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All Journal Jurnal Pendidikan Matematika Undiksha Journal on Mathematics Education (JME) Journal on Mathematics Education (JME) Jurnal Karya Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Elemen Jurnal Gantang JRPM (Jurnal Review Pembelajaran Matematika) Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika JMM (Jurnal Masyarakat Mandiri) Jurnal Tadris Matematika Transformasi : Jurnal Pendidikan Matematika dan Matematika Jurnal Abdi: Media Pengabdian Kepada Masyarakat Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Journal Focus Action of Research Mathematic (Factor M) MATHEdunesa Journal on Education and Teacher Professionalism Jurnal Tadris Matematika Journal on Mathematics Education
Fiangga, Shofan
Universitas Negeri Surabaya
Religion Humanities Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Journal : Journal on Mathematics Education

 1 
Exploring students’ proportional reasoning in solving guided-unguided area conservation problem: A case of Indonesian students Sari, Yurizka Melia; Fiangga, Shofan; Milla, Yulia Izza El; Puspaningtyas, Nicky Dwi
Journal on Mathematics Education Vol. 14 No. 2 (2023): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v14i2.pp375-394

Abstract

Proportional reasoning has been greatly influencing the development of students’ mathematical abilities. Along with the area conservation ability, it helps elementary students comprehend area measurement. This exploratory study aimed to produce qualitative-descriptive data on elementary students’ proportional reasoning in solving the conservation of plane figures. The study used guided-unguided area conservation problems using a proportional reasoning level as the analysis framework. Data were collected from 4 primary school students in Sidoarjo, Indonesia, who were in fifth-grade class. The students' strategies used were identified to analyze the students' proportional reasoning in solving area conservation. Results show that the level of proportional reasoning varies from zero to two. Regarding the students' proportional reasoning levels, most of the students' strategies use visual clues and cute paste strategies. Only one student can reach the level of quantitative reasoning by using a formula to compare both area measurements. Interestingly, the problem of the conservation of plane figures failed to reveal students' formal proportional reasoning due to their insufficient knowledge of fractions, division, multiplication, and decimals. Some implications regarding students' proportional reasoning and interventions in the area conservation problem are discussed.
Aligning numeracy task design with SDG goals: Nutrition facts as a context for prospective mathematics teachers' problem posing Sari, Yurizka Melia; Kohar, Ahmad Wachidul; El Milla, Yulia Izza; Fiangga, Shofan; Rahayu, Dwi Shinta
Journal on Mathematics Education Vol. 15 No. 1 (2024): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v15i1.pp191-206

Abstract

Nutrition facts are the details on food packaging that describe its nutritional value, including serving size, calories, macronutrients like carbohydrates, protein, and fat, and micronutrients such as vitamins and minerals. These facts have mathematical concepts that can be utilized as a context for prospective teachers to create mathematical problems. By leveraging this real-world data, educators can contribute to multiple Sustainable Development Goals (SDGs), particularly SDG 3 (Good Health and Well-being), by promoting nutritional awareness, and SDG 4 (Quality Education) by enhancing student engagement and understanding through relatable examples. This study examines the profile of mathematical tasks created by prospective mathematics teachers using nutrition facts as a context that meets numeracy task criteria. Data were collected from 62 mathematical tasks created by 31 prospective teachers attending a realistic mathematics education course on numeracy based on a problem-posing task at a public university in Surabaya, Indonesia. The posed tasks were categorized into solvable or unsolvable tasks and the domains of the level of context use and the level of cognitive processes. Results revealed that the level of context use in the posed tasks varied from zero to second order. Surprisingly, most of the tasks were in the first-order level context. Most posed tasks reached the application level, with only a few identified as reasoning tasks. Interestingly, some tasks coded as second-order context were classified as reasoning tasks. The study provides implications for designing numeracy tasks using nutrition facts and interventions in teacher education related to numeracy task design.
Students’ cognitive processes in solving problem related to the concept of area conservation Ekawati, Rooselyna; Kohar, Ahmad Wachidul; Imah, Elly Matul; Amin, Siti Maghfirotun; Fiangga, Shofan
Journal on Mathematics Education Vol. 10 No. 1 (2019): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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Abstract

This study aimed to determine the cognitive process employed in problem-solving related to the concept of area conservation for seventh graders. Two students with different mathematical ability were chosen to be the subjects of this research. Each of them was the representative of high achievers and low achievers based on a set of area conservation test. Results indicate that both samples performed more cyclic processes on formulating solution planning, regulating solution part and detecting and correcting error during the problem-solving. However, it was found that the high achiever student performed some processes than those of low achiever. Also, while the high achiever student did not predict any outcomes of his formulated strategies, the low achiever did not carry out the thought process after detecting errors of the initial solution gained. About the concept of area conservation, the finding also reveals that within the samples’ cognitive processes, the use of area formula come first before students decided to look for another strategy such as doing ‘cut-rotate-paste’ for the curved planes, which do not have any direct formula. The possible causes of the results were discussed to derive some recommendation for future studies.
Prospective teachers’ iceberg designs in realistic mathematics education approach: Connecting mathematics and the SDGs Sari, Yurizka Melia; Fiangga, Shofan; El Milla, Yulia Izza; Shahrill, Masitah; Yanti, Liza Puspita
Journal on Mathematics Education Vol. 16 No. 3 (2025): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v16i3.pp981-1000

Abstract

The Iceberg Design framework has been utilized to represent the progression of students’ mathematical understanding, moving from informal, contextually grounded reasoning toward formal mathematical abstraction. This study investigates how prospective mathematics teachers develop Iceberg Designs within the Realistic Mathematics Education (RME) framework, a model that enhances contextual learning and supports mathematical literacy. Thirty prospective mathematics teachers from Universitas Negeri Surabaya participated in this qualitative study, collaboratively designing Iceberg models as part of their coursework. Data from document analysis, interviews, and observations were evaluated using content analysis, the research evaluated the depth and coherence of their designs across four key components: situational contexts which evaluates the relevance and variety of real-world situations, model-of representations which examines the assistance of mathematical representation to connect the context into mathematical concept, model-for abstractions which assess the use of mathematical models toward formalization, and formal mathematical concepts which assess the mathematical ideas being explicitly involved. The findings reveal significant variation in the quality and completeness of the Iceberg Designs. Models for equivalent ratios and quadratic equations exhibited strong integration, using multiple, varied contexts to bridge situational and formal mathematical understanding effectively. Conversely, designs for fraction multiplication and quadrilateral area conservation were often surface level, relying on a single, underdeveloped context that hindered abstraction. Importantly, the study underscores the potential of Iceberg Designs to support the Sustainable Development Goals (SDGs), particularly in fostering critical thinking, practical problem-solving, and meaningful contextual learning for high quality of education (SDG 4) and decent work for sustainable economic growth (SDG 8). These insights indicate the need for deeper integration of RME principles in teacher education and curriculum development through sustained investment in this area.
Co-Authors Abdul Haris Rosyidi Ahmad Wachidul Kohar Aldio Rahmata ANNISA DWI KURNIAWATI Atik Wintarti Aulia Rohmatul Hidayah Dayat Hidayat Dinda Putri El Milla, Yulia Izza Elly Matul Imah Endri Puji Lestari Enita Evangelista Lus Windyana Palupi Fadhil Septiawan Wahyu Laksana Faiq, Wang Achmad Althof Fitriyah, Awwalul Ikka Ananda Hakiki Janet Trineke Manoy Kartikasari, Linda Laila Tuljannah Lieska Maulita Shamimi Malik Abdul Azis Masitah Shahrill, Masitah Masriyah Masriyah Muhammad Afan Bisri Muhammad Faishal 'Afwi Mulyadi, Nabyllah Agnielia Muna Tania Attiba Nina Prihartiwi Pradnyo Wijayanti Prihartiwi, Nina Rinda Puspaningtyas, Nicky Dwi Rahaju, Endah Budi Rahayu, Dwi Shinta Rini Setianingsih Rooselyna Ekawati rowldotul jannah, renata nurlaily Saputra, Muhammad Rizqi Setianingsih, Rini Siti Chusnul Chotimah Siti Khabibah Siti M. Amin Siti Maghfirotun Amin Sri Suryanti Susanah Susanah Susanah Tatag Yuli Eko Siswono Ulum, Qoidatul Wicaksana, Priza T. S. Yanti, Liza Puspita Yuliani, Salsa Bella Yuniawati, Sinta Yurizka Melia Sari