai dengan kemampuan matematis peserta didik. Berdasarkan hasil penelitian yang diperoleh, pembelajaran berdiferensiasi konten sangat efektif untuk diterapkan pada kegiatan pembelajaran dengan persentase keefektifan klasikal adalah 84%.
Copyright (c) 2025 Elda Lopis, Frengki Y. Nenohaifeto, Damianus D. Samo, Irna K.S. Blegur https://creativecommons.org/licenses/by-nc-sa/4.0
Analisis Konsep Matematika dalam Penyusunan Laporan Keuangan Mahasiswa Akuntansi
Financial statements are a fundamental element of accounting and serve as the basis for strategic decision-making, requiring mastery of accounting principles and quantitative skills. This descriptive qualitative study aims to describe the mathematical concepts and their applications in the preparation of financial statements by accounting students. Data were collected through interviews, student grades, and financial statement documents. The results indicate that the essential mathematical concepts include basic arithmetic, algebraic equations (e.g., ), ratios/percentages, basic statistics, and rounding. Although all students employed the same concepts, the depth and level of integration varied. Students categorized as “very good” demonstrated the ability to link calculations with transaction reasoning, analyze ratios across periods, apply statistical tools for diagnosis, and maintain accuracy control, resulting in financial reports that are meaningful and actionable. In contrast, students in the “fair” category tended to be procedural, focusing on numerical accuracy but lacking interpretation of the underlying meaning. It is therefore recommended that mathematics instructors develop learning models that integrate mathematical theory with direct accounting practice. Project-based or real case study approaches can help students better understand the relationship between mathematical computation and the actual outcomes of financial reporting.
Copyright (c) 2025 Vuvut Selviana, Ilham Saiful Fauzi, Zainal Abdul Haris; Fitrotul Maulidiyah https://creativecommons.org/licenses/by-nc-sa/4.0
Meta-Analysis Meta-Analysis of the Effect of RME on Students’ Critical Thinking Skills
This study aims to conduct a meta-analysis of studies evaluating the impact of the Realistic Mathematics Education (RME) approach on enhancing students' critical thinking skills. Using a meta-analytic method, this research combines data from 16 studies to calculate effect sizes, test data heterogeneity, and analyze moderator variables. The effect size is calculated using the Hedges' g formula and classified according to Cohen's criteria: small (less than 0.2), medium (0.2–0.5), and large (above 0.8). The findings show that RME has a significant positive impact, with effect sizes ranging from 0.193 to 2.737. The largest impact was found in urban areas (effect size 1.2014) compared to rural areas (effect size 0.5581). At the elementary school level, the effect size was 0.7908, and at the junior high school level, it was 0.8287. The highest effect size was recorded in the 2023–2025 period (1.1487). Based on these results, it is recommended that educators and policymakers adopt the RME approach, considering local context and student characteristics. Further research with a larger dataset will strengthen statistical validity and deepen understanding of RME implementation in various learning contexts.
Copyright (c) 2025 Irfantoni Indrastoto, Ali Mahmudi https://creativecommons.org/licenses/by-nc-sa/4.0
Pemecahan Masalah Numerasi Siswa di Daerah 3T dalam Rangka Penyelenggaraan Pendidikan Inklusif di SD
This study aims to provide an in-depth overview of the numeracy problem-solving skills of elementary school students in 3T (frontier, outermost, and disadvantaged) regions, particularly in Pangkep Regency, within the framework of inclusive education. The selection of research subjects was based on the results of the Minimum Competency Assessment (AKM), focusing on numeracy, which includes mastery of basic mathematical concepts and their application in real-life situations. Data collection was carried out through numeracy tests and in-depth interviews. The findings reveal that all respondents, both from grade IV and grade V, were categorized as having low numeracy skills. In the number pattern question, only 16% of grade IV students and 35% of grade V students answered correctly. For the number name question, the achievement rate was 58% for grade IV and 25% for grade V. Meanwhile, in the data analysis question, none of the grade IV students answered correctly, and only 30% of grade V students provided the correct answer. These results indicate that students’ numeracy literacy is low, particularly in reading, understanding, and analyzing information. Contributing factors include the lack of practice with context-based problems, limited learning facilities, the continued use of conventional teaching methods, and the socio-economic background of families. Based on these conditions, there is a need for numeracy learning interventions that are contextual, problem-based, and supported by teacher training to improve the numeracy skills of students in 3T areas. The novelty of this research lies in its specific combination of three aspects: problem-solving, numeracy skills, and inclusive education, particularly in 3T regions.
Copyright (c) 2025 Herman Alimuddin, Andi Yunarni Yusri, Ruri Muhammad PD, Muh. Rahmat https://creativecommons.org/licenses/by-nc-sa/4.0
Open-Ended Problems as a Strategy in Mathematics Modules to Enhance Students’ Mathematics Computational Thinking
Computational thinking (CT) is a key competency in 21st-century mathematics education. However, Indonesian students still face challenges in decomposition, abstraction, and algorithmic reasoning due to learning resources dominated by single-solution problems. This study developed and evaluated a mathematics module based on open-ended problems to enhance students’ CT skills in quadratic functions. The research adopted an R&D approach using the ADDIE model, including analysis, design, development, implementation, and evaluation. The process involved needs, curriculum, and learner analyses, followed by expert validation, practicality testing, and effectiveness evaluation. Three experts validated the module, while teachers and students assessed its practicality. Effectiveness was tested using a quasi-experimental pretest–posttest control group design involving 61 high school students. Data were analyzed using descriptive statistics, N-Gain, and inferential tests. Results showed the module was valid, practical, and effective in improving CT skills. The experimental group achieved significantly higher N-Gain (p < 0.05) than the control group, with abstraction and pattern recognition showing the greatest improvement.
Copyright (c) 2025 Abdul Aziz, Sugeng Sutiarso, Caswita Caswita https://creativecommons.org/licenses/by-nc-sa/4.0
Analisis Kesalahan Kemampuan Representasi Matematis dalam mengerjakan Soal Matematika Materi Statistik
Mathematical representation ability is the competence to present mathematical ideas in symbolic, visual, or verbal forms. This descriptive qualitative research aims to analyze students' errors in solving statistics problems based on mathematical representation ability, conducted through a literature study. The results indicate that students still have difficulty representing mathematical ideas (symbolic, visual, verbal). Key errors include conceptual errors (selecting formulas), inaccuracy in charts/diagrams, and inability to connect the data context with its representation. The contributing factors are the lack of conceptual understanding and a focus on procedures. This finding is expected to serve as a reference for teachers to strengthen students' mathematical representation ability, particularly in statistics material.
Copyright (c) 2025 Nia Puspita, Caswita Caswita, Agung Putra Wijaya https://creativecommons.org/licenses/by-nc-sa/4.0
Eksplorasi Etnomatematika pada Tugu Hari Jadi Kabupaten Dati II Tanah Laut
This study explores the ethnomathematics embedded in the architecture of the Tugu Hari Jadi Kabupaten Dati II Tanah Laut, addressing the persistent issue of low mathematical literacy among Indonesian students in PISA assessments. The research emphasizes the urgent need for culturally relevant pedagogy to make mathematics less abstract and more engaging, particularly given the lack of existing ethnomathematical studies focusing on specific monuments like this one. The primary objective was to identify the inherent mathematical elements within the monument's design and determine their educational applicability. Utilizing a qualitative ethnographic approach, the research successfully catalogued concepts from both plane geometry (rectangles, circles, octagons) and solid geometry (octagonal prisms, cylinders, and hemispheres), complete with their respective mathematical formulas for area, perimeter, and volume calculations, and the role of trigonometry. The findings offer a strong ethnomathematical interpretation, revealing the monument as a cultural artifact that harmoniously symbolizes local values such as balance, steadfastness, and divinity. Educationally, the monument serves as an authentic learning resource to visualize complex geometry, thereby providing valuable contextual material to increase student interest, motivation, and critical mathematical literacy skills in line with global standards.
Copyright (c) 2025 Dewi Indra Anggraeni, Bayu Agung Wicaksono, Liny Mardhiyatirrahmah https://creativecommons.org/licenses/by-nc-sa/4.0
Analisis Soal Etnomatematika SASAMBO dalam Pembelajaran Matematika Dasar
This study aims to analyze the integration of local SASAMBO (Sasak, Sumbawa, and Mbojo) cultural elements into ethnomathematics-based Basic Mathematics learning problems. The approach used was descriptive qualitative, with data sources consisting of evaluation questions that integrate mathematical concepts within a cultural context. Data were analyzed through stages of reduction, presentation, and conclusion to uncover the relevance between local cultural values ​​and mathematical concepts such as sets, logic, and meaning. The results show that using the SASAMBO cultural context in mathematics problems can improve conceptual understanding, strengthen character, and foster student learning motivation. This improvement can be seen in the evaluation results which show progress in mastery of the material and the ability to connect mathematical concepts with real situations that are culturally relevant. Ethnomathematics-based problems make learning more contextual, meaningful, and interactive because they connect cultural experiences with formal mathematical concepts. The application of SASAMBO ethnomathematics can be an effective strategy in developing Basic Mathematics learning that is relevant to local culture and supports the implementation of Independent Learning.
Copyright (c) 2025 Yulia Nurrahmawati, Heriyanto Heriyanto https://creativecommons.org/licenses/by-nc-sa/4.0
Desain Soal Cerita Matematika dengan Strategi Instruksional Solve It! Pada Materi Sistem Persamaan Linear Tiga Variabel
Problem-solving skills are an important aspect that students must acquire both in learning and in everyday life. This is in line with the high standards set by the CCSS that students must have the ability to reason and apply mathematical thinking to world problems and challenges. One way to measure and improve problem-solving skills in mathematics classes is by providing story problems. The purpose of this study is to analyze, design, and develop a product in the form of a mathematical story problem design using the Solve It! learning strategy on the material of three-variable linear equation systems. The research method used is design and development research (DDR). The product was designed and tested on students, then evaluated based on the results of the trials that have been carried out. The development used is testing at a higher level with the diversity and needs of students in inclusive classes. As well as using PISA standard mathematical story problems to train students' problem-solving skills with simple instructions at each step of the solution. The results obtained can equip mathematics teachers with a student worksheet model for teaching three-variable linear equation systems with appropriate strategies to improve the mathematical problem-solving skills of students with learning disabilities.
Copyright (c) 2025 Wina Octaviani, Johannes Gultom, Nurul Bayyinah https://creativecommons.org/licenses/by-nc-sa/4.0
Pemodelan Matematika Penentuan Komposisi Gizi Menu Makan Bergizi Gratis untuk Siswa Sekolah Dasar dengan Metode Simpleks
To address the issue of nutritional deficiencies among Indonesian children, the government implemented a Free Nutritious Meals (MBG) program that meets 30% of the Recommended Nutrient Intake (RNI) for one meal with five food combinations determined by the Ministry of Health. Research aims to determine the composition of the five food combinations and produce the minimum cost of MBG by constructing a linear programming mathematical model. The budget rules set by the government, along with the required amount of nutrition, were calculated as constraints in the mathematical model. The model, which minimizes the objective function subject to 11 nutritional constraints and one budget constraint, as well as non-negative sign restrictions, was solved using the Simplex Method. The model solution, obtained through several iterations for each combination, was generated using AtoZmath software. The results show that the cost of each combination meets the budget rules, and the minimum cost is in combination 1. Additionally, to ensure the budget costs in combinations 2-5 comply with the budget rules, fruit is excluded from the composition of these combinations.
Copyright (c) 2025 Susila Bahri, Vino Raditio Wibowo, Alvi Khairin Nisa, Assyfa Razaqi, Mauriska Khairunnisa, Rina Zulkarman, Ahmad Naufal Hibatullah https://creativecommons.org/licenses/by-nc-sa/4.0
Design and Development of Interactive Worksheets Social Arithmetic Materials to Enhancing Students’ Problem Solving Skills
Design interactive worksheets based on Canva and Liveworksheets is the aim of this project to assist students in developing their social arithmetic problem-solving abilities. The research methodology employed was research and development (R&D) using the ADDIE model, which comprises the phases of analysis, design, development, implementation, and evaluation. The participants were seventh-grade students and a math teacher from SMP Negeri 5 Kotabumi, Lampung. Tests of problem solving skills, observations, interviews, and questionnaires were employed to gather both qualitative and quantitative data. Subject matter experts' validation assessment, which received a score of 0.84 (very valid), media experts' score of 0.90 (valid), and students' and instructors' practicality index scores of 0.80 (practical) and 0.90 (very practical) all demonstrate the study's findings. The effectiveness of the interactive worksheet developed can be seen based on the testing of the n-gain data hypothesis listed in the significance section (2-tailed), which is 0.0017. There is a difference in the improvement of problem solving skills for students who use interactive worksheets. The novelty of this research lies in the development of interactive worksheets based on the Canva and Liveworksheet digital platforms, which integrate visualization, direct interaction, and automatic feedback to improve students' problem solving skills in social arithmetic. Thus, these findings show that the worksheets are valid, practical, and effective in improving students' problem solving skills.
Copyright (c) 2025 Adji W. S. Minadja, Sugeng Sutiarso, Rangga Firdaus, Kenny Candra Pradana, Karsoni Berta Dinata https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan LKPD berbasis Culturally Responsive Teaching (CRT) pada Materi Penjumlahan dan Pengurangan Pecahan Kelas V SD/MI
Matematika merupakan salah satu ilmu dasar yang memiliki keterkaitan kuat dengan kehidupan sehari-hari. Namun, kurangnya bahan ajar kontekstual di sekolah membuat siswa kesulitan memahami konsep matematika secara efektif. Lembar kerja peserta didik (LKPD) yang ada juga sering kali tidak mengaitkan materi dengan latar belakang budaya siswa. Selanjutnya untuk mengatasi permasalahan tersebut, penelitian ini mengembangkan LKPD berbasis Culturally Responsive Teaching (CRT) dengan mengangkat konteks budaya berupa kue tradisional Banjar Putri Selat, Lapis India, Sarimuka, dan Amparan Tatak. Penelitian ini bertujuan menghasilkan LKPD yang valid, praktis, dan efektif pada materi penjumlahan dan pengurangan pecahan untuk siswa kelas V sekolah dasar. Penelitian ini menggunakan metode Research and Development (R&D) dengan model pengembangan ADDIE. Instrumen yang digunakan meliputi lembar validasi untuk mengukur tingkat validitas, angket respons peserta didik untuk mengukur kepraktisan, dan tes hasil belajar untuk mengukur efektivitas. Produk diuji coba pada 25 peserta didik di SDN Kelayan Dalam 2 Banjarmasin. Hasil validasi oleh dua orang ahli menunjukkan skor 3,77 yang termasuk kategori sangat valid. Skor angket respons peserta didik sebesar 3,38 termasuk kategori sangat praktis. Hasil uji efektivitas menunjukkan bahwa 92% peserta didik mencapai Kriteria Ketuntasan Minimal (KKM) yang berarti produk tersebut efektif.
Copyright (c) 2025 Muhammad Daris, Noor Fajriah, Rahmita Noorbaiti https://creativecommons.org/licenses/by-nc-sa/4.0
Model Analisis Jalur: Penggangguran terhadap Tingginya Kriminalitas Mengakibatkan Meningkatnya kemiskinan
The Path Analysis Model is a type of research model used to determine relationships both directly and indirectly. The aim of this research is to look at the analysis of the relationship between unemployment and poverty through crime, both directly and indirectly. This research method is linear regression analysis using SPSS software. The results of this research show that: 1) unemployment leads to high levels of criminality in Lampung Province 2) unemployment results in high levels of poverty in Lampung Province 3) poverty does not lead to high levels of criminality in Lampung Province 4) unemployment increases criminality as seen from high levels of poverty in Lampung Province.
Copyright (c) 2025 Sri Wulandari, Dwi Junia Lestari, Elvina Damayanti https://creativecommons.org/licenses/by-nc-sa/4.0
Students’ Mathematical Problem-Solving Ability through Problem Based Learning
This study aims to analyze and describe students’ mathematical problem-solving (MPS) ability through the implementation of PBL treatment on the topic of the perimeter of plane figures in fifth-grade elementary students. The research employed a quantitative approach with a pre-experimental design, specifically a one-shot case study. The participants consisted of 21 fifth-grade students selected using a purposive sampling technique. The research instrument was a problem-solving test that had been validated for both validity and reliability. The results indicate that PBL contributes significantly to students’ achievement in problem-solving ability. Based on the one-sample t-test, the significance value obtained was < 0.001, indicating that the proposed hypothesis was accepted at the 0.05 significance level. Furthermore, the students’ mean MPS score was 85.39, with a median of 90 and a skewness value of -1.320, which signifies a left-skewed distribution, meaning that most students achieved high scores. Furthermore, when viewed across the four problem-solving procedures, only the third stage—solving problems according to the determined procedures—had a percentage below 70%. This lower percentage was primarily due to inaccuracies in calculation processes, which affected the final results. Such errors were more likely caused by miscalculations rather than by the selection of inappropriate problem-solving strategies.
Copyright (c) 2025 Muhsin Hanis, Wahyudin Wahyudin, Fitriani Andhin Dyas https://creativecommons.org/licenses/by-nc-sa/4.0
Kendala dan Miskonsepsi Kognitif Siswa dalam Menyelesaikan Soal Geometri Berpikir Tingkat Tinggi
This study aims to identify students’ misconceptions in solving Higher Order Thinking Skills (HOTS) geometry problems on plane figures. A descriptive qualitative approach using Cognitive Error Analysis was applied to the written responses of 10 eleventh-grade students in the Mathematics Cambridge Program. The validated instrument consisted of three HOTS essay items. Data were analyzed through error classification, mapping to HOTS levels (C4, C5, C6), and in-depth diagnosis of responses identified as misconceptions. The findings show that students’ main difficulties lie in the Analyzing stage (C4), which subsequently weakens their ability to evaluate and create strategies (C5–C6). Two dominant patterns emerged: misreading non-routine instructions and errors in fundamental geometric concepts, with several cases indicating independent weaknesses at C6. These results highlight the need to strengthen strategic analysis as the foundation for HOTS development. The study is limited by its small sample size and reliance on written data.
Copyright (c) 2025 Lastri Hutagalung, Lukita Ambarwati, Anny Sovia, Tian Abdul Aziz, Flavia Aurelia Hidajat https://creativecommons.org/licenses/by-nc-sa/4.0
Studi Teoretis Indeks Sombor pada Graf-Graf yang Dikonstruksi dari Grup Hingga
Penelitian ini membahas penerapan Indeks Sombor pada berbagai jenis graf yang dibangun dari struktur grup hingga. Indeks Sombor merupakan salah satu indeks topologi yang digunakan untuk mengukur karakteristik graf melalui derajat simpul yang saling berhubungan. Penelitian ini difokuskan pada penentuan pola umum dan perbandingan nilai Indeks Sombor pada beberapa jenis graf grup, yaitu graf koprima, graf non-koprima, graf unit, graf nilpoten, dan graf pangkat. Metode penelitian yang digunakan bersifat teoretis dengan pendekatan kajian pustaka dan analisis deduktif. Setiap graf dikonstruksi berdasarkan relasi antar elemen grup, kemudian derajat simpul ditentukan untuk menghitung nilai Indeks Sombor secara sistematis. Hasil penelitian menunjukkan adanya perbedaan karakteristik nilai Indeks Sombor yang bergantung pada sifat struktur grup yang digunakan, baik komutatif maupun non-komutatif. Selain itu, diperoleh pola umum yang dapat digunakan sebagai dasar untuk menganalisis keterkaitan antara struktur aljabar grup dan sifat topologis grafnya. Temuan ini diharapkan dapat memperkaya kajian energi graf dan indeks topologi dalam konteks teori graf aljabar.
Copyright (c) 2025 Mufidatul Ghina Hapsari, I Gede Adhitya Wisnu Wardhana Wardhana, Abdurahim Abdurahim https://creativecommons.org/licenses/by-nc-sa/4.0
Representasi Matematika dalam Budaya Kampung Adat Cikondang: Sebuah Kajian Etnomatematika
Kampung Adat Cikondang merupakan salah satu komunitas adat yang masih mempertahankan nilai-nilai budaya secara konsisten dalam kehidupan sehari-hari, namun potensi budaya tersebut masih jarang dikaji dan dimanfaatkan dalam konteks pembelajaran, khususnya pembelajaran matematika berbasis kearifan lokal. Penelitian ini mengkaji unsur-unsur matematika yang terkandung dalam budaya masyarakat Sunda, khususnya di Kampung Adat Cikondang, Desa Lamajang, Kecamatan Pangalengan, Kabupaten Bandung, sebagai bagian dari warisan budaya yang diterapkan dalam kehidupan sehari-hari melalui pola-pola yang khas. Budaya lokal seperti struktur rumah adat, sistem penanggalan tradisional, dan alat makan sehari-hari masih erat kaitannya dengan nilai-nilai dan simbol yang diwariskan secara turun-temurun. Penelitian ini menggunakan metode kualitatif dengan pendekatan etnografis. Data diperoleh melalui wawancara mendalam dengan informan utama yaitu Bapak Anom Juandi selaku juru kunci generasi keempat Rumah Adat Cikondang, observasi langsung di lapangan, dokumentasi visual, serta pembuatan catatan etnografis. Hasil penelitian menunjukkan adanya konsep modulo dalam sistem penanggalan tradisional dan konsep geometri pada struktur bangunan rumah serta bentuk alat makan tradisional. Temuan ini dapat menjadi rujukan dalam pengembangan pembelajaran matematika berbasis budaya lokal, serta mendukung guru dalam merancang proses pembelajaran yang kontekstual dan bermakna.
Copyright (c) 2025 Melli Larassati, Hani Sulistiani, Usman Aripin https://creativecommons.org/licenses/by-nc-sa/4.0
Penalaran Proporsional dalam Pendidikan Matematika: Tinjauan Literatur Sistematis (SLR)
This systematic literature review analyzes international evidence on proportional reasoning (PR) in K–12 education and teacher training. We synthesized eight studies and identified four key patterns. Contexts with hands-on activities help students transition from intuitive to formal strategies. Students often succeed with probability ratios, but struggle with visual biases. Example-based practice with self-explanation improves probabilistic reasoning, especially for less prepared students. Finally, diagnostic tools such as construct maps are useful for tracking student progress from "combined unit" to "multiplicative comparison" understanding. Our review recommends designing a clear progression for ratios, rates, and probabilities; teaching anti-bias strategies; embedding routines of example problems; and using construct map-guided assessments. This synthesis provides a clear action lens to improve PR instruction by integrating student cognition, task design, and teacher practices.
Copyright (c) 2025 Prismadian Amalia Putri, Agus Susanta, Nurul Astuty Yensy https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan Media Pembelajaran C-Hotika (Construct Berbasis Hots Matematika) Pada Materi KPK Dan FPB Kelas V Di SDN 016 Samarinda Ulu
Perkembangan teknologi digital telah mendorong perubahan besar dalam sektor pendidikan, salah satunya dalam pembelajaran matematika di sekolah dasar. Namun, tidak sedikit siswa masih kesulitan memahami konsep seperti Kelipatan Persekutuan Terkecil (KPK) dan Faktor Persekutuan Terbesar (FPB). Penelitian ini bertujuan untuk mengembangkan media pembelajaran digital C-HOTIKA (Construct berbasis HOTS Matematika) sebagai sarana interaktif yang mendukung keterampilan berpikir tingkat tinggi siswa. Metode yang diterapkan adalah Penelitian dan Pengembangan (R&D) dengan model ADDIE yang terdiri dari tahapan analisis, desain, pengembangan, implementasi, dan evaluasi. Subjek penelitian adalah guru dan 29 siswa kelas V SDN 016 Samarinda Ulu. Hasil validasi menunjukkan tingkat validitas sebesar 94,03% (sangat valid), sedangkan uji praktikalitas memperoleh respon guru sebesar 94,5% dan siswa sebesar 93,8% (sangat praktis). Media C-HOTIKA dinilai menarik, mudah digunakan, membantu pemahaman konsep, dan cocok diterapkan dalam pembelajaran berbasis HOTS pada Kurikulum Mandiri.
Copyright (c) 2025 Ririt Riyanti, Andi Asrafiani Arafah, Sukriadi, Fara Virgianita Pangadongan https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan Model Project Based Learning (PjBL) Berbasis Etno STEM dalam meningkatkan Literasi Numerasi Siswa di Sekolah Dasar
The low level of numeracy literacy among students in the city of Bima and West Nusa Tenggara requires more contextual and relevant learning innovations that are relevant to local life and culture. This study aims to develop an Project Based Learning (PjBL) based ethno-STEM to improve the numeracy literacy of elementary school students. The research method used a research and development approach, which included needs analysis, model design, expert validation, limited trials, and effectiveness testing at SDN 11 Kota Bima. Data collection instruments consisted of questionnaires, observation sheets, and numeracy literacy tests. The validity test results showed that the Project Based Learning (PjBL) based ethno-STEM met the criteria for content, language, and implementation feasibility. The application of the model in field trials provided a significant improvement in students' numeracy literacy skills compared to conventional learning, as indicated by higher post-test scores and positive responses from teachers and students. These findings confirm that the integration of local culture in project-based learning effectively improves students' understanding of mathematical concepts and problem-solving skills. This study concludes that the Project Based Learning (PjBL) based ethno-STEM can be an alternative contextual and relevant learning innovation to improve numeracy literacy in elementary schools
Copyright (c) 2025 Dewi Sartika, Mikrayanti Mikrayanti, Alimudin Alimudin, Afan Julkarnain https://creativecommons.org/licenses/by-nc-sa/4.0
Efektivitas Pembelajaran Geometri Berbasis Etnomatematika dengan Pendekatan Problem-Based Learning Berbantuan Perangkat Mobile terhadap Disposisi Matematis
Abstract This article analyses the effectiveness of ethnomathematics-based geometry learning using a Problem-Based Learning (PBL) approach supported by mobile devices on junior high school students’ mathematical disposition. A quantitative approach with a pre-experimental one-group pretest–posttest design was employed in this study. The sample consisted of 30 eighth-grade students selected through a cluster random sampling technique from a public junior high school in Yogyakarta, Indonesia. The instrument used was a mathematical disposition questionnaire comprising 16 validated statements. Data were analysed descriptively and inferentially using the Shapiro–Wilk test, one-sample t-test, and one-population proportion test. The results revealed a significant improvement in students’ mathematical disposition after implementing ethnomathematics-based geometry learning through the PBL approach assisted by mobile devices. The average questionnaire score increased from 48 (poor category) to 59 (good category), with 90% of students achieving or exceeding the good category threshold. These findings indicate that integrating ethnomathematics into problem-solving activities facilitated by mobile technology can foster students’ confidence, persistence, interest, and comfort in discussing and learning mathematics. Keywords:Ethnomathematics; Mobile; Mathematical Disposition; Problem-Based Learning
Copyright (c) 2025 Darojatun Fikri, Hartono https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan E-Modul Berbasis Ethno-STEM pada Bangunan Tradisional Uma Lengge untuk Meningkatkan Kemampuan Representasi Matematis Siswa SMP
The development of digitalization technology in the world of education emphasizes the need for progressive learning innovation, not only focusing on procedural memorization, but it is important to integrate geometric concepts with cultural values ​​and STEM approaches. As for alternatives that answer these needs, the purpose of this study is to develop an Ethno-STEM based e-module that focuses on the Uma Lengge building as a geometry learning context to improve the mathematical representation abilities of junior high school students. In the development of this e-module, the ADDIE development model is used, which is Analysis, Design, Development, Implementation, Evaluation. In the data collection process by conducting observations, as well as using tests, andquestionnaires. The feasibility test obtained an e-module with a valid category in the material and design aspects, in addition, responses by students regarding the practicality of the module are in the practical category for use in learning, while the effectiveness test of the e-module showed an increase in students' representation abilities in the post-test results with a moderate to high increase, which indicates a significant difference from the pre-test results. So the Ethno-STEM based e-module focusing on the Uma Lengge building with the context of geometry material is effectively used to improve the mathematical representation abilities of junior high school students.
Copyright (c) 2025 Andi Hasliyati Ike Safitri -, Arnasari Merdekawati Hadi, Ilham Dwi Novaldin, Putri Agustina https://creativecommons.org/licenses/by-nc-sa/4.0
Komunikasi Matematis dalam Pembelajaran Matematika Berbasis Permainan Tradisional: Systematic Literature Review pada Budaya Nusantara
Mathematical communication skills are an essential competency in 21st century mathematics learning. Traditional approaches, which are generally abstract and lack context, are often a barrier to their development. This study aims to systematically examine various studies related to mathematical communication in traditional game-based mathematics learning in the cultural context of the archipelago. The method used is Systematic Literature Review (SLR) with PRISMA guidelines, as many as 15 articles published in 2020–2025 obtained from the selection of Google Scholar, ERIC, and Dimensions databases. The results of the study analysis showed that traditional games such as engklek, congklak, and marbles were most often used in learning and were proven to be effective in improving students' mathematical communication both verbally and in writing. This approach also contributes to increased learning motivation, concept understanding, and character building. These findings support the relevance of ethnomathematical approaches that link mathematics to local cultural practices. It was also found that learning mathematics that integrates traditional games not only strengthens academic competence, but also fosters an appreciation of contextual and meaningful local wisdom for Indonesian students.
Copyright (c) 2025 St. Nur Khalifah Ali Ali, Suradi, Rosidah https://creativecommons.org/licenses/by-nc-sa/4.0
Dinamika Pemahaman Konseptual Siswa dalam Pembelajaran Matematika Berbantuan Photomath
Conceptual understanding is at the core of meaningful mathematics learning, as it helps students reason about relationships between ideas and apply mathematical principles logically. However, the learning process in the classroom still focuses heavily on procedural aspects, so that students tend to memorize solution steps without understanding their meaning. This study aims to analyze the dynamics of changes in students' conceptual understanding when using photomath in mathematics learning. The approach used is qualitative with an exploratory case study design, involving six 10th grade students at SMA Negeri 2 Dompu who have applied digital technology in learning. Data were obtained through observation, in-depth interviews, field notes, and documentation, then analyzed through data reduction, data presentation, conclusion drawing, and verification. The results showed that the development of students' conceptual understanding occurred through three main phases, namely algorithmic interpretation, conceptual reflection, and mathematical meaning integration. Photomath functions as a cognitive mediator that helps students transition from procedural thinking to a more reflective and deeper conceptual understanding. The effectiveness of this process is greatly influenced by the role of teachers in directing the use of technology to focus on meaning construction. This study confirms that technology-assisted mathematics learning can enrich conceptual understanding if it is designed to be reflective and oriented towards strengthening reasoning
Copyright (c) 2025 Aminullah Aminullah https://creativecommons.org/licenses/by-nc-sa/4.0
Eksplorasi Penyebab Ketidaksukaan dan Kecemasan Gen Z Terhadap Matematika: Studi Kasus Nusa Tenggara Barat
Penelitian ini bertujuan untuk menganalisis sikap siswa Generasi Z di Nusa Tenggara Barat terhadap pelajaran matematika, mengidentifikasi faktor penyebab ketidaksukaan, serta menggambarkan indikator kecemasan matematika yang dialami siswa. Penelitian melibatkan 195 siswa dari sembilan kabupaten/kota melalui penyebaran angket skala Likert dan pertanyaan terbuka. Data dianalisis secara deskriptif kuantitatif dan diperkuat dengan analisis kualitatif. Hasil penelitian menunjukkan bahwa sikap siswa terhadap matematika cenderung negatif, dengan 68,8% siswa berada pada kategori netral hingga tidak suka, dan hanya 31,3% yang menyatakan suka atau sangat suka. Faktor utama yang menyebabkan ketidaksukaan meliputi soal yang dianggap terlalu sulit (49%), metode mengajar monoton (43,6%), dan materi yang terasa abstrak (40%). Selain itu, siswa juga menunjukkan tingkat kecemasan yang tinggi, terutama ketakutan mendapat nilai rendah, takut salah, dan takut ditertawakan teman. Temuan kualitatif menegaskan bahwa pengalaman negatif, tekanan sosial, serta gaya mengajar guru turut memperkuat kecemasan dan ketidaksukaan siswa terhadap matematika. Secara keseluruhan, penelitian ini menegaskan perlunya strategi pembelajaran yang lebih variatif, kontekstual, dan ramah siswa guna meningkatkan minat serta mengurangi kecemasan matematika pada siswa Generasi Z.
Copyright (c) 2025 Muhammad Alwi Baehaqi, Fadli Mahmudi Saputra, Muhammad Apriyn Alan Maulana, Tabita Wahyu Triutami https://creativecommons.org/licenses/by-nc-sa/4.0
Analisis Faktor-Faktor Penggunaan Quizizz Untuk Menunjang Kemampuan Numerasi Siswa SMP Kota Bengkulu
Indonesia’s low numeracy performance in international assessments highlights the need for more effective and engaging instructional strategies. This study analyzed the influence of the Quizizz application on supporting the numeracy ability of junior high school students in Bengkulu City. Using a quantitative approach, data were collected from 70 students through a Likert-scale questionnaire measuring ten indicators of Quizizz utilization. Multiple linear regression analysis using SPSS 25 revealed that the model was statistically significant (F = 3.303; p = 0.002), with the independent variables collectively explaining 36.3% of the variance in numeracy skills (Adjusted R² = 0.253). Two indicators—conceptual understanding (x1) and critical–creative thinking (x5)—significantly affected numeracy ability, whereas other indicators showed no partial influence. The model met classical assumption requirements, including linearity and homoscedasticity. These findings confirm that Quizizz is an effective digital learning tool that enhances students’ numeracy through interactive and motivating learning experiences.
Copyright (c) 2025 Desventri Etmy, Agus Susanta, Nurul Astuty Yensy https://creativecommons.org/licenses/by-nc-sa/4.0
Transformasi Data Menjadi Kebijakan: Studi Clustering Hierarki pada Layanan Keagamaan Kementerian Agama
Indonesia adalah negara dengan keberagaman agama, budaya, dan kondisi geografis yang sangat kaya. Untuk memastikan kebijakan layanan keagamaan yang merata dan adil, penelitian ini menganalisis keberagaman karakteristik daerah. Tujuannya adalah untuk mengklasifikasikan provinsi-provinsi di Indonesia berdasarkan data layanan keagamaan. Metode yang digunakan adalah hierarchical clustering dengan lima algoritma dan tiga ukuran jarak. Kombinasi average linkage dan jarak chebyshev menghasilkan koefisien korelasi cophenetic tertinggi (0,969), menjadikannya algoritma paling optimal. Uji silhouette coefficient menunjukkan dua klaster sebagai jumlah optimal, dengan nilai silhouette coefficient sebesar 0,736, dan uji ANOVA memvalidasi bahwa perbedaan antar klaster signifikan. Klaster pertama terdiri dari Provinsi Aceh, Jawa Timur, Jawa Barat, dan Jawa Tengah, yang memiliki rata-rata setiap variabel lebih tinggi. Klaster kedua mencakup seluruh provinsi lainnya, termasuk DKI Jakarta, yang menunjukkan bahwa masih ada peluang untuk peningkatan kualitas layanan keagamaan. Temuan ini memberikan gambaran penting bagi Kementerian Agama untuk terus berupaya meningkatkan kualitas layanan keagamaan di seluruh wilayah Indonesia, dengan fokus pada perbaikan aspek layanan yang lebih luas.
Copyright (c) 2025 Yossy Candra, Andrea Tri Rian Dani https://creativecommons.org/licenses/by-nc-sa/4.0
The Effect of Problem Based Learning Model with STEAM Approach on Mathematical Critical Thinking Ability
This study aims to determine the effect of the problem-based learning model with the STEAM approach on students' critical thinking skills and their response to the model. Using a quantitative method with a quasi-experimental design, this study involved ninth-grade students with similar academic characteristics from a junior high school in Serang City. The sample consisted of 72 students from two classes: IX E as the experimental class that applied PBL-STEAM and IX A as the control class that used the collaborative model. The results showed that 1) students' critical thinking skills with the PBL-STEAM model were better than students who applied the collaborative model based on the experimental class posttest results with an average value of 83.33, superior to the control class, which was only 78.19. 2) Analysis of student response questionnaires showed that the application of the PBL-STEAM model received a positive response and was able to increase student knowledge of the material taught. 3) The PBL-STEAM model is effective in improving students' critical thinking skills so that it becomes one of the alternative learning models that can be applied by teachers in learning mathematics.
Copyright (c) 2025 Siti Nurkhalizah, Cecep Anwar Hadi Firdos Santosa https://creativecommons.org/licenses/by-nc-sa/4.0
Strategies for Controlling the Spread of Cholera through Vaccination, Education, and Quarantine; Model Analysis and Simulation
Cholera is an infectious disease transmitted through water contaminated with Vibrio cholerae bacteria. This disease remains a public health challenge, especially in areas with poor sanitation. This study developed an SVIQR-B mathematical model to analyze the dynamics of cholera spread, taking into account the effects of quarantine, vaccination, and environmental hygiene education. The analysis was conducted on disease-free and endemic equilibrium points using a local stability approach based on the basic reproduction number (R0). The results showed that when R0 < 1 , the disease would disappear from the population, while R0 > 1 indicated the potential for endemicity. Sensitivity analysis and numerical simulation results indicate that an increase in the transmission rate and a decrease in vaccine effectiveness cause an increase in the value, while an increase in vaccination coverage and the effectiveness of education contribute to a decrease in infection rates. These findings emphasize the importance of implementing integrated medical and educational interventions in efforts to control cholera in a sustainable manner.
Copyright (c) 2025 Agusyarif Rezka Nuha, La Ode Nashar, Andi Agung, Bertu Rianto Takaendengan, Widyastutifajri Nuha https://creativecommons.org/licenses/by-nc-sa/4.0
Optimalisasi working memory siswa melalui desain worked example berbasis cognitive load theory pada materi SPLDV
Systems of Linear Equations with Two Variables (SPLDV) contain numerous symbols and present high complexity in their solution processes, which can create substantial cognitive demands for middle school students. Instructional design that minimizes irrelevant cognitive load while optimizing schema formation is essential to accommodate the limited capacity of working memory. Cognitive Load Theory (CLT) offers effective strategic alternatives for managing cognitive load during learning, particularly in reducing extraneous cognitive load. One recommended approach is the implementation of worked example strategies. This article focuses on developing a worked example design for SPLDV material based on CLT principles. The research comprises three phases: examining the cognitive load of SPLDV content, reviewing fundamental CLT principles, and constructing instructional design using worked example strategies. The research produces a worked example design featuring structured solution steps that eliminate split attention and redundancy effects, successfully reducing extraneous cognitive load and enhancing working memory effectiveness in learning SPLDV. These findings can serve as a foundation for further design development or empirical validation in broader educational contexts.
Copyright (c) 2025 Pratama Wahyu Purnama, Indah Nikmatul Hidayati https://creativecommons.org/licenses/by-nc-sa/4.0
Analisis Berpikir Komputasional Siswa Dalam Memecahkan Masalah Kontekstual Matematika
Berpikir komputasional merupakan salah satu keterampilan kunci yang perlu diajarkan kepada semua siswa karena berperan penting membentuk cara berpikir logis dan sistematis dalam menyelesaikan masalah. Penelitian ini bertujuan mendeskripsikan proses berpikir komputasional siswa dalam memecahkan masalah kontekstual matematika siswa kelas VIII SMPN 8 Mataram. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subjek pada penelitian yaitu 6 siswa terpilih dari 33. Data penelitian terdiri atas jawaban siswa dan hasil wawancara semi terstruktur. Proses berpikir komputasional siswa dilihat melalui indikator dekomposisi, pengenalan pola, abstraksi, dan berpikir algoritma. Hasil penelitian menunjukkan bahwa siswa dengan kemampuan berpikir komputasional kategori tinggi mampu menyelesaikan masalah hingga tahap berpikir algoritma, meskipun masih terdapat kesalahan. Siswa pada kategori sedang umumnya juga mencapai tahap algoritma, namun sebagian hanya berhenti pada tahap pengenalan pola dan masih ditemukan kesalahan. Sementara itu, siswa dengan kemampuan rendah hanya mampu memenuhi sebagian tahap dekomposisi sehingga tampak lemah pada seluruh indikator.
Copyright (c) 2025 Citra Faradillah, Nyoman Sridana, M. Gunawan Supiarmo https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan Model Pembelajaran Realistik Matematik Berbasis Etnomatematika Rumah Adat Suku Sasak Berorientasi Pada Koneksi dan Pemahaman Konsep Matematika Peserta Didik SMP
Penelitian ini bertujuan mengembangkan Model Pembelajaran Matematika Realistik Berbasis Etnomatematika Rumah Adat Suku Sasak yang berorientasi pada kemampuan koneksi dan pemahaman konsep matematika peserta didik SMP. Pengembangan model dievaluasi melalui tiga aspek, yaitu validitas, kepraktisan, dan keefektifan. Penelitian menggunakan metode Research and Development (R&D) dengan model ADDIE yang meliputi tahap analisis, desain, pengembangan, implementasi, dan evaluasi. Instrumen penelitian terdiri atas lembar validasi, lembar kepraktisan untuk pendidik dan peserta didik, lembar observasi keterlaksanaan pembelajaran, serta tes kemampuan koneksi dan pemahaman konsep matematika. Data dianalisis secara kuantitatif-kualitatif dan kuantitatif-inferensial. Hasil validasi menunjukkan model dan perangkat pembelajaran berada pada kategori valid dengan skor kevalidan rata-rata di atas 80%. Uji kepraktisan menunjukkan skor penilaian pendidik 84,28% dan peserta didik 81,96%, dengan keterlaksanaan pembelajaran di atas 80%. Uji keefektifan melalui one sample t-test memperoleh nilai sig. (1-tailed) < 0,05, menandakan model efektif meningkatkan kemampuan koneksi dan pemahaman konsep matematika peserta didik dengan nilai rata-rata ≥ 71. Dengan demikian, model yang dikembangkan valid, praktis, dan efektif untuk diterapkan dalam pembelajaran matematika SMP berbasis budaya lokal Sasak.
Copyright (c) 2025 Lalu Wahyu Rizaldi, Marsigit https://creativecommons.org/licenses/by-nc-sa/4.0
Identification of Spatial Autocorrelation in Cases of Complaints About Illegal Online Loans in Indonesia
The development of digital financial services has made it easier for people to access technology-based loans, but this has also been accompanied by an increase in illegal online lending practices, which have generated numerous complaints from consumers in various regions. This situation indicates the potential for uneven distribution of cases across regions. This study aims to identify interregional spatial relationships in data on the number of complaints about illegal online loans across provinces in Indonesia. This study uses data on the number of complaints about illegal online loans from January to June 2025. The analytical methods used include descriptive statistics, the Moran Index to measure global spatial autocorrelation, and the Local Indicator of Spatial Autocorrelation (LISA) to detect local clusters. The results show positive spatial autocorrelation, where provinces with a high number of complaints tend to be close to each other, particularly areas with high levels of urbanization and digital activity such as DKI Jakarta, West Java, Central Java, and Banten. Thus, the distribution of complaints about illegal online loans is not random but is influenced by geographic proximity and regional socioeconomic characteristics.
Copyright (c) 2025 Meirinda Fauziyah, Devita Dwi Putri, Andrea Tri Rian Dani, Hardina Sandariria, Nazmi Soraya https://creativecommons.org/licenses/by-nc-sa/4.0
Concept Image Siswa dalam Materi Barisan dan Deret pada Pembelajaran Berdiferensiasi
This study aims to describe students' concept images on sequences and series in differentiated learning and to examine the concept image gap between students, teachers, and mathematicians. This study used a qualitative approach with a didactic design and a hermeneutic phenomenology method. The research subjects included students, teachers, and mathematicians, who were selected purposively. Data were collected through learning observations, questionnaires, and in-depth interviews, and then analyzed using data reduction, data presentation, and conclusion-drawing techniques. The results showed that students' conceptual images of sequences and series were dominated by intuitive, visual, and procedural understandings. Students were able to recognize real-world patterns and contexts, but tended to rely on repeated addition or multiplication rather than using formal definitions and symbolic formulas. In geometric sequences and series, a concept image conflict was found due to students' difficulty in understanding exponential growth patterns. Although differentiated learning provides space for diverse student learning styles, the results show that this approach does not fully guarantee the formation of a complete formal conceptual understanding. Therefore, strengthening conceptual scaffolding is needed so that students' concept images are more aligned with the correct concept definition. Penelitian ini bertujuan untuk mendeskripsikan concept image siswa pada materi barisan dan deret dalam pembelajaran berdiferensiasi serta mengkaji kesenjangan concept image antara siswa, guru, dan matematikawan. Penelitian ini menggunakan pendekatan kualitatif dengan desain didaktis dan metode fenomenologi hermeneutik. Subjek penelitian meliputi siswa, guru, dan matematikawan, yang dipilih secara purposif. Pengumpulan data dilakukan melalui observasi pembelajaran, kuesioner, serta wawancara mendalam, kemudian dianalisis menggunakan teknik reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa concept image siswa pada materi barisan dan deret didominasi oleh pemahaman intuitif, visual, dan prosedural. Siswa mampu mengenali pola dan konteks nyata, namun cenderung mengandalkan penjumlahan atau perkalian berulang dibandingkan penggunaan definisi formal dan rumus simbolik. Pada barisan dan deret geometri, ditemukan conflict concept image akibat kesulitan siswa dalam memahami pola pertumbuhan eksponensial. Meskipun pembelajaran berdiferensiasi memberikan ruang bagi keberagaman cara belajar siswa, hasil penelitian menunjukkan bahwa pendekatan ini belum sepenuhnya menjamin terbentuknya pemahaman konseptual formal yang utuh. Oleh karena itu, diperlukan penguatan scaffolding konseptual agar concept image siswa lebih selaras dengan concept definition yang benar.
Copyright (c) 2025 Dita Oktavihari, Junaidi Junaidi, Gilang Primajati, M. Gunawan Supiarmo, Eka Kurniawan, Alvano Tugas Hendrawan https://creativecommons.org/licenses/by-nc-sa/4.0
From the Qur'an to Al-Khwarizmi: Traces of Mathematics in Islamic Intellectual Heritage
The traces of mathematics in the Islamic intellectual heritage highlight Al-Khwarizmi's fundamental contributions and the mathematical implications of the Qur'an. This study analyzes the central role of Islamic civilization in preserving and developing mathematics, driven by both religious and practical motivations. A literature review method is used to synthesize data from various academic sources. The results show that Al-Khwarizmi revolutionized algebra and disseminated the Hindu-Arabic number system, forming the basis of modern algorithms. Furthermore, the Qur'an implicitly and explicitly contains mathematical concepts that inspire an understanding of divine order and its application in Islamic law. The conclusion affirms the symbiotic relationship between faith and reason in advancing mathematics in the Islamic world, providing a balanced perspective on global scientific progress
Copyright (c) 2025 Munhar, Surya Sari Faradiba https://creativecommons.org/licenses/by-nc-sa/4.0
Evaluating Swarm-Genetics for VRPTW: Robustness Across Seeds and Fleet Efficiency On Solomon Benchmarks
The Vehicle Routing Problem with Time Windows (VRPTW) is a challenging NP-hard problem in logistics optimization. This study evaluates a Swarm-Genetics algorithm, a hybrid method combining Particle Swarm Optimization (PSO) and Genetic Algorithm (GA) with swarm regeneration and adaptive parameter control. The algorithm was tested on 57 Solomon benchmark instances (C, R, RC) under three random seeds to assess robustness. Results show that the algorithm is robust across seeds, producing stable outcomes with minimal variation. It frequently preserves fleet efficiency, often matching the Best Known Solutions (BKS) in vehicle count, particularly for clustered instances. However, routing distances remain less competitive, with average gaps of about 10% for clustered, 12–13% for random, and over 20% for mixed cases. Convergence analysis further indicates rapid early improvements but stagnation in complex distributions. Overall, Swarm-Genetics provides a robust and fleet-efficient framework, though further enhancements are needed to improve distance quality.
Copyright (c) 2025 Aprizal Resky, Zaitun Zaitun, Dhirga Tandi Teppa https://creativecommons.org/licenses/by-nc-sa/4.0
Penerapan Strategi Pembelajaran Berdiferensiasi Berorientasi Kebutuhan Belajar untuk Meningkatkan Minat Belajar Matematika
The low interest in learning mathematics among students is a common problem in education. Students tend to lack enthusiasm and motivation in participating in mathematics learning due to conventional teaching methods that have not accommodated the diversity of student characteristics. This study aims to improve the mathematics learning interest of seventh-grade students at SMP Negeri 6 Tinambung through the implementation of differentiated learning strategies. This research is a classroom action research using the Kemmis and McTaggart model design in 2 cycles consisting of planning, action, observation, and reflection. The research subjects were 22 seventh-grade students at SMP Negeri 6 Tinambung. The results of data analysis showed that the average percentage of students' mathematics learning interest questionnaire increased from 71.23% to 79.83% (high category) with an increase of 12.07%. The average percentage of teacher activity increased from 90% to 98.33% (Very Good category) with an increase of 8.33%, and the average percentage of student activity increased from 86% to 97% (Very Good category) with an increase of 12.79%. Based on these results, it can be concluded that the implementation of differentiated learning strategies can improve the mathematics learning interest of seventh-grade students at SMP Negeri 6 Tinambung.
Copyright (c) 2025 Haslianti Haslianti, Sartika Arifin, Nursafitri Amin, Nurfadilah Mahmud https://creativecommons.org/licenses/by-nc-sa/4.0
Penerapan Pewarnaan Graf pada Pembagian Kamar Asrama Mahasiswi Universitas Mataram dengan Algoritma Welch Powell
Room assignments at the female dormitory of Universitas Mataram are still done manually, often placing students from the same study program and semester in the same room. This condition limits academic diversity, which is essential to foster social interaction and enhance academic performance. This study aims to apply graph coloring theory to address this issue. Each student is represented as a vertex, and connections between students with the same academic background are represented as edges. The Welch Powell algorithm is applied to color the vertices so that no adjacent vertices share the same color, ensuring students with similar academic characteristics are not assigned to the same room. This applied research uses Visual Basic for Applications (VBA) Macro in Microsoft Excel to automate the creation of matrices and implementation of the algorithm. The results show that this approach is effective and efficient in grouping students into rooms while promoting academic heterogeneity. This method is expected to serve as a practical solution for dormitory management in other higher education institutions.
Copyright (c) 2025 Ratih Dhamayyana Dwi Cinthami, Sudi Prayitno, Gilang Primajati https://creativecommons.org/licenses/by-nc-sa/4.0
Penerapan Metode Fuzzy Backpropagation Neural Network dalam Peramalan Saham PT. Bank Rakyat Indonesia (Persero) Tbk. (IDX: BBRI)
The Fuzzy Backpropagation Neural Network (FBPNN) is a forecasting approach based on neural networks that applies the backpropagation learning algorithm, where input and output data are expressed in fuzzy membership values. The construction of the FBPNN model consists of three key phases: fuzzification, neural network training, and defuzzification. In the defuzzification stage, the Smallest of Maximum (SOM) technique is used to determine the lowest value among the members with the highest degree of membership. This research employs FBPNN to forecast the weekly closing prices of PT Bank Rakyat Indonesia (Persero) Tbk. (IDX: BBRI). The dataset is divided into 90% for training and 10% for testing. The results indicate that the best network architecture is 20–4–2, producing a Root Mean Square Error (RMSE) of 728,5308 for training data and 178,2089 for testing data. The Mean Absolute Percentage Error (MAPE) reached 10,3620% (classified as good) in training and 3,9189% (classified as very good) in testing. The developed model was then applied to forecast the next five periods, showing a tendency of increasing stock prices
Copyright (c) 2025 Budi Cahyono Cahyono, Ika Purnamasari, Rito Goejantoro https://creativecommons.org/licenses/by-nc-sa/4.0
Fuzzy geographically weighted clustering in grouping regencies/cities in Kalimantan island based on the human development index indicators
Fuzzy Geographically Weighted Clustering (FGWC) is a method of development of fuzzy clustering by considering geographical elements in the process of regional clustering. This study aims to identify the number and characteristics of optimal clusters formed using the FGWC algorithm with the validity index of the Partition Coefficient Index (PCI). The data analyzed includes HDI indicators for all regencies/cities on the island of Kalimantan in 2024 consisting of the variables Life Expectancy, Length of Schooling, Average School Length, Expenditure per Capita, Open Unemployment Rate, and Percentage of Poor Population. Based on the results of the study, the optimal number of clusters was obtained as many as 2 clusters with a PCI of 0.516. Cluster 1 consists of 18 regencies/cities covering 9 cities and 9 regencies with higher average values of HDI indicator variables, while cluster 2 consists of 38 regencies which are all dominated by inland areas with lower average values of HDI indicator variables.
Copyright (c) 2025 Milda Alfitri Diani, Memi Nor Hayati, Rito Goejantoro https://creativecommons.org/licenses/by-nc-sa/4.0
The Pengaruh Model CORE (Connecting, Organizing, Reflecting, Extending) Terhadap Kemampuan Berpikir Kritis Matematis Siswa Sekolah Menengah Atas
Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran CORE (Connecting, Organizing, Reflecting, Extending) terhadap kemampuan berpikir kritis matematis siswa kelas X MAN 1 Medan. Jenis penelitian ini adalah kuasi eksperimen dengan desain Nonequivalent Control Group Design. Populasi penelitian mencakup seluruh siswa kelas X MAN 1 Medan tahun pelajaran 2025/2026. Sampel penelitian terdiri atas dua kelas yang dipilih dengan teknik purposive sampling, yaitu kelas X-5 sebagai kelas eksperimen yang diajar menggunakan model pembelajaran CORE dan kelas X-8 sebagai kelas kontrol yang diajar dengan pembelajaran langsung. Instrumen penelitian berupa tes uraian kemampuan berpikir kritis matematis yang telah diuji validitas dan reliabilitasnya. Data dianalisis menggunakan uji normalitas, homogenitas, uji-t sampel independen, N-Gain, dan Cohen’s d. Hasil analisis menunjukkan nilai thitung = 4,368 > ttabel = 1,999, yang berarti terdapat perbedaan signifikan antara kedua kelompok. Nilai Cohen’s d = 1,1 termasuk kategori efek tinggi, sedangkan nilai N-Gain = 0,621 berada pada kategori sedang. Dengan demikian, model pembelajaran CORE berpengaruh signifikan dan efektif dalam meningkatkan kemampuan berpikir kritis matematis siswa kelas X MAN 1 Medan.
Copyright (c) 2025 Murni Nova Ryanti, Asrin Lubis https://creativecommons.org/licenses/by-nc-sa/4.0
Implementasi Media POTRAME dalam Meningkatkan Pemahaman Matematis Materi Bangun Ruang Sisi Datar Siswa SMP
Penelitian ini bertujuan untuk mengimplementasikan media pembelajaran POTRAME: Pop-Up Book berbasis Augmented Reality pada Jajanan Tradisional Nusantara Guna Meningkatkan Pemahaman Matematis siswa SMP pada materi bangun ruang. Latar belakang penelitian didasarkan pada kesulitan siswa dalam memvisualisasikan objek tiga dimensi serta keterbatasan media pembelajaran yang tersedia. Penelitian ini menggunakan metode quasi eksperimen dengan desain one group pretest-posttest. Subjek penelitian terdiri atas 30 siswa SMP Negeri di Kota Semarang. Instrumen penelitian berupa tes pemahaman konsep. Hasil analisis data menunjukkan adanya peningkatan nilai dari pretest ke posttest. Selanjutnya, uji paired sample t-test menunjukkan adanya perbedaan signifikan antara nilai pretest dan posttest, sehingga dapat disimpulkan bahwa POTRAME efektif dalam meningkatkan pemahaman matematis siswa pada materi bangun ruang.
Copyright (c) 2025 Elisa Mutiara Fatmadewi, Faiza Jasmine Syakir, Verda Chamelia Putri, Adinda Cahya Fadillah, Fawwaz Haryolukito Pambudi, Nuriana Rachmani Dewi https://creativecommons.org/licenses/by-nc-sa/4.0
Penggunaan analisis diskriminan terhadap faktor-faktor yang mempengaruhi prestasi belajar transformasi geometri siswa SMP
Learning achievement is the result of a learning activity accompanied by changes achieved by a person (student) expressed in the form of symbols, numbers, letters, or sentences as a measure of the student's success levels. This study aims to determine the discriminant model and factors that significantly affect the learning achievement of geometry transformation in class IX UPTD SMP Negeri 4 Kupang. The subjects in this study were students of class IX UPTD SMP Negeri 4 Kupang which amounted to 100. The type of research in this study is quantitative research while the method used is survey method. Data analysis techniques in this study used discriminant analysis for two groups analyzed using SPSS software. From the results of the study obtained a discriminant model of the factors that affect the learning achievement of geometry transformation of class IX students in UPTD SMP Negeri 4 Kupang, namely where D is student learning achievement and X1 is learning motivation. The factor that has the most significant effect on the learning achievement of geometry transformation of grade IX students in UPTD SMP Negeri 4 Kupang is learning motivation.
Copyright (c) 2025 Nurul Anisa Rahmawati, Ch Krisnandari Ekowati, Fransiska Atrik Halim https://creativecommons.org/licenses/by-nc-sa/4.0
Efektivitas Model Pembelajaran Kooperatif Tipe STAD (Student Team Achievement Division) untuk Meningkatkan Pemahaman Konsep Matematis dan Self-efficacy Peserta Didik Kelas VIII SMP Negeri 2 Tebing Tinggi
This study aims to determine the effectiveness of the STAD cooperative learning model in improving mathematical concept understanding and self-efficacy among eighth-grade students at SMP Negeri 2 Tebing Tinggi. Using a Nonequivalent Pretest-Posttest Control Group Design, this study involved class VIII-5 as the experimental group and class VIII-6 as the control group, which were selected randomly. Based on the research conducted using the Mann-Whitney U test, the results showed that there was a difference in the average mathematical concept understanding of students between the experimental class using the STAD learning model and the control class using the direct learning model. This result was based on an Asymp Sig. (2-tailed) value of 0.002 < 0.05 and supported the research hypothesis that the use of the STAD model was effective in improving students' mathematical concept understanding. In terms of student self-efficacy, using the independent t-test, a Sig. (2-tailed) value of 0.650 > 0.05 was obtained, indicating that there was no difference in the average self-efficacy of students between the STAD learning model and the direct learning model.
Copyright (c) 2025 Fitri Humairoh, Sri Lestari Manurung https://creativecommons.org/licenses/by-nc-sa/4.0
Reorientasi Capaian Pembelajaran Matematika Fase E Berbasis Kompetensi ESD
This study aims to analyze and reorient the Mathematics Learning Outcomes (Capaian Pembelajaran/CP) of Phase E to align with eight key competencies of Education for Sustainable Development (ESD). Using a modified Krippendorff’s content analysis model with three stages, unitizing, coding, and reorienting, supported by a survey of high school students' perceptions in East Java, the study found that current Mathematics CPs remain largely conceptual-procedural and lack explicit sustainability integration. Nevertheless, each domain shows reorientation potential: Number through contexts of energy efficiency and sustainable resource use; Algebra and Functions through mathematical modeling of sustainability issues such as population growth and carbon emissions; Geometry through environmentally responsive spatial design; and Data and Probability through data literacy and ethical reasoning using environmental data. Survey findings indicate students’ strong cognitive and affective readiness for contextual and sustainability-oriented mathematics learning. Overall, the study highlights the need to shift mathematics education from learning about sustainability toward learning as and for sustainability, positioning mathematics as a tool for systemic, reflective, and ethical reasoning in addressing real-world sustainability challenges.
Copyright (c) 2025 Intan Wahyuna, Nurcholif Diah Sri Lestari, Rahmadina Dwi Orissa, Devid Rezqi Firmansyah https://creativecommons.org/licenses/by-nc-sa/4.0
Pengembangan LKPD Berbasis Model Pembelajaran RME dengan Pendekatan Saintifik untuk Meningkatkan Kemampuan Komunikasi Matematis
This research is a type of Research and Development (R&D) that adapts the ADDIE model. This research aims to develop LKPD based on the RME model with a scientific approach that is valid, practical, and effective in improving students' mathematical communication skills. Data collection techniques were carried out through interviews, observations, questionnaires, and mathematical communication ability tests. The data collection instruments were interview guidelines, expert validation questionnaires, and response questionnaires. The research was conducted at the UPT SMPN 1 Pardasuka in the odd semester of the 2025/2026 academic year. The results showed that the developed LKPD met the criteria of being valid, practical, and effective. The effectiveness test results showed that LKPD based on the RME model with a scientific approach could improve mathematical communication skills. The average N-Gain score for the experimental class was 0.717, which is in the high category, while the control class scored 0.633, which is in the moderate category. The t-test results showed a significance value of 0.034 < 0.050, which means that there was a difference between the two classes. Therefore, it can be concluded that LKPD based on the RME model with a scientific approach is effective in improving students' mathematical communication skills.
Copyright (c) 2025 Selvia Lovita, Caswita Caswita, Undang Rosidin https://creativecommons.org/licenses/by-nc-sa/4.0
Analisis Kesalahan Siswa Kelas VIII SMP dalam Menyelesaikan Soal Cerita Persamaan Linear Satu Variabel Berdasarkan Prosedur Polya
This study aims to describe the types and contributing factors of errors made by eighth-grade junior high school students in solving word problems on the topic of Systems of Linear Equations in One Variable (SPLSV) using the Polya procedure framework. The study used a descriptive qualitative approach and was conducted at the UPT SMP Negeri 3 Medan with students in grade VIII-D. The research instrument was a four-item SPLSV word problem test. Data were analyzed based on the four stages of Polya problem-solving: understanding the problem, planning a solution, implementing the solution plan, and rechecking. The results showed that students made errors at all stages of the Polya process. The highest percentage of errors occurred at the rechecking stage (85.8%), followed by the completion stage of planning (84.1%), planning a solution (75.8%), and understanding the problem (45.8%). Factors contributing to errors included low reading literacy skills, weak understanding of mathematical concepts, inability to create mathematical models, and a lack of metacognitive awareness to re-evaluate answers. These findings indicate the importance of learning that emphasizes conceptual understanding and the application of systematic problem-solving steps.
Copyright (c) 2025 Angel Stepany Rumapea, Yesika T.S. Pardosi, Asni Silitonga https://creativecommons.org/licenses/by-nc-sa/4.0