In situations where student motivation is known to be high, the context will require little explanation. In other contexts, however, students are encouraged and assisted by an interesting scenario that frames the activities. Scenarios are usually provided by a story, role play, or simulation, within which the activity plays a pivotal role in helping students to contextualize content. An interesting scenario will make extensive use of humor, imagination, reward, anticipation, or drama to enhance the activity. It will have topics and themes likely to be relevant and interesting to the target audience. And it will make the learning activity seem like an obvious or necessary thing to undertake.