[TIPS] MathWorld: The Web's Most Extensive Mathematics Resource

http://mathworld.wolfram.com/ and http://functions.wolfram.com/

 

I know this has been mentioned before but it's still a great site for Math teachers. Over 10,000 visualizations on the functions site alone. Explore the sites. Tons of interactivity. Just right for the math class that just received a room full of laptops.

 

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From TechCrunch... You may not be able to see this one at school, but if you like animations check out this site: http://www.channelfrederator.com/index Regular animations featured here and you can even subscribe to the RSS feed or even put in the code that it gives you to pull the videos into your own site.