The Effect of Problem Based Learning Model Assisted by E-LKPD Based on WIZER.ME Website on Mathematical Problem Solving Ability

This study was motivated by the low mathematical problem-solving ability of students due to the lack of effective learning models being implemented. One alternative that can be used is the Problem-Based Learning (PBL) model combined with an e-LKPD based on the Wizer.me website. This study aims to determine the effect of implementing PBL assisted by e-LKPD Wizer.me on students’ mathematical problem-solving abilities. The research instrument was a mathematical problem-solving ability test, and the data were analyzed using descriptive statistics, normality test, homogeneity test, independent sample t-test, and N-gain. The results showed that the mean pretest–posttest scores of the experimental class were 47.91–83.32, while the control class scored 42.82–77.15. The N-gain of the experimental class was 0.6815 and the control class 0.5891 (both in the medium category). The t-test indicated a significant difference (p < 0.05), with greater improvement in the experimental class. These findings confirm that PBL assisted by e-LKPD Wizer.me is effective in improving students’ mathematical problem-solving abilities. Practically, this model can be implemented by teachers to enhance student engagement, learning independence, and achievement, particularly in mathematics subjects that require problem-solving skills.