The document provides an overview of adolescence as a period of "stress and strain" and the role of schools and teachers in facilitating adolescent development. It discusses adolescence as a transition period between childhood and adulthood characterized by rapid physical, social, and psychological changes. These changes cause stress and confusion for adolescents. The summary highlights the physical changes of puberty, social development including increased importance of peers, and psychosocial challenges in establishing identity. It also outlines ways schools and teachers can support adolescents, such as through physical education, nutrition education, medical checkups, and sex education.