The Improving Mathematical Communication Ability Through Realistic Mathematical Approach Based on Toba Batak Culture

This purpose of this research to know: (1) The improving of mathematical communication ability through realistic mathematics approach based on Toba Batak culture is higher than students who are given regular learning, (2) there is no interaction between learning approach with Initial Ability of Mathematics (KAM) in improvement of students' mathematical
communication ability. This research type is quasi experiment. This research was conducted at SMP N 2 Dolok Panribuan. The population in this study is all students of class VII. Based on the results of the analysis, the research results are obtained: (1) improving of mathematical communication ability through realistic mathematics approach based on Toba Batak culture is
higher than students who are given regular learning, (2) there is no interaction between learning and student's early ability improving the ability of mathematical communication. Recommended by the teachers can use realistic mathematics approach based Batak Toba culture by presenting issues related to local culture as an alternative learning.