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All Journal Jurnal Gantang JTAM (Jurnal Teori dan Aplikasi Matematika) Jurnal VARIDIKA
Nurrosyadah, Naqiyyah
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Education Languange, Linguistic, Communication & Media Mathematics Other

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Students’ mathematical modelling ability in solving PISA tasks on uncertainty and data content Nurrosyadah, Naqiyyah; Utami, Marta Risa Putri; Darmawijoyo; Hartono, Yusuf
Jurnal Gantang Vol 10 No 1 (2025): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jg.v10i1.7193

Abstract

Mathematical modeling is key in helping students connect abstract mathematics with real-life situations by transforming practical problems into mathematical forms, solving them analytically, and interpreting solutions in context. This study investigates junior high school students' mathematical modeling abilities in solving PISA tasks on Uncertainty and Data, analyzed through the OECD (2018) framework of formulating, employing, interpreting, and evaluating. Employing a descriptive qualitative approach, we collected data through written tests and follow-up interviews with seventh-grade students. Findings reveal that students show moderate ability in employing mathematical procedures (50.2%) but struggle with formulating problems (45.3%). Most critically, they demonstrate significant difficulties in interpreting (33.7%) and evaluating (28.5%) solutions within real-world contexts, impairing their ability to apply mathematics practically. Qualitative analysis of written tests and interviews shows that students often develop mental strategies but fail to articulate them in writing. These findings underscore the critical need to strengthen higher-order modeling skills in instructional practices, particularly interpretation, evaluation, and mathematical communication. The study reveals essential gaps between procedural competence and practical application, suggesting that curriculum reforms should emphasize problem-solving approaches to develop mathematical modeling abilities that meet PISA’s standards.
Arithmetic Adventure: A Role-Playing Game to Support Students’ Mathematical Thinking on Arithmetic Sequences Nurrosyadah, Naqiyyah; Susanti, Ely; Somakim, Somakim
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 10, No 1 (2026): January
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v10i1.35260

Abstract

This study aims to develop an educational Role-Playing Game (RPG) entitled Arithmetic Adventure: The Mystery of Polaria Village to support students’ mathematical thinking on arithmetic sequences. The research employed a Development Research approach using the ADDIE model, which consists of Analyze, Design, Development, Implementation, and Evaluation stages. The subjects were 10th-grade students of SMA Negeri 10 Palembang who had implemented the Merdeka Curriculum. Data were collected through expert validation, student practicality questionnaires, and mathematical thinking ability tests. The results indicated that the RPG obtained an overall average validity score of 4.45, categorized as very valid in terms of content, construct, language, and ICT aspects. Practicality testing showed an average percentage of 86.25%, placing the RPG in the very practical category. Furthermore, the potential effect test revealed that 48.6% of students achieved good, 28.6% very good, and 22.9% fair in mathematical thinking ability, showing improvements in specializing, generalizing, conjecturing, and convincing. These findings demonstrate that Arithmetic Adventure is a valid, practical, and potentially effective educational game for supporting students’ mathematical thinking in arithmetic sequences. The study provides theoretical contributions by reinforcing the role of RPGs in fostering mathematical thinking and practical contributions by offering an innovative alternative medium for mathematics learning. 
Students’ Perceptions of Role-Playing Games in Mathematics Learning: A Descriptive Study Nurrosyadah, Naqiyyah; Susanti, Ely; Somakim
Jurnal VARIDIKA Volume 38 No 2, June 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/varidika.v38i2.13600

Abstract

This study aims to describe students’ perceptions of the use of a role-playing game (RPG), Arithmetic Adventure: The Mystery of Polaria Village, in mathematics learning on arithmetic sequences and series. A quantitative descriptive research design was employed, involving 34 tenth-grade students at SMA Negeri 10 Palembang selected through purposive sampling based on their participation in RPG-based learning activities. Data were collected using a closed-ended Likert-scale questionnaire covering four aspects: motivation and engagement, perceived learning effectiveness, social interaction and collaboration, and challenges encountered during learning. Content validity was established through expert judgment, while instrument reliability was confirmed using Cronbach’s Alpha coefficients ranging from 0.77 to 0.91, indicating acceptable to excellent internal consistency. Descriptive analysis showed that students perceived the RPG positively in terms of motivation, engagement, and learning effectiveness, while challenges related to technical constraints and game complexity were reported at a moderate level. The integration of narrative-based gameplay with mathematical thinking stages—specializing, generalizing, conjecturing, and convincing—was perceived as supporting students’ reasoning and problem-solving processes. These findings suggest that RPG-based learning can serve as a meaningful and engaging instructional medium in mathematics, although its implementation requires careful design considerations and adequate technical support.
Co-Authors Darmawijoyo, Darmawijoyo Ely Susanti Somakim, Somakim Utami, Marta Risa Putri Yusuf Hartono