The evolution of the school population in Portugal has been remarkable, with strong marks of heterogeneity and multiculturality. One important feature of this change is that pupils with special educational needs began attending regular classes. However, the educational community's practices do not always find solutions that correspond to the principles of inclusiveness. The project Inclusive schooling: From possible to undelayable! puts these principles into practice through innovative classroom practices, such as collaborative work, which promote the effective inclusion of all pupils. The analysis of several cases, including pupils with SEN, shows that every child learns, albeit with different rhythms, and that inclusive practices facilitate everyone's socialisation, knowledge appropriation and mobilisation of competencies, allowing the construction of a viable life project, even for pupils who were at risk of exclusion.