The document discusses adolescence, defining it as the period from ages 12 to 19. It notes that adolescence is characterized by rapid physical, mental, emotional, social, and sexual development. Some of the key issues faced during adolescence include problems related to rapid growth, sex education, emotional instability, independence, lack of maturity, insecurity, and adjusting to social values. The document concludes by outlining several educational implications for adolescents, such as providing a suitable learning environment, guidance, sex education, opportunities for co-curricular activities, and training of emotions.