Educational systems such as Intelligent Tutoring Systems (ITSs) are computer programs that provide customized and adaptive learning according to learner?s needs, behavior, and learning situation. Most implementations of these systems are built from scratch and are set to tackle a specific domain or a programming concept (e.g. [1]). As a result, ITSs limit the use of learner?s profile in one tutoring system. We propose a learner agent concept that allows a profile to encompass multiple learning activities. This paper discusses how the learner agent is used as the student model of an ITS. We also focus on how the learner agent collects and stores information into this profile.