The document discusses communication in the classroom. It defines communication and identifies its key elements: a sender, message, medium, receiver, and feedback. It also describes different types of communication like interpersonal, intrapersonal, verbal, and non-verbal. Barriers to effective classroom communication are explored, such as physical, language, background, and psychological barriers. Finally, ways to improve classroom communication are presented, like creating a safe environment, encouraging teamwork, active listening, using technology, and communicating respectfully.