The Association for the Advancement of Computing in Education (AACE) is an international, non-profit educational organization. The Association's purpose is to advance the knowledge, theory, and quality of teaching and learning at all levels with information technology. "EdMedia 2015: World Conference on Educational Media & Technology" was organized by AACE in Montreal, Quebec, June 22-24, 2015. These proceedings contain 291 papers. The following nine award papers are included: (1) Dialogue Design System to Share Information and Construct Knowledge (Paivi Aarreniemi-Jokipelto and Yukari Makino); (2) Applying an Action Research Model to Learning (Re)Design (Mitchell Parkes, Peter Fletcher, and Sarah Stein); (3) Collaborative Learning Through Drawing on iPads (Michael Spitzer and Martin Ebner); (4) Examining the Effects of Employing Various Multimedia Tools in a Flipped Classroom on Pre-Service Teachers' Self Efficacy and Knowledge Application Abilities (Aileen Watts and Mohamed Ibrahim); (5) Keeping It Real: Factors that Impact Social Presence, Feelings of Isolation, and Interactivity in Online Learning (Franco Taverna, Lena Paulo Kushnir, Kenneth Berry, and Laurie Harrison); (6) Gamification of an Information Security Management Course (John Vail); (7) Technology Integration in Postsecondary Education: A Summary of Findings of a Series of Meta-Analytical Research (Eugene Borokhovski, Robert M. Bernard, Rana Tamim, and Richard F. Schmid); (8) Learning Analytics: Principles and Constraints (Mohammad Khalil and Martin Ebner); and (9) Challenges and opportunities in employing game development in computer science classes (Oswald Comber and Renate Motschnig). [For the 2014 proceedings, see ED602986.]