CK12 Foundation is a nonprofit dedicated to created affordable textbooks. And by affordable, I mean free. You can find a series of them on the Kindle. These are all really good quality textbooks in science and math for advanced level high school students.
I think that the idea of having more affordable books is a great one, and that these books are excellent review tools. They do have some room for improvement, as the Kindle is not fully able to show the symbols needed in say, the Calculus book. In addition to Calculus, you’ll find Biology, Chemistry and Statistics. Always loved science, but I shudder to even think of math! CK-12 Foundation has done a good job in creating textbooks that are easy to read and explain concepts really well.
Ck-12 Foundation creates FlexBooks. These books are set up so that users can edit and tailor learning modules to meet the varying learning styles of each student. By making them available on the Kindle, it makes them more portable. Another thing that I like about these texts being available on the e-reader is the ability to adjust font sizes More and more FlexBooks are becoming available under the creative commons license. Once these come available, they’d be a valuable addition to the Kindle Library Lending program.
Kindle haven’t really taken off in education, but there is potential for growth if the developers, publishers and all other parties involved play their cards right. If the Kindle can get established in education, than it could be a step towards more affordable textbooks as well as much lighter backpacks!