You don't need Keynote to convert a PowerPoint presentation to be used in an iBook, just go here!http://www.zamzar.com
Create your own "Dummies" cover! http://covers.dummies.com
IBook Author how-to's from the Dummy folks!
An Introduction to Creating Ebooks for the iPad (a free ebook)
By Nellie McKesson, Adam Witwer
Publishing with iBooks Author
There are a variety of tools that can help students with their sharing their understanding. Click on an application name below to access its tutorials.