Just discovered "Picturing Information" a 4 minute video which analyzes an Infographic depicting per cent of mothers of 4-year-olds who work outside the home. After pausing to give viewers time to study the infographic and make their own analysis, author analyzes the infographic: Why does child have sad face? Why is mother pictured as a professional (vs blue collar job)?
As you can see from the video below, this is a very simple technique for creating a video to serve as an online lesson. In many discussions of the 'flipped classroom' (where instructor records and posts a lecture for students to study before class so that classroom time can be used for actual discussion or hands-on activities), the tools involved are quite sophisticated and/or expensive. But the technique here is easily available to anyone sitting at their home computer who has a smart phone or digital camera that records video.
One can easily adapt the technique of this video to use with widely available PowerPoint. Just insert the infographic (or poem or short text) in a slide, record your narration, then convert to video (this function included in MS Office 2010 and later).