Dear Parents and Educators, in this material you will find an engaging story and interactive activities designed to help children understand Obsessive-Compulsive Disorder (OCD) and manage it in a positive way. Through the inspiring narrative of Mateo’s journey to the stars, children will learn to identify and control their emotions using practical techniques such as deep breathing, counting, and positive self-talk. In addition, examples of role-playing games are included to facilitate the application of these strategies in everyday situations, fostering confidence and self-control to face the challenges of their condition.