Mathematics communications skill of student in senior high school on introvert

Introvert personality is a characteristic of students stimulates thought and behavior. For this reason, introvert personality can influence mathematics learning and students' mathematics communication. Through mathematics communication, students can organize the ability to think both verbally and in writing. This study aimed to analyze the mathematical communication skills of students who had an introvert personality. The research method used was descriptive qualitative with 20 subjects in the eleventh grade of a national senior high school in Sukoharjo. The data was collected through questionnaires, tests, and interviews. The results of this study are the students who had an introvert personality type who was able to analyze and write information obtained by mathematical symbols was 90 % in the high category. The indicator of mathematics communication capabilities that are expressing ideas, mathematical situations or with pictures, graphs, and algebraic forms, which have a percentage of 24.5% in the low category.