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All Journal JPPM (JURNAL PENELITIAN DAN PEMBELAJARAN MATEMATIKA) Wilangan : Jurnal Inovasi dan Riset Pendidikan Matematika
Alamsyah, Trian Pamungkas
Universitas Sultan Ageng Tirtayasa
Education Mathematics

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Journal : Wilangan : Jurnal Inovasi dan Riset Pendidikan Matematika

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MODULO CONCEPT IN DETERMINING RICE PLANTING TIME IN KASEPUHAN CISUNGSANG: AN ETHNOMATHEMATICS STUDY Alamsyah, Trian Pamungkas; Nirmalasari, Dinar; Rafianti, Isna
Wilangan: Jurnal Inovasi dan Riset Pendidikan Matematika Vol 6, No 3 (2025): September 2025
Publisher : FKIP Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wjirpm.v6i3.35013

Abstract

This study aims to examine the application of the mathematical concept of modulo in determining the rice planting period among the indigenous people of Kasepuhan Cisungsang. Using an ethnomathematical and qualitative approach, the study found that the community classifies dates in the Hijri calendar based on the remainder when divided by four (modulo 4). Dates with remainders of 1, 2, and 3 are considered auspicious for planting, while those with a remainder of 0 (multiples of 4) are avoided due to cultural beliefs. Although this practice is not formally recognized as mathematics, it demonstrates a mathematical reasoning embedded within local traditions. The findings emphasize that ethnomathematics serves as a bridge between formal mathematical concepts and local culture and can enhance contextual mathematics learning in schools.
Co-Authors Alawiyah, Tuti Nirmalasari, Dinar Pamungkas, Aan Subhan Rafianti, Isna