The Siemens We Can Change the World Challenge is the first and only national K-12 sustainability education initiative aligned to state education standards. The middle school challenge is starting soon!  Learn more...

Summer vacation? Not for the DEN!  We'll be hosting webinars throughout the summer. Visit our webinar directory to see what's available and join in the fun.  Don't forget, you can register now for webinars throughout the 08-09 school year!