The objective of this article is to model and implement a learner Supervision and Control Tool during a remote learning session of practical work. This tool will be integrated in our Collaborative Virtual L@boratory. It serves the users (learners, teachers, tutors) of our virtual laboratory during the assistance and evaluation process. It allows the tutors to be aware of the work-progress status and makes a model for the average learner based on his/her actions and interactions. The functionalities supported by this system are: synchronous supervision (tutors and learners are connected simultaneously), asynchronous supervision (using the activities’ history) and guiding the learners.