The paper aims to highlight the importance of play and performance for development and learning at all ages, both in early childhood and in adulthood. The mask and playing with the mask in this context appear as some of the possible tools and means for facilitation of play within the educational process. Performing with masks not only supports learning and development, but represents development in a nutshell: wearing a mask we are at the same time who we are and who we pretend to be. In this way, the mask can be an educational tool that can be used in all phases of the educational process, be part of the process or serve to present it. A mask can be given in advance or made while the process is going on, be one of the activities or serve to summarize the activities, and its use depends on the sensibility of the adult education practitioner.