Identify the serious games that best meet the needs and expectations of teachers and pedagogical objectives of their courses remains a necessity about the integration of serious games in the learning process. Indeed, several serious games have developed in recent years, and it is often difficult for a teacher, not a computer scientist in particular, to find and choose a game that meets its specific needs. Our aim is to develop models and tools to support teachers/trainers in their choice of serious games through knowledge extraction of educational objectives, considering user feedback and their traces of interaction with the game.