Around the age of 2, children begin a period of life filled with challenges: they have to learn to manage their behaviours, express their needs in an adequate way, and to behave in a prosocial way in a group. This learning process is necessary for them to function well at school entry. Children need help in this task; their parents and educators are therefore essential resources. This research project will evaluate different approaches to support parents and educators in this important role. Then, we will determine to what extent this aid makes children better prepared when starting school. Sixty daycares, including yours, have been recruited to test these different approaches.