Hi Mary: The use of your portal opens a lot of varied options for your students. Although a bit time consuming at first, the addition of narrarated slides is a great example of using mutiple senses using existing resources.One caution, because it's a one way type of presentation, students will sometimes get a bit tired of the same voice without the nability to interact. A blended course or presentation would make a lot for a great course. The other media you listed is great - more variety leads to better attention and retention of needed information. Regards, Barry