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All Journal AKSIOMA: Jurnal Program Studi Pendidikan Matematika JINOP (Jurnal Inovasi Pembelajaran) Jurnal Edukasi Matematika dan Sains Numeracy : Jurnal Ilmiah Pendidikan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) Abdi Masyarakat International Journal of Trends in Mathematics Education Research (IJTMER) Riemann : Research of Mathematics and Mathematics Education Jurnal Pendidikan MIPA Proceeding International Conference on Digital Education and Social Science
Buaddin Hasan
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Humanities Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Mathematics Social Sciences Other

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Enhancing Students' Problem-Solving Skills through Ethnomathematics-Based Geometry Learning with an Android Mobile Application Hodiyanto; Erna Setyaningsih; Buaddin Hasan; Markus Palobo; Bidya Nath Koirala
Riemann: Research of Mathematics and Mathematics Education Vol. 8 No. 1 (2026): EDISI APRIL
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v8i1.182

Abstract

Despite the growing integration of technology in mathematics education, research on mobile learning platforms embedding local cultural contexts—particularly ethnomathematics—remains limited at the junior secondary level in Indonesia. Mathematical problem-solving ability remains a persistent challenge among students, necessitating Android-based learning media as a more engaging instructional solution. This investigation examined the extent to which an Android-based interactive mobile learning (m-learning) platform, integrated with ethnomathematics derived from Pontianak's local culture. A quasi-experimental posttest-only control-group design was adopted for this purpose. From nine classes at SMP Negeri 2 Pontianak, 60 participants were selected via cluster random sampling—30 in the experimental group receiving m-learning instruction and 30 in the comparison group receiving instruction without m-learning. Assessment of mathematical problem-solving capacity was conducted through a descriptive test comprising three items structured around Polya's four-stage indicators, with empirically established validity coefficients ranging from 0.94 to 0.96 and a reliability coefficient of 0.78. Statistical examination involved a one-tailed independent samples t-test for group comparison, supplemented by Cohen's d for effect size quantification. Findings revealed that learners exposed to m-learning instruction demonstrated substantially superior mathematical problem-solving performance compared to their counterparts in the conventional group (mean = 84.67 vs 72.63; p < 0.05), with a large effect magnitude (Cohen's d = 1.3). These outcomes affirm that the ethnomathematics-embedded Android-based m-learning platform constitutes an efficacious and educationally meaningful intervention for cultivating students' mathematical problem-solving proficiency. Nevertheless, further research on a broader scale is warranted to enhance the generalizability of these findings, along with the incorporation of a pretest to more rigorously assess gains and establish stronger causal evidence of the intervention's effectiveness.
EXPLORING THE IMPACT OF COGNITIVE ASPECT ON CREATIVE REASONING IN SOLVING MATHEMATICAL PROBLEM Rica Wijayanti; Buaddin Hasan; Hodiyanto Hodiyanto
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol. 15 No. 2 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v15i2.14903

Abstract

The low development of creative reasoning among prospective mathematics teachers is caused by the dominance of imitative reasoning and the limitations of working memory capacity in the problem-solving process. Therefore, this study is essential to investigate the role of working memory capacity in enhancing the effectiveness of creative reasoning to support more meaningful mathematics learning. This study aims to examine the effect of prospective mathematics teachers’ working memory capacity on their creative reasoning and its processes. This study employed a mixed-method sequential explanatory design. A total of 73 prospective mathematics teachers participated in the study, selected through cluster random sampling. The Operating Span Task (OSPAN Test) was used to assess working memory capacity. A previously developed problem-solving test was used to measure creative reasoning, based on the indicators of novelty, plausibility, and mathematical foundation. Quantitative data were analyzed using linear regression techniques, while qualitative data were analyzed through three stages: data condensation, data display, and conclusion drawing. The results indicate that working memory capacity significantly influences the creative reasoning ability of prospective mathematics teachers. Specifically, it was found that 14% of the creative reasoning demonstrated in problem-solving is attributable to working memory capacity. Prospective mathematics teachers with high working memory capacity demonstrate flexibility and fluency in generating new ideas to solve problems, are able to use and connect mathematical concepts appropriately, and provide logical arguments to support the validity of their ideas. In contrast, those with low working memory capacity do not exhibit these characteristics. Rendahnya pengembangan penalaran kreatif pada calon guru matematika diakibatkan adanya dominasi penggunaan penalaran imitatif serta keterbatasan kapasitas memori kerja dalam proses pemecahan masalah, sehingga penelitian ini menjadi urgen untuk mengkaji peran kapasitas memori kerja dalam meningkatkan efektivitas penalaran kreatif guna mendukung pembelajaran matematika yang lebih bermakna. Penelitian ini bertujuan untuk mengetahui pengaruh kapasitas memori kerja calon guru matematika terhadap penalaran kreatif dan prosesnya. Penelitian ini menggunakan desain mixed-method sequential explanatory. Sebanyak 73 calon guru matematika berpartisipasi dalam penelitian ini, yang diperoleh menggunakan cluster random sampling. Operating Span Task (OSPAN Test) diterapkan untuk menilai kapasitas memori kerja. Pada penelitian ini digunakan tes pemecahan masalah yang telah dikembangkan sebelumnya untuk menilai penalaran kreatif, dengan mempertimbangkan indikator penalaran kreatif: kebaruan (novelty), kelayakan (plausibility), dan dasar matematis (mathematical foundation). Analisis data kuantitatif dilakukan menggunakan teknik regresi linier, sedangkan data kualitatif dianalisis melalui tiga tahap: data condensation, data display, dan conclusion drawing. Hasil penelitian menunjukkan bahwa kapasitas memori kerja secara signifikan memengaruhi kemampuan penalaran kreatif calon guru matematika. Secara khusus, ditemukan bahwa 14% penalaran kreatif yang ditunjukkan oleh calon guru matematika dalam pemecahan masalah disebabkan oleh kapasitas memori kerja. Calon guru matematika dengan kapasitas memori kerja tinggi bersifat fleksibel dan lancar dalam menemukan ide-ide baru untuk memecahkan masalah, mampu menggunakan dan menghubungkan konsep matematika dengan benar, serta memberikan argumen logis untuk mendukung kebenaran ide yang dibuat. Sementara itu, calon guru matematika dengan kapasitas memori kerja rendah tidak menunjukkan hal tersebut.
Co-Authors Bidya Nath Koirala Dewi, Hefi Rusnita Didik Hermanto Didik Hermanto Enny Listiawati Erna Setyaningsih Hendarto Cahyono Hodiyanto Hodiyanto Hodiyanto Marhan Taufik Markus Palobo Mety Liesdiani Nur Aini S Nur Aliya R.A. Rica Wijayanti RA. Rica Wijayanti Reni Dwi Susanti Rica Wijayanti Siska Pratiwi ZAIFUL ULUM Zainudin Zainudin