<![CDATA[This study aims to determine the effect of the Project Based Learning (PjBL) model on students' creativity and critical thinking skills. The study was conducted at Universitas PGRI Yogyakarta using a quantitative approach through a quasi-experimental method. The research design used was a posttest-only control group design. The research sample consisted of two classes, namely the experimental class that implemented the Project Based Learning model and the control class that used conventional learning methods. The research instrument was a multiple-choice test whose validity and reliability had been tested. The results showed that the average posttest scores for creativity and critical thinking skills in the experimental class were higher than those in the control class. The t-test results showed a value of (t_{count} = 3.027) and (t_{table} = 1.666) at a significance level of 0.05, so that (t_{count} > t_{table}). This indicates that the Project Based Learning model has a significant effect on students' creativity and critical thinking skills. In addition, the application of the PjBL model can also increase students' active participation, analytical skills, evaluation, and problem-solving in geohistory learning.]]>
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