Kemampuan Representasi Matematis Siswa melalui Pembelajaran Berbasis Masalah di Sekolah Menengah Atas

The purposes of this study are: to assess the students' mathematical representation in solving problems after being given a problem-based learning model; to assess the students' mathematical representation associated with the conceptual understanding; and to assess the students' mathematical representation associated with the procedural understanding. This is a quantitative research. The approach employed in this study is the equivalent time samples design. The population of this study is all twelve grade students of SMA Santu Petrus Pontianak in the academic year 2014/2015. The randomly selected samples are class XII-IA3 students. The data obtained from both pretest and post-test were statistically and descriptively analyzed. The results are: the students' mathematical representation has increased significantly after receiving the problem-based learning model, the students are able to organize their knowledge to perform translations one representation form to the other representation form. The association between the mathematical representation and the conceptual understanding and the procedural understanding after the problem-based learning is considered fair