<![CDATA[One of the mathematics learning successes is that students are able to complete mathematical problem solving. Existing conditions that students are still unable to complete mathematical problem solving. Learning models combined with learning media are expected to enable students to solve mathematical problems. The purpose of this study was to determine the effect of the application of Problem Based Learning (PBL) on the material of ruang sisi datar (kubus) with the help of Lectora Inspire media on students' geometry problem solving abilities. Lectora inspire is an e-learning content development tool that is easy to use as an online learning. This research was carried out in SMPN 1 Cilimus, Kabupaten Kuningan. The research method used is quantitative method while the research design used is Posttest-only Control group design. The study population was all student class VIII and the sample used was class VIII4 as an experimental class and class VIII2 as a control class. Based on the acquisition of research data obtained the average mathematics posttest of the experimental class students was 72.75 and the posttest control class was 47.47. Student responses to the application of problem based learning learning models with an average score of 78.13, the average student response to the Lectora Inspire media was 78.7. Based on the data analysis test, it is known that tcount <ttable or 1.570 < 2.024 so it can be concluded that there is no influence of the use of Lectora Inspire media on students' geometry problem solving ability on the subject of the cube]]>
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