EFEKTIVITAS PEMBELAJARAN DISCOVERY DITINJAU DARI KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DAN SELF CONFIDENCE

This quasi experimental research aimed to know the effectiveness of discovery learning model viewed by students mathematical problem solving skill, percentage of students who reach mastery learning, and self confidence. The population of this research was all students of grade 8th of SMPN 8 Bandarlampung in academic year of 2015/2016 that was distributed into 13 classes and two classes were selected to be samples by purposive sampling technique. The result of data analysis showed that discovery learning model was not effective viewed by students mathematical problem solving skill and percentage of students who reach mastery learning, but it was effective viewed by students self confidence.Penelitian eksperimental semu ini bertujuan untuk mengetahui efektivitas model pembelajaran discovery ditinjau dari kemampuan pemecahan masalah matematis, persentase tuntas belajar, dan self confidence siswa. Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 8 Bandarlampung tahun pelajaran 2015/2016 yang terdistribusi dalam 13 kelas dan 2 kelas sebagai sampel melalui teknik purposive sampling. Hasil analisis data menunjukkan bahwa model pembelajaran discovery tidak efektif ditinjau dari kemampuan pemecahan masalah matematis dan persentase tuntas belajar siswa, tetapi efektif ditinjau dari self confidence siswa.Kata kunci: discovery, pemecahan masalah matematis, self confidenc