Supported by the CLLE and IRIT laboratories, the POUCEEC (Parcours Ouverts et Compétences pour l’Education à l’Esprit Critique – Open Pathways and Competencies for Critical Thinking Education) project aims to evaluate the educational contributions of the digital platform for students and its usefulness for teachers. In a participatory design approach, the platform will allow to collect feedback and needs of teachers in order to improve the platform’s functionalities and to build a tool in line with their practices. Starting in 2023, the platform will be deployed in 25 secondary schools in three academies: Toulouse, Aix-Marseille and Lyon.