Etnomathematics on Equipment of Kebokeboan Alasmalang Traditional Ceremony

Abstract

—Ethnomatematics is a habit and customs in a community group and there is a mathematical concept without being realized by the community. This research was conducted in Alasmalang village, especially Krajan Singojuruh Banyuwangi hamlet. The purpose of this study was described about ethnomatematics of the Traditional Ceremony of Kebo-Keboan Alasmalang with the subject matter of congruence and similarity. This research was belonging of qualitative research with an ethnographic approach. The object of this research is all the equipment that must be available for the implementation of the ceremony. Data sources in this research are the head of Kebo-Keboan Traditional Institue and buldrah. There are 3 methods were used to collecting data, observation, documentation and interviews. The results of data’s collection will be analyzed and presented descriptively. The results of this study showed that there are mathematical concepts in the form of point and line, angle, two dimentional figure, congruence and similarity, three dimentional figure, and reflection