<![CDATA[This research aims to develop fraction teaching materials using a coastal-based Realistic Mathematics Education (RME) approach for fourth-grade elementary school students. This study used a Research and Development (R&D) methodology with the ADDIE model, encompassing the stages of Analysis, Design, Development, Implementation, and Evaluation. The research was conducted at SDN 105 Bengkulu City. The research subjects were students from class IVA as the control group and class IVB as the experimental group at SDN 105 Bengkulu City. Data collection techniques included needs questionnaires, response questionnaires, and tests. Based on validation by subject matter experts, language experts, and design experts, the developed teaching materials were deemed valid and suitable for use. Student responses were categorized as good. Data analysis indicated that the data were normal and homogeneous. The field test results of the teaching materials, conducted through pretests and posttests, showed an average gain score of 65%, indicating the materials' effectiveness. Based on the obtained results, it can be concluded that the teaching materials are feasible and can be used in the learning process.]]>
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