
One way I avoid this is to provide TONS of additional information. n addition, my slide presentation is interactive - which means that those students who take the time to attend the Live Chats, or listen to the archived version have the opportunity to get immediate feedback (or they can re-do the recording).
One other thing that I do is make the presentation visually entertaining - lots of animation and examples of exactly what I am teaching. Believe it or not it works!