LEARNING TRAJECTORY OF GEOMETRY TRANSFORMATION BASED ON ETHNOMATEMATICS OF TRADITIONAL BALINESE HOUSES

Various studies show that Indonesian students' mathematics literacy is very low. The low level of mathematics literacy is influenced by many factors including the fact that mathematics learning does not relate to culture. The term used to relate mathematics to culture is called Ethnomatematics. The purpose of this study is to determine the learning trajectory of geometrical transformation based on Ethnomatematics of Traditional Balinese Houses that can improve mathematical literacy. This type of research used is a design research type validation study consisting of 3 phases, namely: (1) preparation of experiments, (2) experiments, and (3) retrospective analysis. The study was conducted of Laboratory Undiksha Junior High School. The data of this study were collected by observation, interviews, and tests. Furthermore, the data were analyzed descriptively. The results showed that the learning trajectory of geometry transformation begins with the giving of problems, phenomena, patterns, pictures, which are related to Ethnomatematics of Traditional Balinese Houses. Furthermore, students conduct investigations individually or in pairs related to mathematical ideas that exist in Ethnomatematics. Through discussion, students construct mathematical knowledge. Another result is that students become more enthusiastic in learning, and students' abilities in solving mathematics literacy problems become better.