<![CDATA[This study aimed to develop Smart Box media to support early literacy skills and healthy living education among first-grade elementary school students. The study employed a modified ADDIE Research and Development (R&D) model consisting of analysis, design, development, implementation, and evaluation stages. The media was validated by a media expert and subsequently tested through a one-to-one evaluation involving four first-grade elementary school students. Data were collected using media validation sheets and observation sheets. The observation instrument consisted of five aspects: students’ interest in the media, ability to use the media, ability to arrange handwashing steps, ability to recognize syllables, and ability to mention simple words. The results showed that the developed Smart Box media met the feasibility criteria based on expert validation and received positive responses from students. Most students were able to use the media independently, participate actively in learning activities, recognize syllables, arrange handwashing steps correctly, and mention simple words with minimal assistance. These findings indicate that Smart Box media is feasible, practical, and engaging for supporting both early literacy development and healthy living education among first-grade elementary school students. Therefore, Smart Box media has the potential to be used as an alternative learning medium in elementary school classrooms.]]>
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