Abstract
This investigation stems from the observed low problem-solving skills among students as indicated in prior research. The primary objective is to evaluate the impact of employing case-based learning on students’ problem-solving aptitude concerning buffer solutions. Carried out during April-May 2023, the study involved 11th-grade students at a public high school in Jakarta, Indonesia. Employing a quasi-experimental design, two classes were chosen as samples and randomly assigned roles via the flipping coin method: one as the experimental group (11 MIPA-1) and the other as the control group (11 MIPA-4), each comprising 36 students. A problem-solving assessment using an essay test featuring nine questions was administered, with the data analyzed through t-tests. The findings revealed a positive correlation between case-based learning and enhanced problem-solving skills among students in the realm of buffer solutions. In essence, the implementation of case-based learning proved effective in bolstering students’ problem-solving capabilities. Consequently, educators are encouraged to integrate the case-based learning approach to elevate students’ problem-solving proficiency across various subjects.
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