The present paper below is an original authors’ working draft version that led to an article publication. A reference in APA settings to this work should always be done using the following citation: Kazanidis, I. & Pellas, N. (2019). Developing and assessing augmented reality applications for mathematics with trainee instructional media designers: An exploratory study on user experience. Journal of Universal Computer Science (J.UCS). Special issue: “Immersive Learning Technologies: Research and Future Directions”, 25(5), 489-514. Webpage: http://www.jucs.org/jucs_25_5/developing_and_assessing_augmented This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.