Abstract

Mathematical communication ability needs to be possessed by students because it is an essential ability recommended by NCTM. This research aims to describe students' mathematical communication ability in terms of self-confidence in Treffinger learning assisted by Schoology. This type of research is a descriptive study with a qualitative approach. The subjects in this study were students of class X AKL 2 in the 2020/2021 academic year which consisted of 12 students. The taking of research subjects in this study was determined through the purposive sampling technique. The results showed that the achievement of students' mathematical communication ability in terms of self-confidence in Schoology assisted Treffinger learning was very diverse. Mathematical communication ability in terms of self-confidence shows that students with high self-confidence can understand and master the three indicators, students with moderate self-confidence do not master one indicator, while students with low self-confidence have not yet understood and mastered the three indicators.