<![CDATA[One of the mathematics learning materials in class VIII, namely the system of linear equations in two variables, does not meet learning standards. One of the causes of students' critical thinking skills not being optimal is the lack of students' desire to ask questions. From the results of the pretest given by researchers to students, it appears that there are several errors in the system of linear equations in two variables equation material, namely that students are not able to model problems in mathematical form, students are also less capable. cannot fully apply the system of linear equations in two variables method. This research aims to develop an e-worksheet based on Problem Based Learning (PBL) to enhance students' critical thinking skills. Based on the validity test, e- worksheet with a valid PBL model is used for learning with an average material score of 4.53 and an average media score of 3.808. E-worksheets with the PBL model are said to be practical to use in the learning process based on an average student response of 4.134.]]>
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