Most courses use a combination of lectures and seminars. A lecture consists mainly of a delivery by the lecturer and is given to all students on the subject at the same time. Seminars are classes of typically between 10 and 25 students. They consist of going through various questions or problems, either as the whole group or in small sub-groups of two to five students. Alternatively students might give presentations or take part in various other activities, such as role playing or debates. Another type of class that is commonly used is workshops for groups of 25 or more, where students work through problems individually or in small groups, with tutors giving help where required and possibly going through answers from the front.
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