<![CDATA[Student literacy in science learning plays an important role and demands active participation in asking questions and expressing opinions in class. However, in reality, students' understanding of the material remains relatively low, so few students achieve science scores above the minimum competency criteria (KKM). This study aims to improve student learning outcomes by developing e-book media, while simultaneously describing the media design, assessing its validity through expert assessments, examining student responses, and testing its effectiveness in science learning. The development model used is ADDIE with research subjects of grade V Elementary School students. Data were collected through questionnaires and tests, and analyzed using quantitative descriptive and non-parametric statistical methods, including the Wilcoxon test. The results of the study showed that the developed e-book media aligned with the stages of the ADDIE model, demonstrated high validity based on assessments by content, learning design, and media experts, and received very positive responses from students. In addition, the use of e-book media was shown to be effective in improving student learning outcomes, as indicated by a significant difference between conditions before and after its use. The implications of this research confirm that e-books can be an innovative alternative for improving the quality of science learning, particularly by strengthening literacy and active student involvement.]]>
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