Development of a Digital Escape Room-Assisted E-Book in Environmental Science Courses Authors Nanda Eska Anugrah Nasution UIN Kiai Haji Ahmad Siddiq Jember DOI: https://doi.org/10.35719/mass.v5i2.210 Keywords: digital escape room, e-book, environmental science courses, higher education, biology education Abstract The use of advanced instructional technologies is essential for improving students' critical thinking skills and conceptual understanding, especially in environmental science. Digital escape room games, combined with e-books, offer an engaging and interactive learning experience that can significantly improve student outcomes in higher education settings. This study aimed to evaluate the validity and practicality of a digital escape room-assisted e-book for improving these skills among UIN KHAS Jember students. Using the ADDIE development model (Branch, 2009), the research assessed content validity and practicality through expert validation and trials. Content experts rated the e-book at 93.6% (very valid), while design experts rated it at 94.7% (very valid) for instructional media quality. In the individual trial, the e-book received a 91.9% score (very appealing), followed by a 94.1% score in the small group trial, and a 95.8% score in the field trial, both also categorized as very appealing. These results indicate that the digital escape room-assisted e-book is both highly valid and practical for use in environmental science course. Downloads pdf Published 2024-12-31 How to Cite Nasution, N. E. A. (2024). Development of a Digital Escape Room-Assisted E-Book in Environmental Science Courses. Indonesian Journal of Mathematics and Natural Science Education, 5(2), 104–121. https://doi.org/10.35719/mass.v5i2.210 More Citation Formats ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Issue Vol. 5 No. 2 (2024): Indonesian Journal of Mathematics and Natural Science Education Section Articles License Copyright (c) 2024 Nanda Eska Anugrah Nasution This work is licensed under a Creative Commons Attribution 4.0 International License.