Geometry From Lambitu tribe Etnomatematics

Abstract

The Lambitu tribe has a traditional house as a cultural heritage of ancestors since 1620 M. The traditional house is uma lengge and uma jompa. The existence of this traditional house is very important for the Lambitu tribe community, which functions as a residence as well as a granary. This traditional house is already very well known among the wider community as well as being a tourist destination. The community do not realize that this traditional form of home has mathematical values, which should be used as a source of learning mathematics for students in the learning process at school. Therefore, the purpose of this study was to identify the ethnomatematics form of lengge and jompa traditional houses. The results showed that uma lengge and uma jompa had geometric shapes such as two-dimensional and three-dimensional shapes. The two-dimensional shapes like square, trapezium, isosceles triangle, right triangle, and rectangles, while the three-dimensional shapes consisted of isosceles trapezium, cubes and rectangular prism. Based on the results of this study, it is important to be used as a reference for teachers and students a s well a s teaching materials that are contextual and contain local wisdom local culture.