The use of wikis is exploding at the two schools where I work. One of the most dramatic demonstrations of how wikis can be used is in Matt van Raalte’s Grade 9 Math class. 
Matt has literally thrown the textbook aside, and has placed all his course materials, from class notes to review and self-correct answer sheets and links to web-based resources, on a wikispaces site. His daily lessons, reviews and homework help are all managed through a wiki.
Parents and students have responded fabourably, and Matt tells me it has made his approach to teaching far more student-centered. He is even dabbling into self-paced learning – which by his own admission is a BIG stretch!
The textbooks are stacked in a corner of the room – never opened by student hands. Students are engaged, and have access to the information (digital and networked) from anywhere, anytime.
You can check out his class wikisite here.
Thanks for the resource. I taught the first half of a wiki class today and was searching for some really active math wikis, this one is perfect.
Just a suggestion you might want to pass along to Matt: try using Splashcast with some of the PowerPoint files. It will allow him to attach audio to the slides so students can get a fuller picture when they view them on the wiki.
Patrick, what a great suggestion! Sometimes there are real gems in the comments! Wikis are excellent sources of information for so many things and when students get involved, they are great tools for learning!
Pingback: math wikis