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All Journal Transformasi : Jurnal Pendidikan Matematika dan Matematika Journal on Math and Science Educational Technology
Galih Setiawan
Universitas PGRI Banyuwangi
Education Mathematics

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“GUESS GEOMETRY”: MEDIA PENUNJANG APERSEPSI KONSEP KESEBANGUNAN DAN KEKONGRUENAN BANGUN DATAR Doni Setya Darmawan; Galih Setiawan; Nazalia Rahma; Devi Dwi Jayanti; Husnul Khotimah; Lailatul Fitria
TRANSFORMASI Vol 10 No 1 (2026): TRANSFORMASI: Jurnal Pendidikan Matematika dan Matematika
Publisher : Program Studi Pendidikan Matematika FMIPA Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/tr.v10i1.8142

Abstract

The long time span between materials makes it possible for students to forget the concepts of two-dimensional shapes. Therefore, a method is needed to remind students, one of which is by using game media. The purpose of this study was to apply the “Guess Geometry” media in the apperception process of the concept of quadrilaterals and triangles as a basis for learning the concept of similarity and congruence. The subjects were six seventh-grade students at one of the Islamic Junior High Schools in Banyuwangi with high abilities. This study used qualitative methods. Data collection was carried out using observation, interviews, and documentation methods. The researcher acted as the main instrument and was assisted by observation and interview guidelines. Data were analyzed qualitatively using the Miles & Huberman model. The study resulted in 3 subjects winning according to the indicator by guessing 3 to 5 two-dimensional shapes correctly in less than 30 minutes. The other 3 subjects showed misconceptions about the properties of similar two-dimensional shapes. Nevertheless, the media can be used to support the apperception process of the concept of similarity and congruence with teacher guidance, especially for students with low and medium abilities.
Ethnomathematics of Kluwung Weaving as Learning Material for Mathematics Elements of Geometry and Measurement Waladati Khoirun Nadifa; Rachmaniah Mirza Hariastuti; Maghfirotum Maulida; Galih Setiawan
Journal on Math and Science Educational Technology Vol. 1 No. 2 (2025): Journal on Math and Science Educational Technology
Publisher : PT. Eduresearch Mitra Inovasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61193/jmset.v1i2.79

Abstract

Ethnomathematics is a part of mathematics that bridges the abstraction of mathematical concepts with the contextualization of mathematics in culture or everyday life of society. This study aims to reveal ethnomathematics in the making of kluwung motif woven fabric in Banyuwangi as a mathematics learning material, especially in the elements of geometry and measurement. The study was conducted in a qualitative framework with an ethnographic approach, in Jambesari village, Banyuwangi which is the residence of the only woven fabric maker in Banyuwangi. This confirms that the informant in this study is only one, so data collection was carried out through observation, interviews, and documentation, were validated in the form of time triangulation. Data analysis was conducted qualitatively using the Miles & Huberman method. The research results show that there is ethnomathematics in the kluwung woven fabric motif, namely two-dimensional shapes, three-dimensional shapes, and measurement (length and time). These results support the contextualization of mathematis learning in the elements of geometry and measurement, especially in phases A and B. Furthermore, combinatorics and arithmetic concepts were also discovered. The results can be further developed as materials and media in mathematics learning according to the intended learning outcomes.
Co-Authors Devi Dwi Jayanti Doni Setya Darmawan Husnul Khotimah Lailatul Fitria Maghfirotum Maulida Nazalia Rahma Rachmaniah Mirza Hariastuti Waladati Khoirun Nadifa