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Contact Name
Ekasatya Aldila Afriansyah
Contact Email
ekafrian@gmail.com
Phone
+628979550972
Journal Mail Official
plusminus@institutpendidikan.ac.id
Editorial Address
Jalan Terusan Pahlawan No 32, Sukagalih, Tarogong Kidul, Garut, Jawa Barat, Indonesia
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Kab. garut,
Jawa barat
INDONESIA
Plusminus: Jurnal Pendidikan Matematika
ISSN : 27982904     EISSN : 27982920     DOI : -
Core Subject : Education,
Plusminus: Jurnal Pendidikan Matematika (p-ISSN: 2798-2904 & e-ISSN: 2798-2798) mempublikasikan artikel ilmiah hasil penelitian dalam bidang pendidikan matematika yang belum pernah dipublikasikan. Penulis dapat berasal dari berbagai level, seperti mahasiswa (S1, S2, S3), guru, dosen, praktisi, maupun pemerhati pendidikan matematika. Plusminus terbit tiga kali dalam satu tahun, yaitu pada bulan Maret, Juli, dan November. Penerbit Plusminus adalah Program Studi Pendidikan Matematika Institut Pendidikan Indonesia.
Articles 328 Documents
The Impact of Inquiry Learning and Discovery Learning Models on Mathematical Communication Skills and Self-Confidence Puspitasari, Nitta; Mardiani, Dian; Azaria, Rahma; Nuraeni, Reni; Noordyana, Mega Achdisty
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 1 (2025): March
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i1.2605

Abstract

Kemampuan komunikasi matematis dan self-confidence penting dalam pembelajaran matematika. Namun, banyak siswa masih mengalami kesulitan dalam mengungkapkan ide matematis dan kurang percaya diri dalam pembelajaran. Diperlukan model pembelajaran inovatif seperti Inquiry Learning dan Discovery Learning yang melibatkan siswa secara aktif. Penelitian bertujuan menganalisis perbedaan peningkatan kemampuan komunikasi matematis dan self-confidence antara siswa yang dibelajarkan dengan model Inquiry dan Discovery Learning, serta mengkaji hubungan antara kedua kemampuan tersebut. Metode yang digunakan adalah kuasi eksperimen dengan desain pretest-posttest nonequivalent control group. Data dikumpulkan melalui tes dan kuesioner, dianalisis menggunakan Independent Sample t-test dan uji t’ untuk membandingkan peningkatan, serta uji korelasi Pearson untuk melihat hubungan antar variabel. Hasil penelitian menunjukkan adanya perbedaan peningkatan kemampuan komunikasi matematis dan self-confidence antara kedua model pembelajaran. Namun, tidak ditemukan hubungan antara peningkatan komunikasi matematis dan self-confidence dalam masing-masing model. Mathematical communication skills and self-confidence are two important aspects in learning mathematics. However, many students still have difficulty expressing mathematical ideas and lack confidence in learning. Therefore, innovative learning models such as Inquiry Learning and Discovery Learning are needed that actively involve students. This study aims to analyze the differences in the improvement of mathematical communication skills and self-confidence between students who are taught with the Inquiry and Discovery Learning models, and to examine the relationship between the two abilities. The method used is a quasi-experiment with a nonequivalent control group pretest-posttest design. Data were collected through tests and questionnaires, then analyzed using the Independent Sample t-test and t' test to compare improvements, and the Pearson correlation test to see the relationship between variables. The results showed differences in the improvement of mathematical communication skills and self-confidence between the two learning models. However, no relationship was found between the improvement of mathematical communication and self-confidence in each model.
Students’ Mathematical Literacy Skills Through Contextual Teaching and Learning and Problem-Based Learning Models Sofyan, Deddy; Puspitasari, Nitta; Maryani, Siti
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 1 (2025): March
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i1.2619

Abstract

Kemampuan literasi matematis siswa merupakan salah satu kemampuan kognitif yang penting untuk dikuasai oleh siswa. Berdasarkan PISA 2022 menunjukkan Indonesia masih tergolong rendah. Tujuan penelitian untuk mengetahui apakah ada perbedaan kemampuan literasi matematis siswa antara siswa yang mendapatkan model Contextual Teaching and Learning (CTL) dan Problem Based Learning (PBL). Metode yang digunakan dalam penelitian ini adalah kuasi eksperimen dengan populasi yaitu siswa SMP kelas VIII pada salah satu sekolah di kabupaten Garut. Teknik pengambilan sampel pada penelitian ini adalah purposive sampling. Teknik pengumpulan data yang digunakan yaitu tes dan observasi. Teknik analisis data menggunakan uji t dan gain ternormalisasi. Hasil penelitian ini yaitu: Terdapat perbedaan kemampuan literasi matematis siswa antara yang mendapatkan model CTL dan PBL; Kualitas peningkatan kemampuan literasi matematis siswa kelas CTL termasuk pada kategori sedang; Kualitas peningkatan kemampuan literasi matematis siswa kelas PBL  pada materi termasuk pada kategori sedang. Students' mathematical literacy skills is one of the important cognitive skills that students need to master. According to PISA 2022, Indonesia is still categorized as having a low level of performance. The purpose of this study is to determine whether there is a difference in students' mathematical literacy abilities between those who received the Contextual Teaching and Learning (CTL) model and those who received the Problem-Based Learning (PBL) model. The method used in this study is a quasi-experiment with the population being 8th-grade junior high school students at a school in Garut Regency. The sampling technique used in this study is purposive sampling. The data collection techniques used are tests and observations. Data analysis techniques include the t-test and normalized gain. The results of this study are: There is a difference in students' mathematical literacy skills between those who received the CTL model and those who received the PBL model; The improvement in mathematical literacy skills of students in the CTL class is in the medium category; The improvement in mathematical literacy skills of students in the PBL class is also in the medium category.
GeoGebra Enhances Mathematical Conceptual Understanding in Straight-Line Equations Afriansyah, Ekasatya Aldila; Aini, Gita Fitri
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 1 (2025): March
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i1.2820

Abstract

Rendahnya pemahaman konsep matematis menyebabkan siswa kesulitan memahami materi abstrak seperti persamaan garis lurus. Penelitian ini bertujuan menguji efektivitas GeoGebra sebagai media pembelajaran untuk meningkatkan pemahaman konsep tersebut. Metode yang digunakan adalah eksperimen (one-shot case study) dengan sampel 30 siswa kelas VIII di SMP Kec. Bayongbong (purposive sampling). Data dikumpulkan melalui tes uraian dan observasi aktivitas siswa, kemudian dianalisis secara statistik deskriptif dan inferensial (uji-z). Hasil menunjukkan bahwa GeoGebra tidak efektif dalam meningkatkan pemahaman konsep matematis. Temuan ini menyiratkan perlunya integrasi GeoGebra dengan metode lain, seperti scaffolding guru atau pembelajaran berbasis masalah. The limited comprehension of mathematical concepts by students hinders their ability to grasp abstract material, such as linear equations. The objective of this study is to assess the efficacy of GeoGebra as a learning medium to enhance comprehension of the concept. The method employed was an experiment (one-shot case study) with a sample of 30 students in class VIII at SMP Kec. Bayongbong (purposive sampling). The data were collected through the implementation of descriptive tests and student activity observations. Subsequent to the collection of the aforementioned data, the data were analyzed descriptively and inferentially (z-test). The findings indicated that GeoGebra did not demonstrate efficacy in enhancing mathematical concept comprehension. This finding suggests the necessity for GeoGebra integration with alternative methods, such as teacher scaffolding or problem-based learning.
Students' Errors in Solving Mathematical Statistics Problems Based on Sensing and Intuiting Personality Types Anggraini, Syarifa; Nasution, Eline Yanty Putri
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2606

Abstract

Kesalahan mahasiswa dalam menyelesaikan soal statistika matematika menjadi salah satu indikator rendahnya pemahaman konsep statistik di perguruan tinggi. Penelitian ini difokuskan pada analisis pola kesalahan yang dilakukan oleh mahasiswa saat mengerjakan soal statistika matematika, dengan mempertimbangkan tipe kepribadian sensing dan intuiting. Dalam studi kasus ini, sebanyak 36 siswa dengan tipe kepribadian sensing dan intuiting turut serta sebagai partisipan. Instrumen penelitian mencakup tes kepribadian MBTI (Myers-Briggs Type Indicator), tes kemampuan statistika, pedoman wawancara semi-terstruktur, dan lembar observasi. Data dianalisis melalui kondensasi data, penyajian data, dan penarikan Kesimpulan secara interaktif. Temuan penelitian mengungkapkan bahwa mahasiswa dengan tipe kepribadian sensing lebih sering melakukan kesalahan pada tahap transformasi dan encoding, sedangkan tipe intuiting lebih sering salah dalam keterampilan proses dan encoding. Temuan ini mengindikasikan bahwa tipe sensing kesulitan mengubah informasi verbal menjadi model matematika, sementara intuiting kurang sistematis dalam penyelesaian dan penyajian jawaban. Dengan demikian, pola kesalahan mahasiswa dalam mengerjakan soal statistika matematika dipengaruhi oleh tipe kepribadian mereka. Student errors in solving mathematical statistics problems are one indicator of the low level of conceptual understanding of statistics in higher education. This study focuses on analysing the patterns of errors made by students when working on mathematical statistics problems, taking into account their sensing and intuitive personality types. In this case study, as many as 36 students with sensing and intuiting personality types participated as participants. The research instruments included the MBTI (Myers-Briggs Type Indicator) personality test, a statistics ability test, semi-structured interview guidelines, and observation sheets. The data were analysed through data condensation, data display, and interactive conclusion drawing. The findings of the study revealed that students with sensing personality types are more likely to make mistakes at the transformation and encoding stages, while intuiting types more frequently made errors in process skills and encoding. These findings suggest that sensing types struggle to convert verbal information into mathematical models, while intuiting types are less systematic in their problem-solving procedures and in presenting final answers. Thus, the pattern of students' mistakes in doing mathematical statistics problems is influenced by their personality type.
A Decade of Ethnomathematics Research (2015–2025): A Cross-Country Analysis of Global and Local Perspectives Madu, Aleksius
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2813

Abstract

Studi etnomatematika telah berkembang pesat sebagai sebuah disiplin ilmu yang meneliti hubungan antara matematika dan budaya di seluruh dunia. Artikel ini menyajikan perbandingan studi etnomatematika di berbagai negara, menyoroti perspektif global dan lokal yang mempengaruhi fokus penelitian, metodologi, dan implikasi pendidikan. Metode yang digunakan adalah metode tinjauan sistematis untuk mengumpulkan, mengevaluasi, dan mensintesis hasil penelitian terdahulu yang relevan dengan topik yang dikaji. Dengan menganalisis studi kasus dari beberapa wilayah geografis dan budaya, artikel ini mengidentifikasi pola umum dan perbedaan spesifik dalam praktik matematika budaya. Pemahaman komparatif ini diharapkan dapat memperkaya wawasan tentang universalitas dan partikularitas matematika serta membuka jalan bagi pengembangan kurikulum yang lebih relevan secara budaya dan inklusif baik di tingkat global maupun lokal. The study of ethnomathematics has grown rapidly as a discipline that examines the relationship between mathematics and cultures worldwide. This article presents a comparative analysis of ethnomathematics studies across different countries, highlighting the global and local perspectives that shape research focus, methodology, and educational implications. The method employed is a systematic review approach to collect, evaluate, and synthesize previous research results relevant to the topic under review. By analyzing case studies from several geographical regions and cultures, the article identifies common patterns and specific differences in cultural mathematical practices. This comparative understanding is expected to enrich insights into the universality and particularity of mathematics, paving the way for the development of more culturally relevant and inclusive curricula at both global and local levels.
Rethinking How We Teach Derivatives Representation: The Framework of Hypothetical Learning Trajectory Prihandhika, Aditya; Azizah, Nur
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2816

Abstract

Konsep turunan merupakan prinsip dasar dalam Kalkulus untuk pengajaran matematika di tingkat sekolah dan universitas. Namun demikian, definisi yang mencakup beberapa representasi terkadang membuat konsep turunan sangat sulit dipahami. Tujuan penelitian ini adalah untuk mengkaji representasi konsep turunan yang dipahami oleh partisipan. Penelitian ini menggunakan metodologi kualitatif untuk menyelidiki fenomena tertentu. Data penelitian dikumpulkan melalui wawancara klinis yang dilakukan terhadap mahasiswa (N=5) dari salah satu universitas di Provinsi Jawa Barat. Teknik analisis data menggunakan triangulasi meliputi reduksi data, analisis data, dan penarikan kesimpulan. Temuan penelitian ini menunjukkan bahwa representasi konsep turunan bagi banyak partisipan masih terbatas pada konteks simbolis untuk memecahkan masalah prosedural. Representasi yang terbatas dapat menimbulkan hambatan epistemologis dalam menyelesaikan masalah konseptual. Temuan ini menjadi dasar untuk mengembangkan Hypothetical Learning Trajectory (HLT) yang mencakup tujuan, prakiraan proses pembelajaran, dan aktivitas untuk mendorong terciptanya pemahaman melalui representasi konsep yang beragam. The concept of a derivative is a fundamental principle in calculus that is essential for teaching mathematics at both the school and university levels. Nevertheless, definitions encompassing several representations sometimes render the concept of derivatives exceedingly challenging to comprehend. The objective of this research is to examine the representation of the derived notion as seen by the participants. The study employs qualitative methodologies through a case study framework to investigate certain phenomena. Research data collected via clinical interviews conducted with students (N=5) from a university in West Java Province. The data analysis technique using triangulation includes several stages, namely data reduction, data analysis, and drawing conclusions. The findings of this study suggest that the representation of derived concepts for many of participants remains confined to a symbolic context for solving procedural difficulties. The restricted representation can create epistemological obstacles in resolving conceptual issues. These findings serve as the foundation for developing a Hypothetical Learning Trajectory (HLT) design that encompasses objectives, forecasts of the learning process, and activities to promote the creation of understanding through diverse representations of concepts.
Friends or Foe? Secondary Students’ Perceptions of Mathematics in Acehnese Cultural Contexts Putra, Mulia; Novita, Rita; Usman, Usman
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2904

Abstract

Studi ini mengekplorasi bagaimana siswa sekolah menengah dengan persepsi positive maupun negatif terlibat atau menyatu dengan konsep etnomatematis melalui artefak budaya Aceh. Data pada penelitian diperoleh dari kertas jawaban siswa yang kemudian dideskripsikan secara kualitatif. Triangulasi sumber dijadikan sebagai metode untuk mengecek kredibilitas data atau informasi yang diperoleh dalam penelitian. Empat siswa dipilih dengan komposisi dua orang meenganggap matematika sebagai temannya dan dua yang lainnya menganggap matematika sebagai musuhnya. Mereka dipilih karena mampu menuliskan informasi yang lebih. Dari penelitian ini didapatkan hasil bahwa baik siswa yang membenci matematika maupun yang menyukai matematika Ketika budaya menjadi konteks di dalam masalah matematis, mereka mampu untuk menunjukkan ide-ide matematis dalam merespon soal atau pertanyaan yang diberikan, khususunya pada geometri datar seperti segitiga, persegi Panjang dan lain-lain. Namun, tidak ada dari mereka yang menyebutkan tentang koneksi matematika dan artifak budaya dengan geometri bidang ruang seperti balok, prisma maupun kubus. Dari penelitian ini juga menguatkan siswa yang membenci matematika anda menyukainya, keduanya memiliki ide-ide sama yang dipikirkan tentang matematika Bersama dengan budaya, tetapi mereka tidak menyadarinya. This study explores how secondary students with positive/negative perceptions of mathematics engage with ethnomathematical concepts in Acehnese cultural artefacts. In this research the data from students’ answer sheet that was described qualitatively, and the source triangulations method leads to clarification on how valid and credible the data or information delivered in the result. Four students were selected with the composition two students consider mathematics as their friends and the others two consider mathematics as their enemies. Those four students were selected on purpose with enormous information within their answer sheet. students who love mathematics consider mathematics as their friends and mathematics is the enemies for those who hate mathematics. However, when both students who hate mathematics and love it provide cultures as a context for mathematics ideas, they can perform some idea about geometry as especially flat plane such triangles, rectangles etc. none of them mention about the connection mathematics and culture artifacts with three-dimensional plane such as blocks, prims or cubes. it also strengthens the finding that students who hate mathematics and love it, both have some ideas to think about mathematics within the cultures, but they don’t realise that.
Hypothetical Learning Trajectory for Ninth Graders’ Understanding of Curved Three-Dimensional Shapes through Javanese Ethno-Realistic Mathematics Education Nursyahidah, Farida; Albab, Irkham Ulil; Rubowo, Maya Rini
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2906

Abstract

Geometri merupakan aspek penting dalam matematika yang mendukung perkembangan kemampuan kognitif siswa. Meski demikian, pemahaman terhadap konsep-konsep geometri, khususnya yang berkaitan dengan bangun ruang sisi lengkung, sering kali menjadi kendala bagi siswa. Artikel ini bertujuan untuk menyusun dan menyajikan sebuah lintasan pembelajaran hipotetik mengenai bangun ruang sisi lengkung dengan pendekatan Etnomatematika Realistik Jawa. Penelitian dilakukan menggunakan metode design research yang mencakup tiga tahap utama, yaitu perancangan awal, pelaksanaan eksperimen pembelajaran, dan analisis retrospektif. Penelitian ini melibatkan siswa kelas IX di salah satu SMP di kota Semarang. Fokus pembahasan artikel ini berada pada tahap desain awal, yakni pengembangan hipotesis lintasan pembelajaran yang meliputi empat aktivitas utama: (1) mengenali unsur-unsur bangun ruang sisi lengkung melalui pengamatan video berbasis konteks budaya, (2) menyusun pemahaman tentang luas permukaan dan volume tabung, (3) merumuskan luas permukaan dan volume kerucut, dan (4) menemukan rumus luas permukaan serta volume bola. Rangkaian aktivitas dalam lintasan pembelajaran ini dirancang untuk membantu siswa membangun pemahaman yang lebih mendalam terhadap konsep bangun ruang sisi lengkung, sekaligus menumbuhkan apresiasi terhadap budaya lokal dan keragaman dalam berpikir matematis. Lintasan pembelajaran hipotetik ini dirancang untuk diimplementasikan pada kelas eksperimen dan pengajaran berbasis penelitian menggunakan E-RME untuk meningkatkan kemampuan pemecahan masalah matematika siswa yang merupakan novelty dari penelitian ini. Geometry plays a vital role in mathematics to foster students' cognitive growth. Nevertheless, grasping geometry concepts can be particularly difficult, especially when dealing with three-dimensional shapes with curved surfaces. This paper proposes a Hypothetical Learning Trajectory (HLT) for teaching such shapes, grounded in Javanese Ethno-Realistic Mathematics Education (E-RME). The study adopts a design research methodology comprising three key phases: initial design, experimental teaching design, and retrospective analysis. The participants in this research are ninth-grade students from a junior high school in Semarang. The article focuses on the outcomes of the initial design phase, specifically the development of an HLT that includes four learning activities: (1) recognizing components of curved surface solids through contextual video observation, (2) exploring the surface area and volume of cylinders, (3) deriving formulas for the surface area and volume of cones, and (4) discovering the formulas for the surface area and volume of spheres. This sequence of activities is intended to help students build a meaningful understanding of curved 3D objects, while also fostering an appreciation for their cultural background and encouraging diverse approaches to mathematical reasoning. The HLT developed in this study is intended for implementation in trial classrooms and experimental teaching through E-RME, with the goal of enhancing students’ problem-solving skills, which is the novelty of this research.
Media Development of Runner Mathematics Educational Game Based on Website Using Unity on Simple Fraction Material 5th Grade Elementary School Azizah, Hanifah Nur; Abdullah, Kusmajid
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2916

Abstract

Rendahnya minat dan hasil belajar siswa pada materi pecahan sederhana di kelas 5 SD menjadi dasar pengembangan media pembelajaran yang inovatif. Penelitian ini bertujuan untuk mengembangkan game edukasi Runner Mathematics berbasis website menggunakan Unity dengan model ADDIE. Data dikumpulkan melalui observasi, angket validasi ahli, dan angket respon siswa, kemudian dianalisis secara deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa media ini layak digunakan dan mampu meningkatkan motivasi dan keterlibatan siswa. Game ini berpotensi menjadi media pembelajaran matematika yang interaktif dan mudah diakses. The low interest and learning outcomes of students in 5th-grade elementary school regarding simple fractions are the basis for the development of innovative learning media. This research aims to develop a website-based Runner Mathematics educational game using Unity with the ADDIE model. Data were collected through observation, an expert validation questionnaire, and a student response questionnaire, and then analysedanalysed both descriptively and quantitatively. The results show that this media is feasible to use and can increase student motivation and engagement. This game has the potential to be an engaging and accessible medium for learning math.
Tracing the Footsteps of Ethnomathematics in Indonesian High School Education: Literature Metasynthesis and Trend Analysis 2015-2025 Jatnika, Sugih Nugraha; Agoestanto, Arief; Mariani, Scolastika
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2025): July
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i2.2995

Abstract

Matematika sering dianggap sebagai pelajaran yang abstrak dan jauh dari kehidupan nyata. Padahal, konsep matematika banyak ditemukan dalam budaya lokal Indonesia. Penelitian ini bertujuan mengkaji penerapan etnomatematika dalam pembelajaran matematika di SMA melalui Tinjauan Literatur Sistematis (SLR) terhadap 20 artikel yang terbit antara 2015–2025. Artikel tersebut mencakup pengembangan bahan ajar, eksperimen kelas, serta integrasi unsur budaya seperti permainan tradisional, rumah adat, seni, dan tradisi lokal, terutama pada materi geometri, aljabar, dan bilangan. Hasil sintesis menunjukkan bahwa 85% studi melaporkan peningkatan pemahaman konsep, dan 70% menyebut peningkatan motivasi dan keterlibatan siswa. Etnomatematika juga memperkuat identitas budaya dan sikap positif siswa terhadap matematika. Pendekatan ini efektif menjembatani materi akademik dengan kehidupan nyata siswa. Kesimpulannya, etnomatematika layak diintegrasikan dalam kurikulum SMA untuk menciptakan pembelajaran yang kontekstual, bermakna, dan berakar pada budaya lokal. Mathematics is often considered an abstract subject, one that is far removed from real life. Mathematical concepts are widely found in local Indonesian culture. This study aims to examine the application of ethnomathematics in high school mathematics learning through a Systematic Literature Review (SLR) of 20 articles published between 2015 and 2025. The articles cover the development of teaching materials, classroom experiments, and the integration of cultural elements such as traditional games, traditional houses, art, and local traditions, especially in geometry, algebra, and number materials. The synthesis results showed that 85% of studies reported an increase in conceptual understanding, and 70% mentioned an increase in student motivation and engagement. Ethnomathematics also strengthens students’ cultural identity and positive attitudes towards mathematics. This approach effectively bridges academic material with students’ real lives. In conclusion, ethnomathematics is a valuable addition to the high school curriculum, as it fosters contextual, meaningful, and culturally rooted learning.