PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS DAN SELF CONFIDENCE

Abstract

This study aimed to determine the influence of the implementation of problem-based learning models towards students mathematical communication skills and self confidence. The population of this study was all students of grade VIII of SMPN 20 Bandarlampung in academic year of 2015/2016 with total 244 students and that was distributed into eight classes. The samples of this study were students of VIII F and VIII G class that were chosen by purposive random sampling technique. The design which was used was posttest only control group design. The data of this study were obtained by mathematical communication skills test and self-confidence scale. The conclusion of this study was problem based learning influence on students' mathematical communication skills, but it wasnt influence the students self-confidence.

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model problem based learning terhadap kemampuan komunikasi matematis dan self confidence siswa. Populasi penelitian ini adalah seluruh siswa kelas VIII SMPN 20 Bandarlampung Tahun Pelajaran 2015/2016 dengan jumlah 244 siswa dan terdistribusi ke dalam delapan kelas. Sampel penelitian ini adalah siswa kelas VIII F dan VIII G yang dipilih dengan teknik purposive random sampling. Desain yang digunakan adalah posttest only control group design. Data penelitian ini diperoleh melalui tes kemampuan komunikasi matematis dan skala self confidence. Kesimpulan dari penelitian ini adalah problem based learning ber-pengaruh terhadap kemampuan komunikasi matematis siswa, namun tidak berpengaruh terhadap self confidence siswa.

Kata kunci: komunikasi matematis, problem based learning, self confidence