In this work, Maria Montessori examines the educational concerns of the older child, the adolescence and even the mature university student. She considers each level and seeks the optimum method of facilitating growth. Dr. Montessori first analyses the characteristics and needs of children from seven to twelve. It may be said that veritable metamorphoses takes place during this period and constitutes one of particular importance for moral education, the concept of justice and social adaptation, the passage to abstraction, the role of the imagination and ‘going out’, the key to culture. She also discusses the education of Adolescence, the ‘Erdkinder’, and the education at the University.