Decomposition of Numbers: An Ethnomathematics Perspective in Sundanese Language Systems for Elementary School Mathematics Learning
DOI:
https://doi.org/10.35763/aiem26.4945Keywords:
Decomposition of numbers, Ethnomathematics, Culture, Language systems, Indigenous mathematicsAbstract
The current study aimed at describing the form of ethnomathematics in the language system used by the Sundanese people. The study employed phenomenographic and ethnomethodological through a realist ethnographic research design. Data collection techniques were used, including participatory observation and in-depth interviews. Meanwhile, the study employed content analysis, triangulation, and pattern determination to analyse the data obtained. The results indicate that the decomposition of numbers used by the community is a multiple of 25 and contains unique numbers peculiar to numbers 21 to 29. Therefore, the community’s concept of decoding numbers is relevant to be adopted into elementary school mathematics learning.
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