The document discusses several key aspects of adolescent development according to Piaget and information processing theory. It describes Piaget's theory of formal operations including abstract thinking and hypothetico-deductive reasoning. It also discusses some cognitive tendencies in adolescents like egocentricism, imaginary audiences, and a sense of personal fable. The document then briefly outlines Kohlberg and Gilligan's theories of moral development and factors that influence school performance and career choices in adolescence.