We could save billions of dollars every year on text books which are written by a handful of people, produced by 3 major publishers and printed overseas.
The cost for New School Books is a serious expense Public Domain Book can cut that cost and they are already available from Government Repository Libraries.
The Federal Government has spent millions of dollars developing all types of educational books. The State Department has books that teach foreign languages, there are books on basic and advanced math, science and almost every subject available through the Department of Education.
There is no need to redesign books on math every year the only benefit is to publishers.
With the availability of tablets, laptops and home computers or even computer labs at colleges the education of students in most core studies does not need high costing books.
Teachers should review what is available then offer changes and additions as part of their job.
Unfortunately many teachers are incompetent and can only teach out of a book. They do not know their subject or their students.
And our educational system is corrupt.