<![CDATA[The low ability of students to solve mathematical problems is the background of this research. The aim of this research is to determine the increase in mathematical problem solving abilities of students who learn through models Problem Based Learning. The method used is the design experimental method as if experimental with shape non-equivalent control group. The subjects used were class 7D students as the experimental group and class 7J students as the control group at SMP Negeri 33 Bandung. The data collection technique uses mathematical problem solving ability test instruments using ratio and comparison material. The mathematical problem solving ability test was given twice at a time pretest and posttest. Data processing and analysis using applications Microsoft Excel 2021 and software SPSS 26. The results of the research show that the mathematical problem solving abilities of students who learn through models increase Problem Based Learning better than normal learning.]]>
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