Classroom discourse involves interaction between teachers and students and among students. It plays an important role in teaching and learning as the teacher's ability to handle student contributions determines lesson success. Effective classroom discourse provides clarity, allows the teacher to identify student talents, prompts new thinking, and gives students opportunities to speak and learn new topics. The nature of classroom discourse involves shared power between teachers and students, with both bringing their own agendas. Different modes of interaction are possible, including between teacher and individual students, small groups, and the whole class. The role of the teacher is to maintain a positive learning environment that encourages innovation and understands students. The quality of student learning depends on the quality of classroom discourse.