An intro, to let students know what will happen in the class; a highlight, to capture the meaning of the subject; a heads-up, on what to expect; and maybe, a rationale, for the format in which the course is delivered.
To accomplish all of these in a quick and engaging way takes more than a syllabus or a course homepage. It requires condensing the course description and combining the presentation with multimedia or special effects…like a movie trailer.
According to a report by the Chronical of Higher Education, course trailers have become increasingly popular with the growing use of social media. The report cited Harvard University as an early adopter of course trailers because students there spend the first week of the semester “shopping” for courses they may want to take. So course trailers are a big help for boosting student interest and attendance.
Here is a course trailer for CS50 at Harvard University, a course that focuses on an introduction to the intellectual enterprises of computer science and the art of programming: