PENGEMBANGAN E-ENSIKLOPEDIA KERAGAMAN BUDAYA UNTUK MENUMBUHKAN SIKAP NASIONALISME DAN MOTIVASI BELAJAR PENDIDIKAN PANCASILA MURID KELAS V MADRASAH IBTIDAIYAHNIM.: 24204081006Wahyu IrawatiauthorBased on the observation results, this study was motivated by the limited use of digital learning media capable of presenting the topic of Indonesia's Cultural Diversity in an engaging manner, which has contributed to students' low levels of nationalism and learning motivation in the Pancasila Education subject. This study aims to develop an EEncyclopedia of Cultural Diversity, determine the feasibility of the developed media, and analyze its effectiveness in fostering nationalism and enhancing the learning motivation of fifth-grade students at Madrasah Ibtidaiyah. The research employed a Research and Development (R&D) approach using the ADDIE model, which consists of the Analysis, Design, Development, Implementation, and Evaluation stages, combined with a quasi-experimental design. The product trial was conducted at MI Al Huda Karangnongko, involving 22 students in the experimental class and 19 students in the control class. Data were collected through questionnaires, observations, interviews, and documentation. The research instruments were tested for validity, reliability, Confirmatory Factor Analysis (CFA), normality, and homogeneity. Data were analyzed using the Paired Samples t-test, Independent Samples t-test, and Ngain analysis. The results of the study indicate that the Cultural Diversity E-Encyclopedia was successfully developed as a digital learning medium based on a flipbook format, incorporating learning materials, images, videos, assessments, and supporting learning features. Expert validation showed that the media met the criteria of being highly feasible, with validation scores of 82% from the material expert, 92% from the media expert, 83% from the language expert, and 91% from the teacher assessment. The effectiveness test revealed that the use of the Cultural Diversity E-Encyclopedia significantly improved students’ nationalism attitudes (t = 4.205, p < .001, Cohen’s d = 1.317), with an N-Gain score of 0.6096 (60.96%), which falls into the moderate category with a moderately effective level of effectiveness. A significant improvement was also found in students’ learning motivation (t = 5.634, p < .001, Cohen’s d = 1.764), with an N-Gain score of 0.5881 (58.81%), which is also categorized as moderate with a moderately effective level of effectiveness. Based on these findings, the Cultural Diversity E-Encyclopedia is considered feasible and effective for use as a learning medium in Pancasila Education to foster nationalism attitudes and enhance the learning motivation of fifth-grade students in Madrasah Ibtidaiyah.371.33 Media Pembelajaran2026-07-07UIN SUNAN KALIJAGA YOGYAKARTA;FAKULTAS ILMU TARBIYAH DAN KEGURUANThesis