<![CDATA[Students' skills in solving problems in mathematics have an impact on learning outcomes. Mathematical problems are closely related to students' daily lives. These problems can be resolved through discussion and collaboration. A learning community is a learning model that facilitates problem-solving in a learning community. In society, students play an active role by changing knowledge in problem-solving. The purpose of this research is to know the effect of mathematical problem-solving ability in class with a Learning Community. The method used is a quasi-experimental design with a nonequivalent control group design. The results of this study indicate an increase in the mathematical problem-solving ability of the experimental class with a percentage of N-Gain in the experimental class of 65. 84% are categorized as quite effective. The experimental class and the control class showed differences in mathematical problem-solving abilities which were indicated by a significance level of < 0.05, this indicates that there is an influence of the learning community on increasing mathematical problem-solving abilities. The results of the research in the experimental class can be concluded that the learning community has an influence on improving students' ability to solve mathematical problems.]]>
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