A presentation in Australia at the International Conference on Pedagogies and Learning: Meanings under the Microscope, at the University of Southern Queensland on 18 September 2005. This presentation is philosophical and psychological, going deeply into the nature of knowledge, media and perception. Like the conference theme, it places pedagogy ahead of technology. Sections of the presentation are: Deconstructing Definitions, Defining Understanding, Understanding Knowledge, Successive Educational Media, Podcasting as an Example, and For Further Research. The Abstract and Outline with links to related articles are available as a Web page to read while listening, or the PowerPoint presentation can be downloaded.






