<![CDATA[This study aimed to determine the effect of the Discovery Learning model on the critical thinking skills of tenth-grade students at SMA Swasta Bandung Percut Sei Tuan. The study was motivated by the low level of students' critical thinking skills, as indicated by the low learning achievement and the teacher-centered learning process. The Discovery Learning model was chosen because it provides opportunities for students to actively discover concepts, analyze problems, process information, and draw conclusions independently. This research employed a quantitative approach using a quasi-experimental method with a pretest-posttest control group design. The population consisted of 99 tenth-grade students of SMA Swasta Bandung Percut Sei Tuan. The sample included Class X-1 as the experimental group and Class X-2 as the control group. The research instrument was a critical thinking skills test administered before and after the treatment. Data were analyzed using the Shapiro-Wilk normality test, Levene’s homogeneity test, and the Mann-Whitney U test. The results showed that the Asymp. Sig. (2-tailed) value was 0.000 < 0.05, indicating that the Discovery Learning model had a significant effect on students' critical thinking skills. Therefore, the Discovery Learning model is effective in improving students’ critical thinking skills in Economics learning.]]>
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