This document discusses teaching English to teenagers. It defines different age groups of teens as young (12-14), middle (14-17), and late (17-19). It notes that teens experience extreme physical changes, want to belong, and are influenced by peers. Teens think they have things figured out but also see things in black and white. The document provides tips for teaching teens such as avoiding embarrassment, affirming their strengths, and encouraging risk-taking through reasonable challenges. It stresses the importance of knowing your students and using a variety of engaging activities.