How does a school textbook publisher get a contract to supply books to the schools? The usual graft and corruption so famously done by the Democrats?
Math doesn’t change. What the book publishers do is allow teachers or professors to write a chapter of a book they agree to teach from. That’s so the previous year’s books are dropped for the new by the same teacher. Years ago when I got My master’s degree I refused to buy the books at all. Finished with a 3.71 GPA.