The field of Technology Enhanced Learning (TEL) has been continuously evolving during the last three decades. The introduction of computer-based training, and later on networked-based learning, mainly due to the advent of the World Wide Web, led to the definition of e-learning. Advancements in mobile and wireless technologies have also had an impact in educational settings, thus generating a new approach for technology-enhanced learning called mobile learning or m-Learning [Sh09]. The rapid development of these latest technologies combined with access to content in a wide variety of settings, allows learners to experience new learning situations beyond the school’s walls. This latest view on technology-enhanced learning supported by wireless technologies and ubiquitous computing is referred to Ubiquitous Learning or u-learning [RP06]. While context is an important aspect of mobile learning, it is the central concept of u-learning, due to two important features of the learning environment, namely context awareness and adaptivity. The notion of context awareness means that the pedagogical flow and content that are provided to the learning environment should be aware of the situations in which the learner/s actually is/are. The term context adaptivity refers to the idea that different learning contents should be adaptable to the particular setting in which the learners are situated. © 2016 Gesellschaft fur Informatik (GI). All rights reserved.