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Ratu Ilma Indra Putri
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Department of Master Program on Mathematics Education Sriwijaya University, Palembang, Indonesia, Kampus FKIP Bukit Besar Jl. Srijaya Negara, Bukit Besar, Palembang-30139, Indonesia
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Mathematics Education Journal
Published by Universitas Sriwijaya
ISSN : 19780044     EISSN : 25491040     DOI : https://doi.org/10.22342/jpm
Core Subject : Education,
Education Mathematics Other
Jurnal Pendidikan Matematika or Mathematics Education Journal is an electronic peer-reviewed international journal, provides a forum for publishing original research articles, reviewing articles from contributors, and publishing novel technology news related to mathematics education. This journal is provided for writers, teachers, students, professors, and researchers who will publish research reports or literature review articles (only for invited contributors) about mathematics education and its instruction for authors and readers worldwide. The journal invites original research articles and is not simultaneously submitted to another journal or conference. The whole spectrum of research in mathematics education is welcome, which includes, but is not limited to, the following topics, such as Realistic Mathematics Education, Design Research in Mathematics Education, Mathematics Ability, PISA Tasks, and Ethnomathematics.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 10 Documents
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Search results for , issue "Vol. 19 No. 3 (2025): Mathematics Education Journal" : 10 Documents clear
Students’ Communication Skill and Algebraic Thinking through Commognitive Framework in Algebra Learning Pratiwi, Weni Dwi; Zulkardi; Putri, Ratu Ilma Indra; Hiltrimartin, Cecil
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp413-436

Abstract

Mathematical communication is a skill to articulate mathematical ideas through written and verbal expressions. Despite its importance, students often exhibit difficulties in initiating and organizing mathematical ideas, particularly in written form. Prior research highlights the critical role of communication in fostering early algebraic thinking. This study aims to: (1) examine students’ mathematical communication skills and explore how it reflects early algebraic thinking, using the commognitive framework, which encompasses word use, visual mediators, narratives, and routines, and (2) describe statistically the relationship between algebraic thinking and oral communication skills. A descriptive research design with mixed-methods approach was employed, involving 29 eighth-grade students as participants. Data was collected through written tests, and the results were analyzed descriptively. The findings indicate that four students demonstrated excellent communication skills, nine students were categorized as good, 11 students as fair, three students as poor, and two students as very poor. Further analysis showed that students with stronger communication skills more effectively conveyed algebraic ideas. The results also underscore the commognitive framework practical application in enhancing students’ conceptual understanding. This study contributes to a deeper understanding of how students communicate, reason algebraically, and demonstrates the potential of the commognitive framework to support instructional design and skill development in mathematics education.
Designing Learning Trajectory on Data Distribution Measurement through PMRI Nursyahidah, Farida; Albab, Irkham Ulil; Rubowo, Maya Rini
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp527-546

Abstract

The concept of data distribution measures plays a pivotal role in statistical education, fostering students’ data literacy, critical thinking, and evidence-based decision-making. Despite its importance, many students continue to struggle with interpreting statistical data, demonstrating low levels of statistical reasoning and limited ability to apply these concepts to real-world contexts. Addressing this gap, this study introduces a culturally grounded and context-based instructional design that integrates the traditional Javanese calendar system, Pranata Mangsa, into the learning of data distribution measures. The objective of this research is to develop a learning trajectory that supports students’ conceptual understanding of data distribution through meaningful and realistic mathematical experiences. This study involved 32 eighth-grade students from a junior high school in Central Java and employed a design research methodology encompassing three phases: preparation for the experiment, experimental design, and retrospective analysis. The instructional activities were implemented using the Video-assisted Pendidikan Matematika Realistik Indonesia (PMRI) approach. The resulting learning trajectory comprises three interconnected activities, namely analyzing Pranata Mangsa video content to gather and present data, deriving formulas for data distribution measures, and solving contextual problems linked to the cultural theme. The findings indicate that the integration of culturally relevant contexts and visual media in PMRI effectively enhances students’ comprehension of statistical concepts. This research contributes to the field by offering a novel approach that bridges ethnomathematical elements with formal statistical instruction and serves as a reference for future studies seeking to incorporate local wisdom into mathematics education.
Development of Student Worksheets Integrated with Microlearning Comics for Learning Probability Komariyatiningsih, Novi; Hartono, Yusuf; Putri, Ratu Ilma Indra; Hiltrimartin, Cecil
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp547-566

Abstract

Numerous studies have shown that students face difficulties in learning probability. This study aimed to enhance students’ understanding of the concept of probability while developing their reasoning skills by integrating comics into student worksheets. It focused on designing probability material for grade 10 using the student worksheets and microlearning (comics) that were both effective and efficient. The material was developed using Pendidikan Matematika Realistik Indonesia (PMRI) approach, incorporating a microlearning method within the context of culinary tourism, to enhance students’ understanding of probability and reasoning skills. This study employed a design research methodology in two stages, namely preliminary study and formative evaluation. The subjects of this study were 34 students of grade tenth at Senior High School in Prabumulih. Data collected through observations, tests, and interviews were analyzed descriptively. The study resulted the student worksheets on probability, which were incorporated with microlearning comics whose effectiveness and efficiency were aligned with the characteristics of the PMRI approach. Based on the findings, it can be concluded that the PMRI-based student worksheets that were incorporated with microlearning comics were efficient and effective in helping students develop their reasoning skills. The integration of comics and the PMRI approach reflects a commitment to innovation and the continuous development of effective learning designs that promote inclusive, equitable, and meaningful learning experiences.
Ratios in Agriculture: A Rice Fertilization Context for Ratio Learning Trajectory Sari, Filian Yunita; Zulkardi; Putri, Ratu Ilma Indra; Susanti, Ely
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp509-526

Abstract

This study aims to develop a learning trajectory for ratio material using rice fertilization context. This study employed validation studies within a design research framework involving seventh-grade students at a junior high school in Belitang. Data was collected through student activity sheets, observations, and interviews. Design research consists of three stages: experimental preparation, experimental design, and retrospective analysis. The findings indicate that the learning trajectory for ratio material in the rice fertilization context includes identifying patterns and relationships between two quantities, determining the simplest unit ratios, representing ratios using ratios table, and solving real-world ratio-related problems. These results confirm that the designed learning trajectory serves as a practical reference for teachers in designing ratio learning that is meaningful, applicable, and relevant to the life experiences of students in agricultural areas, while supporting sustainable agriculture.
Reducing Cognitive Load using Social Persuasion Prompts in Mathematics Multimedia Learning Murtianto, Yanuar Hery; Retnowati, Endah; Hanham, Jose
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp465-488

Abstract

Although self-efficacy is widely acknowledged as a key to academic success in mathematics, limited research has examined how social persuasion strategies can be systematically integrated into multimedia learning to enhance self-efficacy and manage cognitive load. This study addresses the gap by examining the effects of integrated social persuasion prompts within mathematics instruction, focusing on cognitive load, self-efficacy, and problem-solving achievement. The first experiment compared worked example-based instruction with and without social persuasion, involving 66 undergraduate students enrolled in a multivariable calculus course for the first time. Instructional materials on parametric equations were delivered in a printed booklet and designed in alignment with Cognitive Load Theory. Social persuasion prompts were written on top of each worked example and problem-solving. The findings revealed that there was no significant different impact of written social persuasion, however the social persuasion significantly reduce cognitive load but increase self-efficacy. The second experiment recruited another 56 undergraduate students enrolled in the same multivariable calculus course studied the same worked examples in the format of multimedia. The results demonstrated that there was a strong impact of audio social persuasion on worked examples with regards to achievement, cognitive load, and self-efficacy level. This study provides profound evidence for integrating social persuasion in worked examples as it could enhance achievement, lower cognitive load, and improve self-efficacy. Further research on audio-based persuasion in multimedia format is discussed.
Mathematics Pre-Service Teachers’ Understanding of Inferential Statistics: A Case Study in Singapore Peng, Qiaozi; Toh, Tin Lam; Zhu, Ying
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp437-464

Abstract

In this paper, we report our study on identifying mathematics pre-service teachers’ understanding (and misconceptions) of concepts in inferential statistics through case study methodology of an entire cohort of nine beginning undergraduate students in a teacher education course. Multiple-choice questions and open-ended questions were used to elicit their responses on sampling distribution, Central Limit Theorem, and concepts related to hypothesis testing. The students’ responses show their understanding of sampling distribution and Central Limit Theorem, but lack of understanding of concepts related to hypothesis testing. Their knowledge of hypothesis testing was characterized by their procedural approach to perform hypothesis testing. Some suggestions on teaching of statistics in the school mathematics curriculum are also provided.
Mathematical Insights into Aboge Calendar: Ethnomathematics Study of Javanese Cultural Heritage in Cikakak Village Kusuma, Anggun Badu; Hanum, Farida; Abadi, Agus Maman
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp567-584

Abstract

Traditional calendars often embody complex knowledge systems that remain underexplored in formal academic discourse, especially in the context of indigenous mathematics. This study investigates the mathematical structures embedded in the Javanese Aboge calendar, a traditional timekeeping system preserved by the Aboge community in Cikakak Village, Banyumas Regency, Indonesia. While the official Javanese calendar has transitioned to the Asapon kurup, the Aboge community continues to follow the older Aboge kurup, rooted in local belief and tradition. Using a qualitative descriptive approach and ethnographic methods—comprising field observations, interviews, and collaborative computations—this study examines the underlying mathematical logic of the calendar. The findings reveal that the Aboge calendar applies modular arithmetic, particularly congruences modulo 7 (days) and modulo 5 (pasaran), to determine the first day of each month. These values follow recursive patterns modeled using mathematical formulas. Additionally, the Chinese Remainder Theorem is employed to calculate intervals between specific day-pasaran pairs, validating traditional practices through formal mathematical reasoning. The results demonstrate that the Aboge calendar encapsulates sophisticated mathematical concepts traditionally transmitted through memorization. This study highlights the value of cultural diversity and affirms the role of indigenous knowledge in sustainable development, reinforcing the importance of integrating local traditions into educational and heritage preservation efforts.
Ethnomathematics: Arithmetic and Discrete Mathematics Concepts in Batik Sidomukti Solo Kholid, Muhammad Noor; Husodo, Herlang Duta
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp489-508

Abstract

Ethnomathematics is the study of the relationship between mathematics and culture and its application in everyday life. Batik, as one of Indonesia’s most iconic cultural heritages, contains patterns and structures rich in mathematical ideas, making it a relevant and engaging case study for mathematics education. Batik has the potential to contextualize abstract mathematical concepts through visual and cultural elements. This study specifically focuses on Batik Sidomukti, a classical batik from Surakarta, which is characterized by its distinctive curved patterns known as Isen Ukel. Isen Ukel refers to ornamental curved or spiral lines used as filler patterns, which traditionally symbolize life, continuity, and aesthetic harmony in Javanese batik art. To explore the mathematics concepts embedded in Batik Sidomukti, this study employed a qualitative approach using ethnography and Ethnomathematics Guiding Questions. Ethnography is suitable for this context as it allows for an in-depth understanding of the cultural and artistic context of batik making, including the symbolic meanings and design structures. Data were collected through field observation, motif documentation, and literature review. This approach enabled the researcher to identify and analyze arithmetic and discrete mathematics elements present in the batik designs. For instance, modular and tiling arithmetic are reflected in the repetitive and structured arrangement of motifs, while discrete mathematics is represented through graph theory and combinatorics. The application of combinatorics, in particular, contributes to the aesthetic appeal and design variation of Batik Sidomukti. These findings highlight the significance of ethnomathematics in bridging cultural heritage and mathematics education. Batik motifs, especially Batik Sidomukti, are not only traditional artworks passed down through generations, but also a rich source of inspiration for developing culturally relevant mathematics instruction.
Developing a PMRI Learning Environment for Pre-Service Teachers to Teach Geometry in Elementary Education Mulbasari, Anggria Septiani; Putri, Ratu Ilma Indra; Zulkardi; Nyimas Aisyah
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp585-608

Abstract

There is a need for teachers to possess strong critical thinking skill and pedagogical skills. Unfortunately, many pre-service elementary teachers still struggle to develop these skills adequately, which can hinder the effectiveness of teaching and learning in the classroom. Therefore, this study aims to develop a valid, practical, and effective Pendidikan Matematika Realistik Indonesia (PMRI) learning environment to enhance the critical thinking and pedagogical abilities of pre-service elementary teachers. To achieve this aim, the study developed the Campus-Online-School (COS) model using a developmental research approach consisting of three phases: preliminary study, prototype development, and evaluation. Data were collected through observation, interviews, questionnaires, documentation, and tests, and analyzed using both qualitative and quantitative methods. The findings show that the developed learning environment is valid, practical, and effective in improving students’ critical thinking and pedagogical skills. Critical thinking was assessed through critical thinking test, while pedagogical ability was evaluated using Guskey’s framework. These findings offer important implications for teacher education, emphasizing the need to integrate comprehensive and contextual learning experiences to prepare future teachers who are reflective, adaptive, and equipped to face the challenges of modern classroom practice.
Integrating Sedekah Context in Mathematics Learning to Enhance Students' Mathematical Communication Skills and Awareness of SDG 1: No-Poverty Nurniqta; Johar, Rahmah; Anwar; Ishak, Muhammad Izzuddin Syakir; Oktavia, Rini
Mathematics Education Journal Vol. 19 No. 3 (2025): Mathematics Education Journal
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/mej.v19i3.pp609-628

Abstract

The implementation of Education for Sustainable Development (ESD) requires students to have higher order thinking skills (HOTs), which remain challenging for many Indonesian students. One key component of HOT is mathematical communication skills, which can be improved through the Problem-Based Learning (PBL) model. From an Islamic perspective, Sedekah (Sedekah) represents an act of giving that aligns with the Sustainable Development Goal (SDG) 1 objective of poverty alleviation. This study aims to determine the differences in enhancing mathematical communication skills and students' awareness of No-Poverty through PBL learning in the context of Sedekah in Islamic and Regular Schools. This study employed a quantitative approach and a quasi-experimental research design. The population was all students in one Regular School, Banda Aceh and one Islamic School, Aceh Besar, Aceh, Indonesia. This sample included 56 students in an experimental class and 56 in a control class. The instruments in this study were a mathematical communication skill test and a questionnaire assessing students' awareness of No-Poverty. The hypothesis was tested using MANOVA, the Independent t-test, and the two-way ANOVA. The effect size of PBL learning was determined based on the Cohen-d effect size calculation. The findings reveal a significant difference in the improvement of mathematical communication skills and awareness of poverty alleviation between students in regular and Islamic schools. However, no interaction was found between the PBL model contextualized in sedekah and students' educational levels regarding mathematical communication skills and awareness of poverty alleviation. These results suggest that the PBL model effectively enhances students' mathematical communication skills and awareness of poverty alleviation.

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