THE EFFECT OF PROBLEM-BASED LEARNING ON THE CRITICAL THINKING SKILL OF THE STUDENTS

This research aimed to determine the effect of the problem-based learning model on critical thinking skills in the excretion system subject. The research was quasi-experimental research by using a pretest-posttest control group design. The population of this research was all students of SMA Negeri 1 Prambanan. The research samples of this research were two classes, class XI MIPA 4 with 27 students as the control class and class XI MIPA 3 with 31 students as the experimental class implementing problem-based learning. Data were collected by using a test instrument in the form of multiple-choice questions. The data obtained were analyzed using the Independent sample T-test. The calculation results showed a significant value of 0,000 < 0,05, it can be concluded that there was a difference in the critical thinking skills between the control and experimental class.