Aplikasi Problem Based Learning Terhadap Keterampilan Berpikir Kritis Siswa SMA

Abstract

An experimental study to analyze descriptively and inferentially the differences in students’ critical thinking ability to learn physics between problem-based learning and conventional model at class XI of SMA Negeri 2 Konawe was performed. Tests and questionnaires were applied. Students of XI IPA classes were served as samples. The samples were determined through a simple random sampling technique, resulting in class XI IPA3 with 31 students as an experimental group, and class XI IPA1 with 31 students as a control group, thereby 62 out of 119 students were selected as the samples. Data were collected by administering a pre- and post-test instrument to measure students’ critical thinking ability to learn Physics. The data were analyzed by using descriptive and inferential statistics. The hypotheses were tested by using the U Mann-Whitney test and Manova analysis, in which a significance level 0.05 was used, thereby if the significance value was lower than 0.05 (sig. α = 0.05), then H0 was rejected and H1 accepted. The results of data analysis showed that (1) there was a difference in terms of critical thinking ability between the class XI IPA students of SMA Negeri 2 Konawe which learned through a problem-based learning and those who learned in a conventional model and (2) there was a difference in terms of critical thinking ability to learn Physics between the class XI IPA students of SMA Negeri 2 Konawe which learned through a problem-based learning and those who learned in a conventional model.