Özet:

TRole of mathematical communication in learning is needed. Mathematical communication could carry conceptual understanding, problem solving, and mathematics reasoning. This research aims to explain communication process of Junior High School students in solving problems based on APOS framework theory. In solving mathematics problem at school, it emphasizes more on outcome than process without considering students’ reasoning process. To express mathematics ideas, the learning seems to emphasize on written than spoken. To solve that problem, there is a need of mathematical communication process connection to students’ reasoning in solving problems. The reasoning skill of the students was reviewed based on APOS Theory. This research is a qualitative research. The instruments of collecting data were problem solving task and interview. The results showed that there were 10 students performing mathematical communication process by having pseudo drawing communication and 20 students by having pseudo mathematical expression communication criteria.

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