This manuscript presents our main contributions in Technology-Enhanced Learning (TEL) and in particular how Serious Games, Mobile Learning and innovative Human-Computer Interactions, can be designed and used to improve learning at all levels, from pre-school to vocational training.

We have addressed two main challenges. First, we provide methods, models and tools to help all the necessary actors, such as teachers, game designers and developers, design effective TEL systems. Through multiple projects tested in classrooms, such a Mixed Reality game for learning fractions, a Virtual Reality simulator to help professionals control their emotions or a game on an interactive tabletop with tangible objects for learning computer programming, we identified several design principles that contribute to the research community.

Our second challenge is to provide adaptable models and authoring tools to facilitate the development of TEL systems by the teachers themselves and thus increase their acceptability and use in schools. In particular, we developed models and authoring tools to help teachers create two types of TEL systems: Mixed Reality educational activities and geolocated smartphone applications for field trips.

Finally, based on our experience, we propose several guidelines to design TEL systems and TEL authoring tools with pilot teachers.

On the basis of these contributions, a research plan is presented for the future. In the short-term, I plan on finding more design principles for using technology to encourage collaborative situated learning. In the middle-term, I plan to continue my work on authoring tools with European partners. And in the long-term, I would like to pursue a wider challenge to increase the impact of TEL research in French schools. This implies the proposing open-source software architectures to encourage collaboration among researchers, Education Technology companies and teachers.