Improvement of Student Learning Activities and Mathematic Communication Skills with Realistic Mathematics Education (RME) Approaches in Class IV Students at SD Negeri 02 Supayang

This study aims to improve students’ learning activities and mathematical communication skills with the Realistic Mathematics Education (RME) approach for fourth grade students of SD Negeri 02 Supayang. The research is a classroom action research conducted in class IV SD Negeri 02 Supayang with 21 students. The instrument used to collect data consisted of observation sheets, documentation, and test questions. The results showed that the RME approach could increase students’ learning activities in which it reached 75.40% in the first cycle to 87.22% in the second cycle. Furthermore, students’ mathematical communication skills using RME increased from 52.38% in the first cycle to 71.43% in the second cycle.