Thinking Ability and Student Learning Outcomes in the Material of Electrolyte and Non Electrolyte Solutions at Madrasah Aliyah Negeri

This research was conducted to describe the application of problem-based learning models to critical thinking skills and student learning outcomes after the material on electrolyte and non-electrolyte solutions in Class X IPA MAN 1 Palu City. This type of quasi-experimental research or quasi-experimental, with a quantitative descriptive research design using the One group pretest posttest design. The sampling technique used is total sampling or saturated samples. Analysis of the results of students' critical thinking skills as measured by 3 (three) indicators, namely interpretation, analysis, and evaluation. The value of each indicator in experimental class 1 was interpretation 83.33%, analysis 75.54%, and evaluation 79.35%, while in experimental class II interpretation 83.33%, analysis 83.33%, and evaluation 83, 33%. Based on the data analysis with N-gain, it was obtained that the experimental class 1 was 0.59 and the experimental class 2 was 0.60, which means that all are in the medium category. This shows that the application of problem-based learning is very effective in improving critical thinking skills and student learning outcomes. in class X electrolyte and non-electrolyte solutions MAN 1 Palu City.