You can tailor the method to suit the need of your learners but we recommend the following procedure:
Watch the video-lesson prior to the class and prepare 2 or 3 questions that the class can discuss
Allow the learners to watch the video-lesson once in its entirety
Play the video again, this time, pausing where you'd like to encourage and facilitate class discussion
As you'll see, some of the video-lessons are paired with an assignment or assessment for a more holistic learning experience
The assignments and assessments can be found in the "Video-lessons" tab, or in the description of the video on YouTube.