The model of etnomathematics for high schools based on the dancers position movement of Beskalan Putri Malang dance

The purpose of this paper is to discover the ethnomathematical potential through the exploration of mathematical concepts in the dancers position movement. It’s executed as an effort to answer the challenges of PISA 2018 and present a contextual mathematics learning resource in corresponding with the Indonesian government policy on learning during the Covid-19 pandemic. One of the traditional dances that can be used as an ethnomatematic potential is the Beskalan Putri Malang dance. This dance can be explored based on the movement of dancers position. Then, this model can present a real experience of abstract mathematical concepts. Furthermore, this paper presents several developments based on the exploration of mathematical concepts in Chacarera dance. The mathematical concepts contained in the dance are only limited to the two dimensional spaces, while in this paper are advanced geometry. The qualitative research with a case study approach is used in this paper. The research data are obtained through interviews, documentations, and field notes. Data analysis is carried out through the following steps: 1) planning an exploration of mathematical concepts in the Beskalan Putri Malang dance, 2) sketching the movement of choreography performed by dancers, 3) generating ideas when connecting from one dance movement to another, 4) determining mathematical concepts based on the sketches that have been made, 5) verifying the suitability of mathematical concepts with the understanding of the concepts, and 6) evaluating and reviewing the results of exploration carried out. The results shows that the mathematical concepts included in the Beskalan Putri Malang dance are geometric transformations that contain the concept of translation, rotation, reflection, dilation, and composition of transformation, so that it can be a source of contextual mathematics learning for high school students. Thus, further research is needed to see how students think about building mathematical connections through the exploration of mathematical concepts in The Beskalan Putri Malang dance