Whole class discussion can provide a forum for broader interpretations and an opportunity for students to clarify their understanding. It can also assist students in solving challenging problems when a solution is not initially available. Teachers have an important role to play in the discussion. Focusing attention on efficient ways of recording, they invite students to listen to and respect one another‘s solutions and evaluate different viewpoints. In all forms of classroom organization it is the teacher‘s task to listen, to monitor how often students contribute, and to keep the discussion focused. When class discussion is an integral part of an overall strategy for teaching and learning, students provide their teachers with information about what they know and what they need to learn.