<![CDATA[This study aims to determine the effect of the discovery learning model on students’ mathematical problem solving abilities and to determine the classical completeness of students’ mathematical problem solving abilities, namely by using the discovery learning miodel, whether it is better than ordinary learning. This study was conducted at Daya Cipta Middle School using two classes, namely class VIII-1 as an experimental class that will be given the model and class VIII-2 as a control class with ordinary learning models. The type of research used is a quasi experimental. Data collection techniques used ared are pretest and posttest questions. The results showed the both samples had a significant influence with an average pretetst score of 31.59 and a posttest score in the experimental class of 81.73 an average pretest score of 31.99 and a posttest score in the control class of 63.33. The statistical test used was the one-way anova test which showed that the discovery learning model was better than the ordinary learning model in terms of mathematical problem solving abilities and the classical completeness of students who were given the discovery learning model was better than the class given the ordinary learning model in terms of mathematical problem solving abilities.]]>
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