Mathematics Communication Junior High School Students in Solving Open-Ended Question Based on Reflective-Impulsive Cognitive Style

Abstract

Mathematics communication is one of important abilities about conveying ideas in writing and orally which measured by providing open-ended questions to solve. One of factors which influenced it is reflective-impulsive cognitive style. The purpose of this study describes the mathematics communication of a reflective and an impulsive junior high school student in solving open-ended questions. This research is a descriptive study with a qualitative approach. Data collected through test and interview. Subject was selected using purposive sampling. The results showed reflective students did written mathematics communication fluently, completely and tend to be accurate, but her oral communication tends to be influent, inaccurate and incomplete. Meanwhile, impulsive students did written communication fluently, completely but inaccurately, but her oral communication is fluent, complete, tends to be inaccurate.