<![CDATA[This study aims to develop teaching materials for bidisciplinary learning in mathematics and art in number learning for Phase A elementary school students that are valid and practical. The method used is research and development (R&D) with a 4D model. The research subjects consisted of 2 expert validators, 3 students in one-on-one trials, 6 students in small group trials, and 1 first-grade teacher. The instruments used were validation sheets and response questionnaires. The results showed that the teaching materials were categorised as very valid with an average of 97.5% and very practical based on teacher responses of 93.33% and student responses of 93.36%. Students also demonstrated enthusiasm in learning through fingerpainting activities. Thus, the developed teaching materials are deemed suitable for use in learning.]]>
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