<![CDATA[Abstract: This research is aimed at decribing the ability of mathematical communication of students with guardian, artisan, rational, and idealist personality type in solving mathematics problems. This research was a descriptive qualitative research. The subject of this research was taken by using a purposive sampling. The subjects of this research were 8 students of the ninth grade at SMPN 1 Gondangwetan Pasuruan, consisting 2 students with guardian type personality, artisan type personality, rational type personality, and idealist type personality. The technique of collecting data in this research used interview-based task on similarity subject. The technique of validating data was conducted by using time triangulation. The result of this research showed that each type personality has difference ability of mathematical communication. The student with guardian type personality can communicate the ideas well in both written and spoken ways and process as well as reorganize information in such a way that the problem-solving ideas presented can reveal the actual problem solution. The student with artisan type personality guardian can communicate the ideas well in both written and spoken ways and process as well as reorganize information in such a way that the problem-solving ideas presented can reveal the actual problem solution. Meanwhile, the students with rational type personality can communicate the ideas in written well but they have difficulties in communicating ideas in spoken ways as well as inclination to receive information without reorganising it in such a way that the problem-solving ideas presented cannot reveal the actual problem solution. Similarly, the student with idealist type personality can communicate the ideas in written well but they have difficulties in communicating ideas in spoken ways as well as inclination to receive information without reorganising it in such a way that the problem-solving ideas presented cannot reveal the actual problem solution.Keywords: Mathematical Communication, Problem Solving, Personality Type]]>
