<![CDATA[This study aims to determine the effect of the Problem-Based Learning (PBL) model, supported by Wizer.me-based e-LKPDs, on students’ learning outcomes in the subject of temperature and heat in Year 11 at State Senior Secondary School 12, Medan. The study employed a quasi-experimental method using a pretest-posttest control group design. The sample comprised two classes selected via simple random sampling: Class XI F4 as the experimental class and Class XI F5 as the control class. The research instrument was a learning outcome test. Data were analysed using normality and homogeneity tests, a t-test, and N-Gain. The results of the study showed that the average learning outcomes of students in the experimental class increased from 42.57 to 83.60 with an N-Gain of 0.71 (high category), whilst in the control class they increased from 41.29 to 74.74 with an N-Gain of 0.56 (moderate category). The results of the hypothesis testing indicate that the Wizer.me-based e-LKPD-assisted PBL model has a significant effect on student learning outcomes.]]>
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