Penerapan Model Problem Based Learning (Pbl) untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa Kelas X2 SMA Negeri 1 Tanah Merah

Abstract

This research is a class action research that aims to improve thelearning process and to improve the student\u27s mathematical problem solving ability byapplying Problem Based Learning (PBL). The subjects of this research are the studentof class X2 Senior High School 1 Tanah merah at first semester of academic years2015/2016, which amounts to 29 students. This research consists of two cycles, eachcycle consists of four stages: planning, implementation, observation, and reflection.Data collected through observation and student\u27s mathematical problem solving abilitytest. Data analysis is done by observation data analysis and student\u27s mathematicalproblem solving ability data analysis. The action is successful if the scores of teacher\u27sactivities and student\u27s activities increase in every meeting, improve the student\u27smathematical problem solving ability every cycle and improve the classical\u27smathematical problem solving ability. The result of observation show teacher andstudents activities are improve better than before in every meeting. Based on dataanalisys of student\u27s mathematical problem solving ability test show the average N-gainof student\u27s mathematical problem solving ability in first cycle has improve 0,26, itsmean the student\u27s mathematical problem solving ability in low classification and insecond cycle the average N-gain of student\u27s mathematical problem solving ability hasimprove 0,39, its mean the student\u27s mathematical problem solving ability in mediumclassification. The average score of classical\u27s mathematical problem solving abilityhas improve 31,46 in first cycle than beginning test and the average score of classical\u27smathematical problem solving ability has improve 6,15 in second cycle than first cycle.The result of this research showed that Problem Based Learning improve the learningprocess and increase the the student\u27s mathematical problem solving ability of class X2Senior High School 1 Tanah merah at first semester of academic years 2015/2016