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Ethnomathematics Journal
Published by Universitas Negeri Yogyakarta
ISSN : 27989755     EISSN : 27763676     DOI : https://doi.org/10.21831/
Core Subject : Education, Art, Social,
Arts Education Mathematics Social Sciences Other
Ethnomathematics Journal is an open access - international journal that provides a forum for publishing research reports, theoretical review, ideas, or innovation of mathematics education including ethnomathematics referring to the works of DAmbroisio and the colleagues. This journal is designed and devoted to lectures, researchers, school teachers, teacher educators, as well as university students who want to publish their original works or thoughts. Besides regular writers, the journals will also invite contributors who are experts in mathematics education either from Indonesia or abroad.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 50 Documents
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Learning the concept of two-dimensional figure through Borobudur artifacts for lower graders of elementary school mathematics Azamul Fadhly Noor Muhammad; Marsigit Marsigit; Soeharto Soeharto
Ethnomathematics Journal Vol 2, No 2 (2021): September
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v2i2.39885

Abstract

Important changes in mathematics teaching need to be made to accommodate the constantly changing students’ demography in the lower grades of Elementary Schools, particularly in mathematics competence. Teachers must contextualize mathematics learning by linking mathematics content to the culture and real-life experiences of low-grade students at the Elementary School level. Mathematical concepts taught in elementary schools shall be relevant with students' personal experiences in everyday life. Throughout history, mathematics has been widely used by different groups in a variety of ways. Arithmetic and geometry are used to meet the daily needs of society, both culturally and socially. Ethnomathematics is defined as the way people from different cultures use mathematics in their daily lives. Elementary school students are only required to learn the concept of simple two-dimensional figure in their mathematics learning. Some complexities in this topic are related to the way to deal with irregular shape of two-dimensional figures or the different length of the sides, which can actually be solved through the removal or addition of the different parts of the shape to resemble the main shape.
Kemampuan komunikasi matematis tulis siswa Samin dalam memecahkan masalah geometri Setyo Riyadi; Kurnia Noviartati; Zainal Abidin
Ethnomathematics Journal Vol 2, No 1 (2021): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.786 KB) | DOI: 10.21831/ej.v2i1.36192

Abstract

Keterampilan komunikasi matematis merupakan salah satu tujuan pembelajaran matematika. Tujuan penelitian ini adalah mendeskripsikan kemampuan komunikasi matematis siswa Samin dalam menyelesaikan masalah geometri. Jenis penelitian ini adalah penelitian deskriptif dengan pendekatan kualitatif. Subjek penelitian adalah anggota masyarakat adat Samin yang duduk di kelas VII SMPN 1 Margomulyo. Tahapan penelitian meliputi persiapan, pengumpulan data, analisis data, dan pembuatan laporan. Instrumen penelitian yang digunakan adalah Tes Kemampuan Matematika (TKM), Tes Kemampuan Komunikasi Matematika (TKKM), dan Pedoman Wawancara. Hasil penelitian menunjukkan bahwa keterampilan komunikasi matematika tertulis siswa dalam menulis ide matematika (penggunaan model matematika, rumus atau simbol) dengan jelas dan tepat untuk menyelesaikan suatu masalah tergolong rendah, Keterampilan komunikasi matematis tertulis siswa dalam menulis alasan jawaban yang diberikan adalah relatif rendah, keterampilan komunikasi matematika tertulis siswa dalam menulis ulang gagasan orang lain dengan menggunakan bahasanya sendiri tergolong sedang, dan keterampilan komunikasi matematika tertulis siswa dalam mengungkapkan kembali ide orang lain diklasifikasikan rendah.Written mathematical communication skills of Samin students in solving geometric problemsAbstractMathematical communication skills are one of the goals of mathematics learning. The purpose of this study is to describe the mathematical communication ability of Samin students in solving geometric problems. The type of this research was a descriptive study with a qualitative approach. The research subjects were members of the Samin indigenous people who were in Class VII at SMPN 1 Margomulyo. The stages of the research included preparation, data collection, data analysis, and report making. The research instruments used were the Mathematics Ability Test (TKM), the Mathematical Communication Ability Test (TKKM), and Interview Guidelines. The results show that the students 'written mathematical communication skills in writing mathematical ideas (the use of mathematical models, formulas, or symbols) clearly and precisely to solve a problem were classified as low. The students' written mathematical communication skills in writing the reasons for the answers given were relatively low, students' written mathematical communication skills in re-writing others' ideas using their own language were moderate, and students' written mathematical communication skills in re-expressing other people's ideas were classified as low.
The type of ethnomathematics in fish trading in sapuran market, Wonosobo Awal Mulia Rachmanto; Riawan Yudi Purwoko
Ethnomathematics Journal Vol 1, No 1 (2020): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (866.811 KB) | DOI: 10.21831/ej.v1i1.31479

Abstract

This study aims to reveal the type of ethnomathematics used in the process of counting fish in Sapuran Market, Wonosobo, which can be applied in teaching processes. The method used in this study is the observation of fish trading and interviews with fish traders in Sapuran Market, Wonosobo.  The research findings show that the process of counting fish in the market applies ethnomathematics, including the addition of integer and reduction of the integer. The mathematical concept used in the addition operation is the storing technique, while the reduction operation applies the borrowing technique. The implementation of mathematics teaching using the ethnomathematics approach adopted from the activities of fish counting at Sapuran Market, Wonosobo can help improve students’ understanding of the addition and reduction materials for elementary school.
Development of ethnomathematics-based learning tools to achieve mathematical literacy skills of junior high school students Anisa Mita Ristanti; Nila Mareta Murdiyani
Ethnomathematics Journal Vol 2, No 2 (2021): September
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v2i2.43302

Abstract

The purpose of this research is to develop an ethnomathematics-based learning tool to achieve mathematical literacy skills of junior high school students with valid, practical, and effective qualifications on polyhedron subjects. This research used a mixed research method with ADDIE research development procedures. This study involved the eighth graders of SMP Negeri in Wonosobo Regency, Centra1 Java as the research objects. The research instruments were validation sheets, student response questionnaires, observation sheets of learning implementation, and test questions of mathematical literacy skills. The results showed that: 1.) The learning tool was declared valid, indicated by the result of the lesson plan assessment obtaining a score of 120, which was classified in the very good criteria, and the results of the student worksheet assessment obtaining a score of 159, which was included in the very good criteria; 2.) The learning tool was declared practical as indicated by the score on the student response questionnaire of 65,13, which was included in the good criteria. The percentage of learning implementation was of 89%, included in the very good criteria; and 3.) The learning tool was declared effective as indicated by an increase in students’ pretest and posttest scores, from 64,22 to 83,67, and 84% of students’ completeness on the posttest, having met the minimum criteria of good.
Aspek matematis dalam tradisi nugal masyarakat Suku Dayak Sebaruk Daerah Jentawang, Ketungau Hilir, Kalimantan Barat Mariani Dian
Ethnomathematics Journal Vol 2, No 1 (2021): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.832 KB) | DOI: 10.21831/ej.v2i1.35870

Abstract

Nugal adalah tradisi yang dilakukan secara turun temurun oleh suku Dayak Sebaruk, yang tinggal di Kampung Jentawang, Ketungau Hilir, Kalimantan Barat. Nugal dilakukan pada saat pemilik lahan sudah membuka lahannya untuk berladang. Penelitian ini bertujuan untuk menggali aspek-aspek matematis yang tampak pada ritual adat yang dilakukan ketika hendak nugal sampai pada saat proses nugal di masyarakat suku Dayak tersebut. Jenis penelitian ini adalah penelitian deskriptif kualitatif, yang akan menjelaskan tradisi nugal, mulai dari ritual persiapan hingga pelaksanaannya. Proses pengumpulan data dilakukan dengan menggunakan wawancara terstruktur, terkait dengan pelaksanaan tradisi ini. Analisis dilakukan melalui reduksi data sehingga diperoleh rangkaian kegiatan yang dilakukan pada tradisi nugal serta aspek-aspek matematis yang tampak di dalamnya. Hasil penelitian ini berupa beberapa aspek matematis seperti beberapa contoh pernyataan logika serta pola-pola yang mengarah pada konsep barisan dan deret. Selain itu terdapat pula unsur geometri seperti translasi, refleksi dan menghitung jarak antar titik.Mathematical aspects in the nugal tradition of the Dayak Sebaruk Tribe, Jentawang Region, Ketungau Hilir, West KalimantanAbstractNugal is a tradition carried out by Dayak Tribe from generation to generation. Generally, Nugal was done together with the community where the landlord is staying, after the landlord cleared the land for farming. This study aims to explore the mathematical aspects seen in the Nugal process, as well as the rituals before the process of Nugal. The rituals performed in each region may be different. Therefore, the study limited to the Nugal tradition carried out by the Dayak Sebaruk Tribe, who live in Jentawang Village, Ketungau Hilir, West Kalimantan. The research is descriptive qualitative research, where the tradition will be explained, from the ritual to the method used in the process of Nugal itself. The data collected using the systematic interview, related to the implementation of this tradition in the community. Analysis of the data that has been collected carried out using data reduction, so that it is obtained a series of activities which is conducted in Nugal and the mathematics aspects that appears in it. The results of this study were either in the ritual and the process of Nugal, the mathematics aspects like logic statements and patterns that could be used for bringing the students to the sequences and series concept, was found. The patterns also could be used to bring the students for understanding the geometric concepts like translation, reflection and also for determining the distance of two points
Batik Jlamprang with Koch snowflake and Koch anti-snowflake fractal geometry using Desmos Tri Sedya Febrianti; Fakhrunnisa Cahya Afifi
Ethnomathematics Journal Vol 3, No 1 (2022): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v3i1.48775

Abstract

Batik Jlamprang is a cultural heritage from Pekalongan. This batik motif has a round shape and floral ornaments. The motif of batik Jlamprang is similar to the Koch snowflake. Mathematically, batik Jlamprang can be categorized as one of the shapes of fractal geometry. There are many known shapes of fractals, some of which are Koch snowflake and Koch anti-snowflake. The difference between Koch snowflake and Koch anti-snowflake lies in the fractal generation process. Koch anti-snowflake is the opponent of Koch snowflake. The main step of the generation process is done to develop the Koch snowflake and Koch anti-snowflake function formulas, followed by iterations. The making of the batik motif is originally carried out traditionally, which has disadvantages in terms of time and cost. However, this study proposes that the motif of batik Jlamprang can be designed mathematically with the help of Desmos software. This will definitely shorten the production time and reduce production costs. The Desmos software was chosen because it has several advantages, including easy to operate via a mobile phone or a computer. This paper examines the function formulas, iterations, and application of Koch snowflake and Koch anti-snowflake fractal geometry in designing batik Jlamprang assisted by Desmos. The method used was literature review by collecting several relevant sources. The fractal generation process produced the function formulas of Pn (perimeter) and An or Sn (area) which are necessary for designing the batik Jlamprang motif. The visualization process was carried out on Desmos, followed by geometric transformation and cloning to produce the batik Jlamprang motif as desired.
Ethnomathematics in the culture of mountain rice farming of the Dayak Kanayatn community Yudiani Linling; Nuryadi Nuryadi
Ethnomathematics Journal Vol 3, No 1 (2022): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v3i1.48725

Abstract

Rice is the staple food for people in West Kalimantan. One of the regions with rice farming culture is the Tunang village in Mempawah Hulu sub-district, Landak district, West Kalimantan, which is influenced by the habits of the population and geographical location. There are a series of processes for growing rice in the village that are inseparable from culture and can be linked to mathematics (ethnomathematics). The objective of this study is to identify the ethnomathematics of the cultivation of mountain rice or moton rice in the Dayak Kanayatn tribe, especially the Dayak Ahe tribe. This study uses a qualitative approach with a descriptive method. Data collection techniques include literature studies, surveys, and interviews. The results show that rice farming activities in the Dayak Ahe community include clearing the land (nabas uma), cutting down trees (nabang), burning the field (nunu uma), cleaning the field after the burning (marasehan uma), sowing (nugal uma), weeding (ngarumput uma), and harvesting the rice (bahanyi). These processes are accompanied with a series of ritual ceremonies, namely nabo’ panyugu nagari, nabo’ panyugu tahutn/naik dango, ngawah, batanam padi (which consists of ngalabuhatn, ngamalo lubakng tugal, and ngiliratn panyakit padi), ngaladakng buntikng padi, ngabati’, and ngaleko. There are ethnomathematics values contained in the ceremonies, namely points and lines, three-dimensional figures, two-dimensional shapes, counting, and symmetry of shape.
Beteng Cepuri as ethnomathematics of elementary schools Aziz Murof Suharyanto; Dafid Slamet Setiana; Ana Fitrotun Nisa; Muhammad Irfan
Ethnomathematics Journal Vol 3, No 1 (2022): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v3i1.46122

Abstract

Ethnomathematics objects can be found in artifacts in the form of historical buildings. One of the historical buildings in Kotagede, Yogyakarta, Indonesia, is the Beteng Cepuri fortress. The purpose of this research is to conduct an exploration of any mathematical concepts contained in Beteng Cepuri that can be used as a source of learning mathematics as an effort to develop ethnomathematics for learning elementary school mathematics. The researchers invited the fifth-graders of an elementary school in Kotagede, nearby the Cepuri Beteng, to explore and learn mathematical concepts. The results show that there is a relationship between the construction of the fort building and the concept of geometry in several parts of the Cepuri Beteng. The sections are in the form of cuboids and rectangles. Taking the students to visualize the artifacts may assist them to build 3D shape recognition. It can be concluded that ethnomathematics is able to create a very good interest in learning followed by concept acquisition.
Studying mathematics around Keraton Yogyakarta Luluk Mauluah
Ethnomathematics Journal Vol 3, No 1 (2022): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v3i1.40000

Abstract

Studying mathematics in elementary school using cultural resources can make the learning process more meaningful. Students can explore learning resources for mathematics at the Yogyakarta Palace while getting to know the local culture. Learning resources that can be used for elementary school mathematics learning include gunungan sekaten, batik, the Bangsal Manganti hall, the stairs at the palace, etc. Based on the analysis carried out by the researcher, the identified learning resources at the Kraton can be used for Grades 1 to 6. From D’Ambrosio's theory of classification of ethnomathematics activities, there are 5 categories of learning resources in the Palace, including counting, weighing, measuring, ordering and classifying which can be used in elementary school mathematics learning.
Kambuik Kuantan Singingi culture for realistic mathematics education approach Aulia Isroi; Suripah Suripah; Sri Rezeki
Ethnomathematics Journal Vol 3, No 1 (2022): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v3i1.44988

Abstract

The mathematics learning tools used by teachers today are often less attractive and monotonous. Teachers are rarely objects in their culture. The environment around students can be utilized for the learning process. Many have argued that culture-based learning tools can be used in learning. This study aimed to validate mathematics learning instruments involving Kambuik Kuantan Singingi culture. The learning is intended to bed implemented based on the Realistic Mathematics Education (RME) approach in junior high school. The instrument was developed using the Plomp model. The validation data were collected using a set of questions. For the lesson plan, there were six aspects measured, namely the content, presentation, learning activities, learning resources, and assessment instruments, while for the worksheets, five aspects were included: content, didactic, construction, technical presentation, and time allocation. Three experts in the area were invited as validators. The results suggested that the learning instruments (lesson plans and worksheets) were valid to be implemented at school. It can be concluded that the Kambuik Kuantan Singingi culture can be used as a resource of learning in the RME framework.

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