This study centers on the development of augmented reality (AR) learning scenarios through the integration of the 4C/ID instructional model with the User-flow graphical notation. Its primary objective is to offer non-technical educators and designers a straightforward and efficient tool for specifying user tasks within learning environments. The Learning Interaction User-flow (LUI) notation has been specifically designed for this purpose, allowing for a visual depiction of user tasks without the intricacies and challenges associated with other technical notations. Within this research, a graphical notation is presented alongside a study case and a pilot assessment involving expert users in graphical user interface (GUI) design. The results obtained underscore the potential and ease of use of this notation in representing learning tasks within augmented reality scenarios.