Hi Bernabe:
Varieity is very important. Students retain more when differenjt media are used to provided the lessons.
If a course has well written student learning outcomes and course objectives, that provides a great platform to choose alternative methods to teach from. I think we always want to think about how best can this material be presented in a manner that's effective, interesting, and memorable. Usiually, that won't be just one or two meddia choices.
Regards, Barry
