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INDONESIA
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 5 Documents
 1 
Search results for , issue "Vol 4, No 1 (2023): March" : 5 Documents clear
Suten Games: Exploration of Empirical and Theoretical Probability for Junior High School Mathematics Learning Dewi Oktaviani; Dewi Kinasih
Ethnomathematics Journal Vol 4, No 1 (2023): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v4i1.59575

Abstract

Suten is one of the local games often played for determining a purpose fairly. The game is played in pairs by choosing Elephant, Ant, or Man by each player. The choosing is one of the applications of the probability concept learned by students of the junior-high school. The use of the game in the instructional process can aid students in relating the probability concept they learn to real events. The objective of the present study is to explore     the concepts of empirical and theoretical probabilities in the Suten game. The study is descriptive qualitative with an ethnographic approach to present detailed description and analysis concerning the Suten game in relation to probability material. Research results show the finding of the concepts of empirical and theoretical probabilities in the Suten game, especially in showing whether or not that Suten is a fair game. The game can be used in mathematics learning to introduce to students the concepts  empirical probability, sample space, sample point, and theoretical probability. In addition, positive aspects can be obtained when the Suten game is integrated in learning such as, among others, inter-appraisal of decisions, training intuition, and using the abilities of creative thinking in searchimg for strategies. 
Exploration of the weaving activities in Timor Island for mathematics learning Wara Sabon Dominikus; Patrisius Afrisno Udil; Ofirenty Elyada Nubatonis; Irna K. S. Blegur
Ethnomathematics Journal Vol 4, No 1 (2023): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v4i1.58473

Abstract

The inclusion of ethnomathematical perspectives into the mathematics education of indigenous student is often described as being beneficial. Drawing on weaving activities from West Amarasi society in Timor Island, Indonesia, this paper examines the results from the exploration of mathematical concepts that exist and are practiced in this society. This is a descriptive exploratory with ethnographic qualitative approach research. Data were collected in March 2022 through observations, interviews, and documentation. Some indigenous people from Merbaun Village, West Timor, in East Nusa Tenggara Province, Indonesia, were participants in this research. The results showed that there were several ethnomathematics characteristics in the weaving activities of the West Amarasi society: counting, locating, measuring, designing, explaining, the use of implication logic, and estimating. It was also found mathematics concepts and ways of thinking such as the concept of multiplication as repeated addition, parallel of straight lines, geometric shapes, reflection, rotation, sizes and units, and logical implication. This finding can be used as a source of mathematics learning by teachers, researchers or mathematics education practitioners not only those local in West Amarasi but also in other similar places around the world.
The Geometry Transformation Concepts in Bead Craft Motifs by the Kenyah Dayak Tribe Muhammad Hafizh Naufal Yahya; Haeruddin Haeruddin; Achmad Muhtadin; Nanda Arista Rizki
Ethnomathematics Journal Vol 4, No 1 (2023): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v4i1.58425

Abstract

When studying mathematics, many students consider mathematics to be a difficult subject because they see it as a close system that prioritizes standards of rigor, speed, and memory. Conventional learning methods might make students bored. Various model is needed to overcome this. One of which is the culture associated with learning mathematics, known as ethnomathematics. The purpose of this study was to explore the bead crafts of the Kenyah Dayak tribe, located in Kalimantan, Indonesia, that develop heritage motifs attributed to the concept of geometric transformations on rotation and dilatation. This type of research was qualitative research involving observation, interviews, and documentation. The subject of this study was bead craft in the local area and the object of this study was the concept of geometric transformation on rotation and dilatation that exists in the craft motifs of the beads made. The data obtained in this study provides insights into the various cultural objects that can be used for triggering mathematics thinking. Through this resource, students may understand geometric concepts such as rotation and dilation, applicable to the real context of their daily life.
The Imaginary Line Across Yogyakarta Land as an Ethnomathemathics Study Febriani Febriani; Aditia Pramudia Sunandar; Ulfa Aulia Syamsuri; Wipsar Sunu Brams Dwandaru
Ethnomathematics Journal Vol 4, No 1 (2023): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v4i1.59984

Abstract

In attempt to explore Yogyakarta, the heritage city of Indonesia, the well known landmark, Tugu Pal Putih and the Yogyakarta Imaginary Line is explored. The purpose of this paper is to describe that this cultural context may be used as a reference for geometry learning. The method used in this research is a descriptive qualitative involving two historian experts in interviews. The results are that this line can be explored through ethnomathematics studies based on points, straight lines, comparison of distances between points on the imaginary line and the extension of the imaginary line. This line can be illustrated by an imaginary point located at the Tugu Pal Putih as the starting point to focus on thinking of the mathematical object. This line not only divides Yogyakarta imaginatively but also according to natural boundaries such as rivers. The extension of the imaginary line forms an area called the fertility area. The description of the patterns formed on the Yogyakarta Imaginary Line through ethnomathematics is expected to be used further as materials in the mathematics learning process.
The Position of Points, Lines and Planes in a Mosque Construction for Geometrical Visualisation Riza Isna Khoirun Nisa; Rania Nova Dechandra; Wahyuni Eka Maryati; Sri Prihatin Hartati
Ethnomathematics Journal Vol 4, No 1 (2023): March
Publisher : Universitas negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ej.v4i1.59929

Abstract

The purpose of this qualitative descriptive study was to identify the concepts of the positions of points, lines, and planes in the building elements of the Kauman Gedhe Mosque foyers such as pillars, ceilings, crossbars and the roof of the building. The research data was obtained from direct observation which was documented using a cellphone camera and visualized with the help of GeoGebra. The results of the study show that there are on the building elements of the Mosque concepts of the position of a point to a line (a point is inside the line and a point is not on the line), a point to a plane (a point is in the plane and a point is outside the plane), a line to a line (two parallel lines, two perpendicular intersecting lines, two non-perpendicular intersecting lines, two coincident lines, and two intersecting lines), a line to a plane (parallel lines, a plane perpendicular, and a plane coincident with a plane), and a plane to a plane (two parallel planes, two non-perpendicular intersecting planes, two perpendicularly intersecting planes, and two coincident planes). Based on the results of this study, it is concluded that there are 16 mathematical concepts found in the Gedhe Kauman Mosque. Visualization of abstract mathematical objects can easily be imagined through cultural sites. This is able to lighten cognitive loads so that it is easy to understand and students are encouraged to construct their own understanding based on the experience they have gained. 

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