<![CDATA[This study aims to analyze the effect of Problem Based Learning (PBL) assisted by Pear Deck on students' critical thinking skills, as well as the learning implementation process and student responses. This study uses a quantitative descriptive method with a one-group pretest posttest design. The subjects of the study were students of class VII-B SMP Negeri 4 Surabaya in the 2025/2026 academic year. The instruments used were learning implementation observation sheets, critical thinking skills tests, and student response questionnaires. Data collection techniques were carried out through observation, tests, and questionnaires, then analyzed using N-gain calculations to see the increase in critical thinking skills, average analysis on the Guttman scale, and mode analysis on the Likert scale. The results showed that learning with the PBL model was implemented very well with a percentage of 100%. Students' critical thinking skills increased with an average N-gain value of 0.77 which is included in the high category. In addition, students gave a positive response to the PBL model assisted by pear deck. Based on these results, it can be concluded that the application of the Problem Based Learning (PBL) model assisted by Pear Deck can improve students' critical thinking skills.]]>
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