The development of interactive respiratory learning media at SDN Sidomulyo 1 Krian Sidoarjo is not optimal, that students tend to feel bored during the learning process. This study aimed to create a web-based interactive media using Smart Apps Creator (SAC) that is acceptable, meets standards, and is practical to use for teaching material for fifth-graders. This study used a Research and Development method with the ADDIE model, which consists of five phases: analysis, planning, development, implementation, and evaluation. The subjects of this study were 21 fifth-graders at State Elementary School Sidomulyo 1 Krian. Data were collected through validation questionnaires from media experts, subject matter experts, and feedback from both the teacher and students. Data were analyzed using descriptive techniques, including quantitative descriptive analysis. The media expert validation was 91.25%, and the subject matter expert validation achieved 92.08%, both categorized as "Very Valid." The practicability assessment from the fifth-grade teacher was 94%, while the students' practicality results was 96.14%, both categorized as "Very Practical." Therefore, it can be concluded that the web-based Smart Apps Creator (SAC) interactive Learning media developed is suitable and practical for use in the fifth-grade Natural and Social Sciences curriculum at elementary schools.
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