The document discusses De Week van de Lentekriebels, which is an initiative in Flanders to provide sex education for children and youth towards spring each year. It involves over 20 partner organizations from fields like education, youth work, health, and research. The partners work together to develop age-appropriate sex education materials through a participatory process involving professionals, young people, and testing. The materials are shared on websites for professionals, parents, and adolescents. Other activities have included a YouTube competition, manuals for teachers, and events, with the goal of generating media coverage.