Efforts to improve mathematics problem-solving ability through problem-based learning model

Abstract

Based on interviews conducted by researchers with one of the senior mathematics teachers at the State Senior High School Bantul 1 (for simply, SMA Negeri 1 Bantul), as well as direct observations in the field by giving preliminary tests, the researchers concluded that the ability of students in SMA Negeri 1 Bantul in solving math problems was still low. This study uses a problem-based learning model with the Class Action Research (CAR) method with data analysis techniques from the results of the problem-solving ability test given at the end of each cycle. This research was conducted in class X MIPA 1 SMA Negeri 1 Bantul with 36 students. The results showed that the results of the mathematical problem-solving ability of students of class X MIPA 1 SMA Negeri 1 Bantul increased from cycle 1 to cycle II. In the first cycle, classical completeness from 72.2% increased to 94.4% in the second cycle. Based on the description above, it can be concluded that the problem-based learning (PBL) learning model can improve students' mathematical problem-solving abilities in trigonometry material for class X MIPA 1 SMA Negeri 1 Bantul in the 2021/2022 school year.