I would suggest starting with "Tour of the Basics" and continue on from there. There is also a Teach. Genetics page the university is working on, but I don't think it would take much effort to walk students through the material found on Learn.Genetics.
The idea of having an "online textbook" like this that can be updated on a day-to-day basis and is accessible to all is truly a revolutionary idea that has potential across all fields of study. It's something we might think of doing as time goes on as well.
Hope this helps. Enjoy! If you have a favorite educational resource you would like to share - contact Helios Labs and we'll be glad to feature it.