Abstract:
The new innovation of education is an important point of Pendidikan Matematika Realistik
Indonesia (PMRI), Indonesian version of Realistic Mathematics Education (RME). Using the
theory of R M E we conducted design research with the aims to build upon students' reasoning and
reach the mathematical goals of symmetry. This research aims to produce a learning process and to
understand the concept of symmetry. Design research was chosen to get the goal of this research.
Three steps o f design research were followed namely preliminary design, teaching experiment and
retrospective analysis. This research was conducted with 22 students in M I N 2 Palembang. The
result of this research is students' understanding of the symmetry concept using math traditional
dance.
