Is this the face of concern?
(with apologies to a certain instruments lecturer who teaches on the south coast...)
I can appreciate your frustration- there's nothing worse (OK, barring repeated pokings in the eye with a sharp stick) that doing a professional qualification and being faced with non-professional English or unprofessional use of grammar. I get particularly frustrated with it (as anyone who knows me will testify!).
As I've said in another thread, I've seen lots of schools notes, and with some subjects some schools notes are vastly better than others (I chose my [full time] school based on the quality of their notes). I suppose the trouble with M&B is that it's very much a practical subject, and there's no substitute for good practice at the sorts of questions you might be faced with.
My advice: get yourself some good feedback, practice the questions, and if needs be supplement it with a revision book from another school or a pilot shop.