This video explains the CK-12 FlexBook System. I think it does a pretty good job of explaining how to use the text books and how to make specific ones for your students, too.
I came upon this site while I was doing research for my Ed Tech class. I am always amazed at the amount of information available and how much of it is FREE. I’m going to try this system out with my ICS students. I’ll let you know if it works out as great as I’m hoping!
If you try it, let me know! How Cool Is That?