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All Journal Jurnal Konseling dan Pendidikan Edu Research Jurnal Ilmiah Mahasiswa FKIP Prodi Matematika Jurnal Edu Research Jurnal Dimensi Jurnal Gantang Dinamisia: Jurnal Pengabdian Kepada Masyarakat JMM (Jurnal Masyarakat Mandiri) JURNAL EDUCATION AND DEVELOPMENT Jurnal Cendekia : Jurnal Pendidikan Matematika M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika BERNAS: Jurnal Pengabdian Kepada Masyarakat Mosharafa: Jurnal Pendidikan Matematika Mejuajua International Journal of Progressive Mathematics Education Jurnal Edu Research Jurnal Pendidik Indonesia Journal of Biology, Chemistry, Mathematics and Physics Education Tepak Sirih : Jurnal Pengabdian Kepada Masyarakat Madani International Journal of Applied Learning and Research in Algebra
Lusi Eka Afri
Universitas Pasir Pengaraian
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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PENDAMPINGAN OLIMPIADE MATEMATIKA: STRATEGI PENGUATAN PENALARAN SISWA DAN KOMPENSI GURU PEMBINA SMP NEGERI 3 RAMBAH HILIR Afri, Lusi Eka; Arcat, Arcat; Najmi, Zhafirah; Yuliana, Rika
Mejuajua: Jurnal Pengabdian pada Masyarakat Vol. 5 No. 2 (2025): Desember 2025
Publisher : Yayasan Penelitian dan Inovasi Sumatera (YPIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/mejuajuajabdimas.v5i2.274

Abstract

A systematic mentoring relevant to the demands of mathematics olympiads based on reasoning. The purpose of this activity is to enhance students’ reasoning abilities, develop a cotextualized olympiad learning module, and strengthen the competencies of teacher coaches. The implementation method uses a participatory-educative approach, actively engaging both students and teachers at every stage of the activities. The activities consisted of training, simulated, and competitive motivation sessions based role models. Evaluation was conducted throught pre test and post test, observation, and perception survey. The result show that there were an increase inthe average score of student’s reasoning by 52% and the accuracy rate of answers increases from 47,8% to 82,5%. This improvements were supported by mentoring strategy used, which includes habituation of a gradual approach, pattern identification, and the application of systematic critical thinking logic. Qualitative results futher indicated that 85% of student reported greather confidence and 90% benefited simulation question. The learning module proved effective in assisting teachers to improve their mentoring techniques and facilitating students’ understanding of the material. The growth of intrinsic motivation shows that 70% of student are motivated to participate in similar competitions in the future. These findings confirm that directed mentoring based on logical exercises and reflection is effective not only in improving student’s readiness to face olympiads but also has potential to bulid a culture of critical learning and independent coaching in schools.
Eksplorasi etnomatematika pada motif batik sicuriang ludai sebagai sumber belajar matematika Nurrahmawati; Afri, Lusi Eka; Syafitri, Yuni
International Journal of Progressive Mathematics Education Vol. 5 No. 2 (2025)
Publisher : Universitas Muhammadiyah Prof. DR. HAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/ijopme.v5i2.8109

Abstract

Purpose: This study examines ethnomathematics within the Sicuriang Ludai batik motif to integrate local wisdom into the formal mathematics curriculum, effectively bridging the chasm between abstract theory and cultural reality. Design/methodology/approach: Utilizing an ethnographic design, data were gathered through participant observation and in-depth interviews with Rokan Hulu cultural experts. The data were then systematically analyzed through data condensation and verification techniques to ensure analytical rigor. Findings: The findings confirm the manifestation of plane geometry concepts—specifically rectangles and parallelograms—alongside angular relationships and geometric transformations, including translation, reflection, and rotation. Philosophically, these patterns represent the identity of the Rokan Hulu community through ingrained principles of mathematical precision. Practical implications: This research supports the implementation of culturally responsive pedagogy, providing a framework for educators to develop instructional materials that are both contextual and meaningful for students. Originality/value: As the inaugural scholarly documentation of the Sicuriang Ludai motif within a mathematical framework, this study underscores mathematics as a culture-bound entity and enriches the literature on indigenous-based learning resources in the Southeast Asian context.   Purpose: Penelitian ini menganalisis etnomatematika pada motif batik Sicuriang Ludai untuk mengintegrasikan kearifan lokal ke dalam kurikulum matematika formal, sekaligus menjembatani celah antara teori abstrak dan realitas budaya. Design/methodology/approach: Melalui desain etnografi, data dikumpulkan melalui observasi partisipatif dan wawancara mendalam dengan budayawan Rokan Hulu, kemudian dianalisis secara sistematis menggunakan teknik kondensasi data dan verifikasi kesimpulan. Findings: Temuan mengonfirmasi manifestasi konsep geometri bidang (persegi panjang dan jajargenjang), hubungan sudut, serta transformasi geometri (translasi, refleksi, dan rotasi) pada motif batik. Secara filosofis, pola ini merepresentasikan identitas masyarakat melalui prinsip ketelitian matematis yang mendalam. Practical implications: Hasil penelitian ini mendukung implementasi pedagogi responsif budaya (culturally responsive pedagogy), memberikan kerangka bagi pendidik untuk menciptakan materi pembelajaran yang lebih kontekstual dan bermakna bagi siswa. Originality/value: Sebagai dokumentasi ilmiah pertama terhadap motif Sicuriang Ludai dalam konteks matematika, penelitian ini memperkuat posisi matematika sebagai entitas yang terikat budaya (culture-bound) dan memperkaya literatur sumber belajar berbasis kearifan lokal.
Pengembangan instrumen penilaian literasi matematika mahasiswa calon guru matematika Afri, Lusi Eka; Nurrahmawati, Nurrahmawati
Jurnal Pendidik Indonesia Vol. 6 No. 4 (2025): Jurnal Pendidik Indonesia
Publisher : Karoteh Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61291//jpi.v6i4.264

Abstract

Twenty-first-century learning requires teachers, particularly prospective mathematics teachers, to possess strong mathematical literacy in order to guide students in understanding, applying, and interpreting mathematics in various real-life contexts. This study aimed to develop a valid and reliable mathematical literacy assessment instrument for prospective mathematics teachers by adopting the 4-D development model. The instrument focused on counting techniques and probability concepts, aligned with the AKM/IEA mathematical literacy cognitive levels of knowing, applying, and reasoning. The trial participants consisted of 64 undergraduate students enrolled in the mathematics education program at the second, third, and fourth-year levels. Content validity analysis using Aiken’s index indicated that all items were valid, with coefficients ranging from 0.80 to 0.95. Furthermore, construct validity testing through Confirmatory Factor Analysis (CFA) demonstrated adequate convergent validity, as indicated by an Average Variance Extracted (AVE) value of 0.581 and a composite reliability (ρc) value of 0.815. These findings indicate that the developed mathematical literacy assessment instrument meets validity and reliability criteria and is therefore suitable for use as an item bank in basic statistics courses or related subjects.
Menjembatani budaya dan logika: eksplorasi geometri tanjak unak serantau melalui geogebra sebagai solusi numerasi di era kurikulum merdeka Nasrullah, Amri; Almaida; Dependri; Rahman, Muhamad Amar; Hasanah, Uswatun; Afri, Lusi Eka
International Journal of Progressive Mathematics Education Vol. 4 No. 2 (2024)
Publisher : Universitas Muhammadiyah Prof. DR. HAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/ijopme.v4i2.11929

Abstract

Purpose: This research addresses the persistent challenge of low student numeracy by developing ethnomathematics-based interactive media focused on the cultural artifact of Tanjak Unak Serantau for geometry instruction.Design/methodology/approach: Following the 4-D development framework—comprising define, design, develop, and disseminate stages—this study engaged junior high school students and expert validators. The research utilized validation instruments, practicality surveys, and numeracy assessments to evaluate the GeoGebra-assisted prototype.Findings: The developed media achieved a high category of validity from experts in mathematics education and informatics. Empirical results demonstrated that the tool is highly practical and effective, as evidenced by the significant attainment of classroom mastery standards across sequential cycles.Practical implications: This innovation provides educators with a dynamic pedagogical tool that bridges abstract geometric theorems with tangible cultural symbols, fostering a more engaging and meaningful learning environment.Originality/value: The study contributes to the literature by digitizing local Malay wisdom into a dynamic geometry environment, offering a unique synthesis of traditional heritage and modern educational technology.   Purpose: Penelitian ini menjawab tantangan rendahnya numerasi siswa melalui pengembangan media interaktif berbasis etnomatematika pada artefak budaya Tanjak Unak Serantau untuk pembelajaran geometri.Design/methodology/approach: Mengacu pada kerangka pengembangan 4-D—meliputi tahap pendefinisian, perancangan, pengembangan, dan penyebaran—studi ini melibatkan siswa sekolah menengah pertama serta para pakar validator. Instrumen penelitian mencakup lembar validasi, survei kepraktisan, dan asesmen numerasi untuk mengevaluasi purwarupa berbantuan GeoGebra.Findings: Media yang dikembangkan mencapai kategori validitas yang sangat tinggi dari para ahli pendidikan matematika dan informatika. Hasil empiris menunjukkan bahwa media ini sangat praktis dan efektif, terbukti dari pencapaian standar ketuntasan klasikal yang signifikan pada siklus yang berurutan.Practical implications: Inovasi ini menyediakan sarana pedagogis dinamis bagi pendidik untuk menjembatani teorema geometri abstrak dengan simbol budaya nyata, sehingga menciptakan lingkungan belajar yang lebih menarik dan bermakna.Originality/value: Studi ini berkontribusi pada literatur melalui digitalisasi kearifan lokal Melayu ke dalam lingkungan geometri dinamis, menawarkan sintesis unik antara warisan tradisional dan teknologi pendidikan modern.
Linking Representation and Reasoning: An Analysis of Mathematical Communication in Algebraic Word-Problem Solving Najmy, Zhafirah; Nurrahmawati, Nurrahmawati; Arcat, Arcat; Afri, Lusi Eka
International Journal of Applied Learning and Research in Algebra Vol. 3 No. 1 (2026)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/algebra.v3i1.1945

Abstract

Purpose – Mathematical communication is essential in 21st-century mathematics learning because it enables students to represent, explain, and interpret ideas when solving contextual problems. This study aimed to describe seventh-grade students’ mathematical communication in solving algebraic word problems. Methodology – A qualitative descriptive design was used. Seventh-grade students at SMP Negeri 3 Rambah Hilir were purposively selected to represent high-, middle-, and low-achieving groups based on classroom performance and test results. Data were collected using an algebraic word-problem written test and semi-structured interviews. Analysis followed data reduction, data display, and conclusion drawing. Mathematical communication was examined using three indicators: (1) translating contexts/diagrams into mathematical language or models; (2) explaining mathematical ideas and relationships in writing; and (3) reading and interpreting written mathematical representations. Findings – Students’ mathematical communication was low. High-achieving students met all indicators, producing accurate representations and coherent written reasoning. Middle-achieving students generally met indicators (1) and (3), but their written explanations (indicator 2) were incomplete or unclear. Low-achieving students struggled across indicators, particularly in forming algebraic models and interpreting representations, leading to incorrect or incomplete solutions. The results highlight the need for explicit scaffolding of representation, written explanation, and interpretation in algebraic word-problem instruction. Novelty – This study offers an indicator-based profile of mathematical communication in algebraic word-problem solving across achievement levels using combined test and interview evidence. Significance – The findings support teachers and curriculum developers in designing learning activities and assessments that strengthen communication, representation, and reasoning in junior secondary algebra.
Co-Authors Alfarizi, Muhamad Alfiana - Almaida Amelia, Mesy Anita Sari Annajmi Annajmi Annajmi Annajmi Annajmi, Annajmi Arcat Arcat Arcat -, Arcat Arcat Arcat Arcat Arcat Arcat Arcat Arcat, Arcat Asnawiyah -, Asnawiyah Dependri Een - Elda Efriani, Elda Ermida Hardianto Hera Deswita Ikar Nila, Ikar Istiqomah - janiarli, masdi Jayawarsa, A.A. Ketut Juhri Yani, Juhri Juliati - Marfi Ario Mela, Fefti Yulian Muslimatun Nikmah Muzayanah, Fitri Isnani Najmi, Zhafirah Najmy, Zhafirah Nasrullah, Amri Nefianti, Nadia Nurin Rahmawati Nurrahmawati Nurrahmawati Nurrahmawati Nurrahmawati Nurrwahmawati, Nurrahmawati Pariang Sonang Siregar Pebriani -, Pebriani PRABOWO Purba, Rika Wulandari Br Rahman, Muhamad Amar Ratri Isharyadi, Ratri Rena Lestari, Rena Ria Karno rika septianingsih Rika Yuliana, Rika Rindi Genesa Hatika Riska Novia Sari Riska Novia Sari SALMAH -, SALMAH Satria Riki Mustafa, Satria Riki Sa’dah, Nella Rodiya Shay Putri, Selly Sri Mulyaningsih Sri Wahyuningsih Supriyanto - Suriani -, Suriani Suryani , Pitri Syafitri, Yuni Tonaas K.W.Y. Marentek, Tonaas K.W.Y. Uswatun Hasanah Veta Fitriani Welven Aida Wirdatul Jannah Yuliana Safitri Yulianti -