Here is a link to a spectacular "Little Mermaid" 5D Design instructional video from Disney California Adventure, posted at
Professor Martin Rayala's wonderful blog "andDesign" (K-12 Design
Professor Rayala's blog is awesome for PBL...
He has a very succinct writing style: always including a brief list of PBL process points.
This example of 5D Design is:
2. Visualization (Disney staffers call it "Blue Skying" :-)