15.1 What cognitive changes occur during Piaget’s stage of formal operations?
15.2 How do basic cognitive processes change during adolescence?
15.3 How does moral reasoning develop during adolescence?
15.4 How is teen language different from the language of children and adults?
15.5 How do schools, family, peers, and community influence teens’ academic achievement?
15.6 What threats to academic achievement do high school students face and what factors support their success?