A presentation video will be familiar; it is very similar to how you might normally lecture. Where it differs is in its scope.
In presenting an idea via video, do not try to capture an entire lecture's worth of content. Focus is key.
A presentation video will introduce students to a new idea. It should generally be focused on one topic.
Suppose the relevant topic is too large in scope to cover within 5-10 minutes. The video portion of the lesson may then only serve as an introduction, giving context to the importance of the topic within the course as a whole and serving as an organizational landmark that will subsequently be fleshed out with readings, discussions, and assignments.
In this video, the professor introduces the concept of the "projective technique," with a concrete example and a brief summary of its history.
This video briefly introduces the Correlation Coefficient. Elsewhere in the course, exercises and quizzes will be needed to reinforce this conceptual explanation and provide additional examples of how and where the measure is used.