lottie, your last one hit the nail on the head for me, I was always good at exams, answering questions was fine, I just could never write essays, I'd lose track of where I was going, my structure was all over the place and it was always a mess.
I know how to write an essay as when I started to help my lass out in structuring her essays she started to do really well, I just couldn't do it with my own!
I like your idea on teaching boys and girls being different, I may have to use that idea one day, I definitely think it's right!