EFEKTIVITAS PROBLEM BASED LEARNING DITINJAU DARI KEMAMPUAN REPRESENTASI MATEMATIS DAN SELF CONCEPT

Abstract

This research was aimed to know the effectiveness of problem based learning in terms of students mathematical representation ability, percentage of student who reach the mastery learning, and self concept. The population of this research was all students of grade 8^th of SMPN 25 Bandarlampung in academic year of 2015/2016 which was distributed into 9 classes. The samples of this research were students of VIIIA and VIIIC class who were taken by purposive sampling technique. The design of this research was posttest only control group design. The research data were obtained by mathematical representation ability test and self concept scale. Based on the result of data analysis, problem based learning wasnt effective in terms of self concept and percentage of students who reach the mastery learning but it was effective in terms of mathematical representation ability.

Penelitian ini bertujuan untuk mengetahui efektivitas problem based learning ditinjau dari kemampuan representasi matematis, persentase tuntas belajar, dan self concept siswa. Populasi penelitian ini adalah seluruh siswa kelas VIII SMPN 25 Bandarlampung tahun pelajaran 2015/2016 yang terdistribusi dalam sembilan kelas. Sampel penelitian ini adalah siswa kelas VIIIA dan VIIIC yang ditentukan dengan teknik purposive sampling. Desain yang digunakan adalah posttest only control group design. Data penelitian diperoleh melalui tes kemampuan representasi matematis dan skala self concept. Berdasarkan hasil analisis data, problem based learning tidak efektif ditinjau dari self concept dan persentase tuntas belajar siswa tetapi efektif ditinjau dari kemampuan representasi matematis siswa.

Kata kunci: problem based learning, representasi matematis, self concept