To better identify the risks of radicalization among young people, two NGOs (the European Foundation for Democracy and the Counter extremism project) publish a practical guide for adults. It aims to better recognize signs in adolescents and presents 26 cases, as well as questions and answers.This tool, in which the Ministry of Education has participated, will also allow teachers to have the keys to react to a student who refuses to attend a group outing for example, or when they notice the presence of a preacher around the school.