ABSTRACT
It is sometimes forgotten that lectures are for the benefit of students. They have three purposes: coverage, understanding, and motivation. Without motivation attention is lost and there can be little understanding. Without information on a topic there is nothing to be understood. These purposes of conveying information, generating understanding, and stimulating interest are therefore interrelated. But in any one lecture one of these purposes is likely to be prime and thereby shape the structure and content of the lecture (see Activity 2.1).
