Ethnomodelling of Menggelek Tobu: Bridging Indigenous Mechanisms and Mathematical Formalism of Cylindrical Rotation
DOI:
https://doi.org/10.55927/gmqt4845Keywords:
Ethnomathematics, Cultural Mathematics, Cylinder Rotation, Mathematical Modelling, Mathematics EducationAbstract
This study explores mathematical concepts embedded in the traditional Malay activity known as menggelek tobu (rolling sugarcane). The research aims to identify mathematical structures inherent in this cultural practice and transform them into meaningful learning resources for mathematics education. A qualitative ethnographic approach was employed through field observation, documentation, and ethnomathematical analysis. The results reveal that the rolling sugarcane activity involves implicit mathematical concepts, including cylindrical geometry, rotational motion, and optimization of mechanical force. The sugarcane trunk can be modeled mathematically as a cylinder undergoing rolling motion, where the linear displacement is related to angular displacement through the relation s=rθ. In addition, the optimization of rolling force can be represented through frictional mechanics F=μmg. These findings indicate that local cultural practices contain embedded mathematical reasoning that can be contextualized for teaching mathematics. Integrating ethnomathematics into mathematics education may improve conceptual understanding while strengthening cultural relevance in learning
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Copyright (c) 2026 Hanifatul Rahmi, Hasnah Faizah, Mahdum, Hermandra, Elmustian (Author)
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