It has students adopt responsible and independent modes of learning. Prejudices and biases are frequently modified when subjected to scrutiny of peer group. The combined critical thinking of a group is more likely to correct deficiencies in evidence and reasoning than an individual might. The intent of discussion is not so much the resolution of a problem as it is the weighing of evidence and proposals. Open-ended problems are appropriate for discussion.
Discussion follows a logical sequence of development.
Student questions are reflected back for class analysis. If there is a panel discussion, students may participate in evaluation of the panelists' contributions. Discussion presupposes adequate preparation by teacher and students. Permissive characteristic of discussion tends to encourage digression from topic at hand. Discussion leader may be unable to maintain an open mind in accepting grounded opinions of the students.