I didn't watch the video beyond 3/4 minutes. Doesn't it include examples?

Quite a lot of Open Courseware nowadays includes things like assignments and exams. Some contain solutions, but the problems themselves are a useful starting point: from experience I can say that you get a lot more out of a video like this if you attack the problems that are posed by the lecturer in the context of what he or she presented. If you get stuck you can get ideas from people here.