They can also stimulate exposure to authentic input through the activities they suggest (e.g. interviewing the teacher, doing a project in the local community, listening to the radio etc.) In order to facilitate acquisition the input must be comprehensible (i.e. understandable enough to achieve the purpose for responding to it). Means that there is no point in using long extracts from newspapers with beginners but it does not mean that beginners cannot be exposed to authentic input.