Jaya Bishnu Pradhan
Doctorate in Mathematics Education (Ph.D)
Tribhuvan University – Mahendra Ratna Campus
Tahachal, Kathmandu, Nepal
jayabishnu.pradhan@mrc.tu.edu.np
Orcid: https://orcid.org/0000-0003-3790-5658
Lok Bahadur Basnet
Master in Education
Padmodaya Model Secondary School
Gohari, Dang, Nepal
lokbahadurbasnet@gmail.com
Orcid: https://orcid.org/0009-0009-4912-2109
Bed Raj Acharya
Doctorate in Mathematics Education (Ph.D)
Tribhuvan University
Kathmandu, Nepal
bed.acharya@cded.tu.edu.np
Orcid: http://orcid.org/0000-0002-1306-2337
Resumo
Etnomatemática é o estudo de conceitos e práticas matemáticas visto que estão inerentemente incorporados e manifestados nos objetos culturais e nas atividades diárias de várias comunidades. Este estudo investiga os sofisticados conceitos matemáticos incorporados na construção de artefatos culturais como Damaru, pela comunidade Chundara. O Damaru é um tambor bilateral produzido pela comunidade Chundara. O Damaru serve como estudo de caso para ilustrar a integração da etnomatemática e da etnomodelagem. Esta investigação destaca como os artesãos Chundara utilizam conhecimentos matemáticos implícitos no seu trabalho artesanal, que inclui princípios geométricos e físicos. Ao aplicar perspectivas êmicas (internas) e éticas (externas), o estudo estabelece uma ponte entre práticas culturais e matemática formal. O estudo revela que conceitos matemáticos como comprimento, largura, altura, área, volume e muito mais são essenciais para as atividades e práticas diárias dos Chundaras. Estes sistemas de conhecimento, derivados dos seus antepassados fora da escolaridade formal, são factuais, científicos e fundamentais para o seu trabalho e vida.
Palavras-chave: Artefatos culturais. Etnografia. Etnomodelagem. Conhecimento êmico. Conhecimento ético.
Abstract
Ethnomathematics is the study of mathematical concepts and practices as they are inherently embedded and manifested in the cultural objects and daily activities of various communities. This study investigates the sophisticated mathematical concepts embedded in the construction of cultural artefact such as Damaru, by the Chundara community. The Damaru is a two-sided drum produced by the Chundara community. The Damaru serves as a case study to illustrate the integration of ethnomathematics and ethnomodelling. This research highlights how Chundara artisans use implicit mathematical knowledge in their craftsmanship, which includes geometric and physical principles. By applying both emic (insider) and etic (outsider) perspectives, the study bridges cultural practices with formal mathematics. The study reveals that mathematical concepts such as length, breadth, height, area, volume, and more are integral to the Chundaras’ daily activities and practices. These knowledge systems, derived from their ancestors outside formal schooling, are factual, scientific, and foundational for their work and living.
Keywords: Cultural artifacts. Ethnography. Ethnomodelling. Emic knowledge. Etic knowledge.
Resumen
La etnomatemática es el estudio de conceptos y prácticas matemáticas tal como están inherentemente integrados y manifestados en los objetos culturales y las actividades diarias de diversas comunidades. Este estudio investiga los sofisticados conceptos matemáticos incorporados en la construcción de artefactos culturales como Damaru, por parte de la comunidad Chundara. El Damaru es un tambor de dos caras producido por la comunidad Chundara. El Damaru sirve como estudio de caso para ilustrar la integración de la etnomatemática y el etnomodelado. Esta investigación destaca cómo los artesanos Chundara utilizan el conocimiento matemático implícito en su artesanía, que incluye principios geométricos y físicos. Al aplicar perspectivas tanto émicas (internas) como éticas (externas), el estudio une las prácticas culturales con las matemáticas formales. El estudio revela que conceptos matemáticos como largo, ancho, altura, área, volumen y más son parte integral de las actividades y prácticas diarias de los Chundaras. Estos sistemas de conocimiento, derivados de sus antepasados fuera de la escolarización formal, son objetivos, científicos y fundamentales para su trabajo y su vida.
Palabras clave: Artefactos culturales. Etnografía. Etnomodelación. Conocimiento émico. Conocimiento ético.
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Comunidade EtnoMatemaTicas Brasis 