PENGARUH PENDEKATAN PEMBELAJARAN BERBASIS MASALAH TERHADAP PENINGKATAN KEMAMPUAN KOMUNIKASI DAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS IX SMP NEGERI KECAMATAN SUNGAI PENUH

This research was started from students’ low communication ability and  mathematical problem solving at grade IX SMP Negeri Kecamatan Sungai Penuh. To solve the problems, thus the writer applied problem-based learning approach. By using  problem solving activity the students was guided to understand  the concept and to find the characteristics of the subject material, so that the students would be trained to propose  their mathematical idea and  to develop  problem solving ability.  The aim of this research was to know the effect of problem-based approach toward enhancement of communication ability and students’ mathematical problem solving at grade IX SMP Negeri Kecamatan Sungai Penuh. This research was conducted based on the quasi experimental research.. To get the sample, the writer used random sampling technique. T-Test and U-Test was used to analyze the data. Based on the result of the data analysis, the writer got some conclusions that was the enhancement of communication ability and  students’ mathematical problem solving that using problem-based approach was better than using conventional teaching approach.