If you are posting lessons to SlideShare, some things to keep in mind:
- you should have permission to use any images, audio, and video that you upload
- if you are doing a slidecast, syncing audio to your slides, then it is best to have slides that don't have a lot of text. It is boring to listen to someone read massive amounts of text from their slides. Studies have shown that we learn best when we have appropriate images, a small amount of text and the presenter giving information orally. We tie what we hear to the images and the images help us to remember the information that goes with them.
- if your presentation does not have an audio track, is there enough information that it makes sense to the viewer? This is where you may want to have more text.