The Effect of Problem-Based Learning Model Assisted by Vee Diagram on Students' Problem-Solving Ability

<p><em>This study aims to determine the effect of the Problem-Based Learning model assisted by vee diagrams on the problem-solving skills of class X SMA 7 Tasikmalaya students in the 2023/2024 school year on environmental change material. The research method used is a </em><em>quasi</em><em>-experiment with Posttest Only Control Group Design. The population in this study were all class X consisting of 12 classes with a total of 450 students. Sampling using purposive sampling technique, namely class X-E8 as the experimental class, class X-E12 as the positive control class, and class X-E6 as the negative control class. The instrument used is a test in the form of a description questions as many as 8 questions of problem-solving ability. The data analysis technique used was the One-Way ANOVA test and LSD (Least Significant Difference) test. Based on the results of data analysis and hypothesis testing, the value of Sig. 0.001 <0.05 means that there is an effect of Problem-Based Learning model assisted by vee diagram on students' problem-solving ability. The LSD (Least Significant Difference) test results show that the Problem-Based Learning model assisted by vee diagrams affects on students' problem-solving skills compared to the Problem-Based Learning model and the Discovery Learning model.</em></p>