<![CDATA[This study aims to determine the effect model of Problem Based Learning (PBL) aided virtual media to the mastery of the concepts of physics students SMK 1 Lingsar Academic Year 2015/2016. This study is a quasi-experimental design with Nonequivalent Control Group Design. The study population all students of class X SMK 1 Lingsar and research sample class X-1 and X MM MM-3 were selected by purposive sampling. Data analysis using polled variance t test. The results showed that the model PBL-aided virtual media influence on students' mastery of concepts of physics. Judging from the average value, penguasaam concepts of physics experimental class is higher than the control class. N-gain first test showed that an increase in the value of the mastery of the concept of the experimental class to the theory and calculation.ÃÂ N-gain second Test results show that the experimental group was higher than the control class in each sub material unless the material collision]]>
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