I propose that students should write the textbooks and pass them on to the next class, who in turn edits and writes more of the same textbook. Using a tool like a Wiki that keeps complete history of every addition, edit, delete to the content of the teaching material. And, of course, with citations and references.

Start with the old textbooks in the school library and teachers editions and give writing assignments for new original writing that becomes the teaching material for the current class and future classes.