THE EFFECT OF PROBLEM SOLVING LEARNING MODELS ON IMPROVING STUDENTS' MATHEMATICAL PROBLEM-SOLVING SKILLS

Abstract

Mathematical problem-solving ability is a crucial competency that students must develop to tackle non-routine questions and real-life problems. However, observations show that many students still struggle to devise appropriate problem-solving strategies, particularly on the topic of the Pythagorean Theorem. This study aims to investigate the effect of the problem solving learning model on improving students’ mathematical problem-solving abilities. The research employed a quantitative approach with a quasi-experimental method using a nonequivalent control group design. The sample consisted of two eighth-grade classes at SMP Nurul Jadid: an experimental class taught using the problem solving model and a control class taught using a conventional method. Data were collected through essay tests (pretest and posttest) and analyzed using normality, homogeneity, and Mann-Whitney U hypothesis tests. The results showed a significant difference between the experimental and control classes, with an Asymp. Sig. (2-tailed) value of 0.003 < 0.05. This indicates that the problem solving model significantly improves students' problem-solving abilities. The findings suggest that students’ active engagement in understanding problems, planning strategies, and solving tasks independently plays an important role in enhancing their skills. Therefore, the problem solving learning model can be considered an effective alternative in mathematics instruction.