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All Journal CAUCHY: Jurnal Matematika Murni dan Aplikasi HISTOGRAM: Jurnal Pendidikan Matematika Unisda Journal of Mathematics and Computer Science (UJMC) Journal of Education and Learning Mathematics Research (JELMaR) Oryza : Jurnal Pendidikan Biologi Indonesian Journal of Research and Educational Review (IJRER) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Al-Khidmah: Jurnal Pengabdian Kepada Masyarakat Tematik: Jurnal Konten Pendidikan Matematika Journal of Applied Statistics, Mathematics, and Data Science Media Pendidikan Matematika
Putra, Eric Dwi
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Ethnomathematics in Buying And Selling Transactions of Cracker Traders at Puger Market Khoiroh, Jazilatul; Putra, Eric Dwi; Murtinasari, Frida
Journal of Education and Learning Mathematics Research (JELMaR) Vol 6 No 2 (2025): November 2025
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v6i2.3842

Abstract

This study examines the application of ethnomathematics in the buying and selling transactions of cracker traders at Puger Market, Jember Regency. Ethnomathematics is a study that integrates mathematical elements with community culture. The purpose of this study is to identify how mathematical practices, particularly arithmetic operations such as addition, subtraction, multiplication, and division, are applied contextually by traders in their daily economic activities. This study uses ethnography with a descriptive approach, collecting data through observation, interviews, and documentation. The results show that traders are able to calculate prices and change manually quickly and accurately, even without formal mathematics education. This suggests that the practice of counting in trading activities reflects the real application of mathematical concepts in everyday life and can be used as a source of contextual learning in schools.
The Reflexive H-Strength on Some Graphs Sullystiawati, Lusia Herni; Marsidi, Marsidi; Putra, Eric Dwi; Agustin, Ika Hesti
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 9, No 1 (2024): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/ca.v9i1.23172

Abstract

Let G be a connected, simple, and undirected graph with a vertex set V(G) and an edge set E(G).  The irregular reflexive -labeling is defined by the function  and  such that  if  and  if , where  max . The irregular reflexive  labeling is called an -irregular reflexive -labeling of the graph  if every two different sub graphs  and  isomorphic to  it holds , where  for the sub graph . The minimum  for graph  which has an -irregular reflexive -labelling is called the reflexive  strength of the graph  and denoted by . In this paper we determine the lower bound of the reflexive  strength of some subgraphs,  on , the sub graph  on  the sub graph  on  and the sub graph  on .
Student Gestures when Solving Local Wisdom-Based Mathematics Problems Putri, Reta Eksa; Sulisawati, Dwi Noviani; Putra, Eric Dwi
Journal of Education and Learning Mathematics Research (JELMaR) Vol 4 No 2 (2023): November 2023
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v4i2.113

Abstract

When solving math problems, students make spontaneous movements called gestures. The purpose of this research is to find out the variations of gestures that appear when students solve math problems related to rotational geometry based on local wisdom. The qualitative approach used in this research is a descriptive research type. Test questions, documentation results, observations, and interviews were used as research instruments. The subjects of this study were four students in class XI for the 2022/2023 academic year at SMA Negeri Balung. The results showed that the group of students with high abilities used gestures more than students with low abilities. Students with high ability in solving math problems use 11 iconic gestures, 8 metaphoric gestures, and 24 deictic gestures. Meanwhile, the group of students with low abilities used 7 iconic gestures, 6 metaphoric gestures, and 12 deictic gestures. Based on the distribution of the number of student gestures when solving math problems, the gesture that appears the most is the deictic gesture, and the one that appears the least is the metaphoric gesture.
Students' Reflective Abstraction in Solving Ethnomathematics-Based Mathematics Problems Balila, Jesika Nur Intan; Putra, Eric Dwi; Lutfiyah, lutfiyah
Journal of Education and Learning Mathematics Research (JELMaR) Vol 4 No 2 (2023): November 2023
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v4i2.117

Abstract

Reflective abstraction is a process of reflection on previously learned concepts and applied in new situations. The purpose of this study is to describe the reflective abstraction ability of junior high school students in solving math problems in terms of mathematical ability. In this study using qualitative research type. The data sources for this study were 4 students of class VIII, namely 2 students with high ability and 2 students with low ability. The results showed that students who have high ability, recognition level to remember and identify previous activities related to the problem at hand. At the representation level, students can translate information into mathematical models correctly. At the structural abstraction level, students can solve problems correctly, and are able to overcome difficulties in solving problems. At the structural awareness level, students are able to provide arguments about the results of the answers that have been done. While students with low ability, at the recognition level are able to remember previous activities related to the problem at hand. At the representation level, students are able to translate information into mathematical models, but students are less careful and wrong so that at the structural abstraction level students are able to solve problems, but the final results obtained are not correct. At the structural awareness level, students are able to solve and explain the steps in the problem. Based on the results of the study, teachers should guide students by providing problem exercises that can increase reflective abstraction, especially considering student responses and learning outcomes collected from high and low ability students. For this reason, further research needs to be carried out with other student data sources.
Ethnomathematics of Lahbako Dance Movement In The Perspective Of Mathematical Literacy Of Geometry Concept Wardah, Nabilahdhia Rahayu Prima; Panglipur, Indah Rahayu; Putra, Eric Dwi
Journal of Education and Learning Mathematics Research (JELMaR) Vol 4 No 2 (2023): November 2023
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v4i2.118

Abstract

Movement in a dance is a visual symbol full of meaning conveyed to be accepted by dance lovers from the whole dance performed. The selection of dance movements is related to the mathematical concept of illustrating its meaning (ethnomathematics). In addition, there is a mathematical literacy process of geometry concepts revealed in dance movements. This becomes a meaningful symbol that becomes a wealth of dance movements that are increasingly interesting to present. The purpose of this research is to identify the ethnomathematics of lahbako dance in the perspective of mathematical literacy of geometry concepts. qualitative research with a descriptive approach to explain the data and its discussion. Data collection methods of interviews, observation, and documentation with data validity test source triangulation. Subjects 2 people from Arutala dance studio and Hastarini. The results obtained are dance movements that come from different habits and interpretations of dancers but the actual meaning of the movements is the same. Ethnomathematics in lahbako dance successfully illustrates the meaning of the movements conveyed in lahbako dance through hand, finger, foot, and body movements that modify into lines, acute and obtuse angles, and triangular and rectangular fields. The mathematical literacy perspective of the geometric concepts of lines, angles, and fields is visualized conceptually, the application of real contexts of daily life, geometric thinking, and the delivery of mathematical language helps in illustrating the message conveyed in a lahbako dance, namely the activities of tobacco farmers. Further research recommendations for dance movements that jump or repeatedly back and forth and the count used by dancers in each movement.
Exploring Ethnomathematics to Gayasan Tobacco Warehouse at Jember, East Java, Indonesia Akbar, Ahmad Maulana; Marsidi, Marsidi; Putra, Eric Dwi
Journal of Education and Learning Mathematics Research (JELMaR) Vol 5 No 1 (2024): Mei 2024
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v5i1.132

Abstract

Ethnomathematics which link culture with community activities, certainly has characteristics that support each other with mathematical concepts. Ethnomathematics is mathematics practiced by specific cultural groups in society. This study examines the mathematical concepts in the Gayasan tobacco warehouse building in Jenggawah District, Jember Regency. In the study, researchers used qualitative descriptive research with an ethnographic approach. Data collection techniques are observation, interviews, and documentation. Data analysis techniques are done through data reduction, presentation, analysis, and exposure. The results showed that in the Gayasan tobacco warehouse, Jenggawah District, Jember Regency, there are mathematical concepts that will be studied further in the future. The author focuses on applying geometric concepts such as building flat, building space, lines, angles, number patterns, congruence, and awakening in research. Each longkang is bordered with bamboos that function as poles, also known as "longkang sides," which have different distances and are arranged into a pattern of numbers. The conclusion is that the structure of tobacco warehouses contains mathematical concepts such as number patterns, angles, flat builds, space builds, lines, congruents, and awakening
Exploring Ethnomathematics on The Batik Patterns of Jember In Mathematics Concept Rizqoh, Zidna; Anas, Aswar; Putra, Eric Dwi
Journal of Education and Learning Mathematics Research (JELMaR) Vol 5 No 1 (2024): Mei 2024
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v5i1.137

Abstract

This study aims to identify and describe mathematical concepts and describe the results of ethnomathematics exploration contained in Jember batik motifs. The type of research used in this study is qualitative research with an ethnographic approach. The research instruments used were observation, tests, and interviews with batik artisans. The results of this study indicate that the combination of coffee bean and tobacco leaf motifs has applied mathematical concepts of geometry. In the motif of coffee beans and tobacco leaves from the Nhora Pangetu hand-written batik production house, there are mathematical concepts of curves, points, circles, and the concept of dilation. The motif of coffee beans and tobacco leaves from the Gangsar Ngaidin batik production house contains mathematical concepts of reflection (mirroring), congruence, and flat shapes of circles, triangles, and rhombuses.
Identify Mathematical Gestures of Deaf Students in Solving Mathematics Problems Heldiana Ferly, Nonny Zakiyanita; Putra, Eric Dwi; Marsidi, Marsidi
Journal of Education and Learning Mathematics Research (JELMaR) Vol 5 No 1 (2024): Mei 2024
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v5i1.147

Abstract

Gestures that can help students communicate mathematically can be called gestures. This study aims to find out gestures that can help deaf students when solving math problems. This research uses a descriptive approach with a qualitative research type. The data sources used are test questions, observations, and interviews. This research was conducted at SLB ABC Balung with the subject of research as many as 2 SMALB students. The results of this study show that both subjects have their own characteristics when working on the problem. The first student prefers to count using movements assisted by scribbles, while the second student prefers to use hand gestures. In the first student, gestures occurred 38 times, consisting of iconic gestures 17 times, metaphorical gestures 10 times, and deictic gestures 11 times. In the second student, gestures occurred 40 times, consisting of iconic gestures 13 times, metaphorical gestures 5 times, and deictic gestures 22 times. Based on the results of this study, the gesture most often used when deaf students solve the problem is the deictic gesture, which occurs 33 times, and the gesture that appears the least is the metaphorical gesture, which occurs 15 times.
Analisis Kemampuan Berpikir Kritis Siswa dalam Menyelesaikan Masalah Matematika Berbasis Etnomatematika Hari, Ayutia Khoirotul; Putra, Eric Dwi; Sujiwo, Dimas Anditha
Media Pendidikan Matematika Vol. 13 No. 1 (2025)
Publisher : Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i1.12549

Abstract

Mathematics is one of the branches of science that continues to develop to meet human and technological needs. This means that students must improve their ability to think systematically, analytically, logically, critically, and creatively. The main problem in this study is how to describe students' critical thinking skills in solving math problems through the ethnomathematics approach. The purpose of this study is to describe students' critical thinking skills in solving math problems using the ethnomathematics approach, which combines mathematical materials with their local culture. This research uses a qualitative descriptive approach with research instruments in the form of tests and interviews involving data analysis from interviews and test answers.  The results showed that high ability students (KT1 and KT2) met all four indicators, namely interpretation, analysis, evaluation, and inference. Students with low ability (KR1 and KR2) only fulfill two indicators, namely analysis and interpretation. This study also shows that the traditional game of dam-daman is effective in describing students' mathematical ability to think critically. To help low-ability students fulfill all critical thinking criteria, further research is needed.
Eksplorasi Etnomatematika pada Kostum Tari Lahbako Imronita, Dinda Khusnul; Panglipur, Indah Rahayu; Putra, Eric Dwi
Media Pendidikan Matematika Vol. 13 No. 1 (2025)
Publisher : Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i1.15374

Abstract

Mathematics is often perceived as an abstract discipline, detached from everyday life. However, mathematical concepts can actually be found within local cultures, one example being in the costume of Tari Lahbako, a traditional dance from Jember that represents the life of tobacco workers. This study aims to explore elements of ethnomathematics in the Tari Lahbako costume using a descriptive approach with ethnographic methods. Data were collected through direct observation and in-depth interviews at two dance studios: Sanggar Sweeta Collection and Sanggar Ninien Ariesitta. The results indicate that costume elements such as the hair bun, apron, skirt, and other accessories contain geometric shapes such as squares, circles, rhombuses, trapezoids, as well as concepts of reflection, parallel lines, and right angles. In addition, the presence of symmetrical patterns and regularity in the costume reveals an intuitive mathematical understanding by the designers. Therefore, the Tari Lahbako costume not only holds aesthetic and cultural value but also has great potential to be used as a medium for contextual mathematics learning. Through an ethnomathematical approach, students can understand mathematical concepts more concretely, meaningfully, and rooted in local wisdom
Co-Authors Akbar, Ahmad Maulana Allafa, Anya Birru Anas, Aswar Ardhana, Iqshal Sulton Aswar Anas Balila, Jesika Nur Intan Cahyanti, Citra Devarigata, Ervatamia Syah Dimas Anditha Cahyo Sujiwo Dwi Noviani Sulisawati Efendi, Mohammad Rizky Frida Murtinasari, Frida Hari, Ayutia Khoirotul HARIADI, WIGID Hasanah, Faizatul Heldiana Ferly, Nonny Zakiyanita Hidayatin, Nur Ika Hesti Agustin, Ika Hesti Imronita, Dinda Khusnul Isnaini, Farida Ivania, Gissela Putri Khoiroh, Jazilatul Lutfiyah Lutfiyah Maftuhah Maftuhah Maulana, Thowil Fikri Miftahus Surur, Miftahus Mohammad Syafii panglipur, indah rahayu Puspitasari, Yesi PUTRI WULANDARI Putri, Reta Eksa Qomaria, Laela Ria Amalia Rizqoh, Zidna Saputra, Mohammad Wahyu Dimas Siti Aminah Sujiwo, Dimas Anditha Sulantari Sulantari Sulantari, Sulantari Sullystiawati, Lusia Herni Suyitno, Yesica Melia Rani Wardah, Nabilahdhia Rahayu Prima Wigid Hariadi