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Krida Singgih Kuncoro
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Union: Jurnal Ilmiah Pendidikan Matematika
Published by Universitas Sarjanawiyata Tamansiswa
ISSN : 2339224X     EISSN : 25793209     DOI : https://doi.org/10.30738/union
Core Subject : Education,
Education Mathematics
Union: Jurnal Ilmiah Pendidikan Matematika is a peer-reviewed open access journal published three times in a year (March, July, and November). Union: Jurnal Ilmiah Pendidikan Matematika provides a forum for lecturers, academicians, researchers, practitioners, and students to deliver and share knowledge in the form of empirical and theoretical research articles. The scope of Union is Mathematics Education which includes, but is not limited to the following topics: Mathematics Ability, Mathematics Learning Model, Mathematics Learning Media, Curriculum Development, Assessment and Evaluation, Didactical Design Research (DDR), Realistic Mathematics Education (RME), Ethnomathematics, Research and Development (RnD), PISA Task.
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol 13 No 4 (2025)" : 12 Documents clear
Revealing the hidden gaps: A comprehensive needs analysis for numeracy and financial literacy learning in ratio topics supported by digital and intelligent technologies Hamdallah, Farhan; Balkist, Pujia Siti; Robbiana, Djaka Firmansyah; Sarassanti, Yumi; Sudibyo, Novy Anggraini; Kuncoro, Krida Singgih
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 4 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i4.21866

Abstract

Numeracy and financial literacy are widely recognized as essential competencies for students in the twenty-first century, particularly in navigating real-life decision-making contexts. However, empirical evidence consistently indicates that middle school students struggle to apply ratio concepts meaningfully in financial situations. This study aims to conduct an in-depth needs analysis as a foundational step toward the future development of an innovative learning medium that integrates numeracy, financial literacy, digital tools, and intelligent technologies. Using a descriptive qualitative-dominant approach, data were collected through curriculum analysis, classroom observations, teacher interviews, student questionnaires, diagnostic tests, and document analysis. The findings reveal significant gaps between curricular expectations and classroom practices, including the dominance of procedural instruction, limited financial context integration, insufficient use of digital learning tools, and the absence of adaptive or reflective feedback mechanisms. Furthermore, the results indicate that students possess fragmented understanding of ratios and demonstrate low confidence in making financial decisions based on numerical reasoning. These findings highlight the urgent need for a learning medium that supports contextualized reasoning, computational exploration, and reflective guidance. The research contribution of this study lies in providing a rigorous empirical foundation that informs the design requirements of future technology-enhanced learning innovations aimed at strengthening the integration of numeracy and financial literacy in mathematics education.
Development of Genially-based interactive learning media to enhance junior high school students’ mathematical literacy and mathematical disposition Hartanto, Rio Tri; Nasrullah, Anton; Nisa, Ratu Khoirotun; Hina, Shahzadi
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 4 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i4.22032

Abstract

Mathematics learning at the junior high school level continues to face various challenges, particularly the low levels of students’ mathematical literacy and mathematical disposition, which are largely caused by the limited availability of interactive learning media. Students often experience difficulties in understanding problem information, organizing concepts, and constructing solutions systematically, especially in the topic of integers. This study aimed to develop Genially-based interactive learning media for the topic of integers for seventh-grade junior high school students and to evaluate its validity and practicality. The study employed a Research and Development (R&D) approach using the ADDIE model, which consists of the analysis, design, development, implementation, and evaluation stages. The developed media were validated by a media expert, a subject-matter expert, and a language expert, and their practicality was tested through small-scale and large-scale trials involving junior high school students. The validation results indicated that the learning media achieved average scores of 86% from the media expert, 93% from the subject-matter expert, and 98% from the language expert, all of which fell into the “very valid” category. Meanwhile, the practicality test results showed scores of 86% in the small-scale trial and 84% in the large-scale trial, both of which were categorized as “very practical.” Based on these findings, the Genially-based interactive learning media were considered feasible for use and demonstrated potential to support the development of junior high school students’ mathematical literacy and mathematical disposition. This study contributes to mathematics education research by providing empirically validated evidence on the feasibility of Genially-based interactive learning media as an effective alternative to support students’ mathematical literacy and mathematical disposition, particularly in the topic of integers.

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