Advancements in educational technology have increased demand for innovative digital learning materials that enhance conceptual understanding and foster students' moral reasoning. This study aimed to develop a "Story E-Book" for the Akidah Akhlak (Islamic Creed and Ethics) subject, specifically addressing stinginess and ingratitude for blessings, to improve the moral reasoning of fourth-grade students at a Madrasah Ibtidaiyah (Islamic elementary school). The study employed the Research and Development (R&D) method using the ADDIE model, comprising analysis, design, development, implementation, and evaluation. Product feasibility was validated by subject-matter, media, and instructional experts, while its effectiveness was tested using a one-group pretest-posttest design with 17 students, employing instruments based on moral reasoning indicators. Data were analyzed descriptively and through the N-Gain test. The results indicate that the Story E-Book was rated highly feasible by experts and effective in enhancing students' moral reasoning, demonstrating a high level of improvement. These findings suggest that integrating digital storytelling, interactive multimedia, and reflective activities can create a more meaningful learning experience while supporting character development within Akidah Akhlak instruction
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