Workshop 9 postings

My blog comment for 9-A-1 can be found at: http://teachnsg.blogspot.com/2007_07_01_archive.html.

My 2 blog comments for 9-C are at:
http://teachnsg.blogspot.com/2007/08/2020-vision.html
http://tlld.edublogs.org/2007/08/06/2020-vision/