We present the design and the modeling of epistemic feedbacks for a mathematics training platform. We explain the didactic basis (including the modeling of didactic knowledge and predefined learner’s profiles), the computer modeling of feedbacks and a decision process for these feedbacks, a process for which we detail the factors taken into account. We then present the algorithm formalizing this process. Finally, we then discuss the contributions and limitations of the work carried out and present the continuation of the work undertaken.