Analisis Kemampuan Representasi Matematis Siswa pada Materi Lingkaran di MTsN 2 Aceh Besar

Abstract

This research is motivated by the importance of representational abilities in learning mathematics, so it is necessary for every student to be able to organize their ideas when solving problems. The purpose of this study is to determine the ability of students' mathematical representation in the circle material. This study uses a descriptive qualitative approach. The research subjects were 31 students of class VIII-1 MTsN 2 Aceh Besar. Data was collected through tests and interviews. The results showed that the level of students' mathematical representation ability was included in the very high category for visual representation, high category for symbolic representation, and medium category for verbal representation. High group students fulfill all aspects of representation, namely visual, symbolic, and verbal, medium group students meet two representation aspects, namely visual and symbolic, and low group students only meet one aspect of representation, namely visual. Several factors affect the level of representation ability, namely the difficulty of students making geometric drawings, mathematical models, and conveying mathematical ideas with words. The causes of student errors in solving problems are not paying close attention to the questions, not repeating the previous material, weak in analyzing problems, lack of thoroughness and experience in working on representational problems, so that their representational abilities do not develop. Based on the results of the study, it is hoped that it can be a teacher reference in improving students' representational abilities by training them to work on representational problems, so that students are accustomed to solving problems using various mathematical representations.