<![CDATA[This study employs a development research design using the ADDIE framework to create fraction teaching materials grounded in Realistic Mathematics Education (RME). It incorporates the Realistic Fraction application to enhance mathematical communication and self-confidence among MI students. The research subjects were third-grade pupils at MI in Bandung. The study utilized several assessment tools, including a content validation scale, a face validation, and a practicality scale. The study found the training materials met acceptable standards. During the restricted testing period, it was discovered that the fraction teaching materials require further adjustment, such as reducing the language. The training materials scores met the following criteria: content validity, face validity, and practicality. Expert and teacher assessments rated them as very valid, while students rated the practicality trial as very practical. These results make the instructional materials appropriate for use in experimental learning to improve third-grade students' mathematics communication abilities and self-confidence regarding fractions.]]>
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