<![CDATA[Health education in Physical Education classes for 4th-grade students at SDN 38 Cakranegara is still conducted conventionally, as teachers rely solely on textbooks and whiteboards without incorporating technology based media innovations. This condition leaves students feeling bored, unfocused, and unenthusiastic during the learning process, resulting in a relatively low understanding of health maintenance regarding communicable and non-communicable diseases. To address this issue, the study aims to develop an e-booklet for communicable and non-communicable disease health maintenance in fourth-grade students at SDN 38 Cakranegara, and to evaluate validity and practicality of e-booklet. Employing the 4D Research and Development modelcomprising define, design, develop, and disseminate. The research involved 17 fourth-grade students and 2 teachers as study subjects. Data were collected using observation sheets, interviews, comprehension tests, and questionnaires. The evaluation results demonstrated excellent validity, with media experts scoring 91.35% and material experts scoring 96.15%, both falling into the highly valid category. Practicality assessments also yielded strong results: student response scores were 95% in the small-scale trial and 97.01% in the large-scale trial, while teacher response scores reached 96.43% and 98.21%, respectively. Thus, the developed e-booklet is declared highly valid, highly practical, and thoroughly suitable for teaching health maintenance against communicable and non-communicable diseases.]]>
