<![CDATA[This study aims to improve students' understanding ability in solving fractional story problems through the application of the Realistic Mathematics Education (RME) learning model in grade IV students of SD Negeri 101944 Deli Muda. The problems in this study stem from the low understanding of students on fractional story problems and the learning method which is still conventional and teacher-centered. This study is a Classroom Action Research (CAR) using the Kemmis and McTaggart model which consists of two cycles. Each cycle consists of planning, implementation, observation, and reflection stages. The instruments used include test sheets, observation, and documentation. The results of the study showed an increase in students' understanding ability from an initial average value of 50 with a completion rate of only 30.77% (4 out of 13 students) to an average of 80 with a completion rate of 80% in cycle II. This increase shows that the RME model is effective in helping students understand fractional story problems through real and meaningful contextual learning. Thus, the application of the RME model can be an alternative solution in improving students' understanding of mathematical concepts, especially in fractional number material.]]>
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