And sometimes the textbooks are just really, really crummy. My husband is an engineer and even he was getting frustrated trying to help my daughter with her physics.
We ended up borrowing a bunch of old physics books from her uncle, that were much better written and easier to understand.
And the same thing just happened again today! My daughter's taking Statistics with a teacher who has an impenetrable accent and a mediocre textbook. I was sorting through a pile of old books and what do I find but a barely used Statistics text! I gave it to my daughter and she immediately started reading it. She says it helped her figure out a homework problem she'd almost given up on, because her official text wasn't being helpful.
It really makes me wonder if textbook quality has gone downhill in the last decade or so...
It has. I keep saying that I am going to sit down and write my own text and publish it via the web. Maybe now is the tiem to do it since many school districts are looking for new common core materials...
I have severely hijacked this thread. It has gone off on a tangent...But I do enjoy the discussion none the less.