A seminar involves students reading papers on a theme and then discussing it in a group. The objectives are cognitive, like developing critical thinking skills, and affective, like developing tolerance of other views. In a seminar, an organizer plans the program, a chairperson directs discussion, speakers present on topics, participants ask questions, and observers watch. Seminars can be mini, main, national, or international and have advantages like stimulating thinking, though they cannot be used for all subject matter or education levels.