Abstract

The purpose of this study was to describe the mathematical communication ability of class VIII students of SMP Islam Tunas Harapan in terms of self-confidence and cognitive style. This research is qualitative with data triangulation. The population of this study were students of class VIII SMP Islam Tunas Harapan in the 2022/2023 academic year. Determining research subjects using purposive sampling technique, so that 6 subjects were obtained, namely the categories of high self-confidence reflective, high self-confidence impulsive, moderate self-confidence reflective, moderate self-confidence impulsive, low self-confidence reflective, and low self-confidence impulsive. The results of this study show that students with high self-confidence reflective are able to master all indicators of mathematical communication ability, students with high self-confidence impulsive are only able to master three indicators of mathematical communication ability, students with moderate self-confidence reflective are able to master all indicators of mathematical communication ability, students with moderate self-confidence impulsive are only able to master two indicators of mathematical communication ability, students with low self-confidence reflective are only able to master three indicators of mathematical communication ability, and students with low self-confidence impulsive is only able to master one indicator of mathematical communication ability.