<![CDATA[This research aimed to determine the effect of Problem Based Learning Model on physics learning outcome of students in the subject physics mulberry and its unit in X class SMA Katolik Budi Murni 3 of Medan T.P 2013/2014. The kinds of this reaserch is quasi-experimental. The population in this research is all of the students of X class SMA Katolik Budi Murni 3 of Medan which consisting of 4 classes totally 130 sample students . the cluster random sampling was done by taking 2 classes of 4 classes are randomly. The class of X-2 as experiment class and X-4 as control class that each class is 34 and 36 students. The instrument used achievement test is a multiple-choice test consist of 10 questions that have fulfilled content validity. The eksperimental class treated by using Problem Based Learning Model and control class by using convensional model. Based on t test that Ha is accepted, it means that Problem Based Learning Model has significant impact in improving student learning outcomes. Keywords : Problem Based Learning Model, Studing Result and StudentActivity.]]>
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