PS: The ‘high horse’ bit is a good example of problems I’ve had with hundreds of other teachers. Don’t talk down to us like we’re eons behind. Most teachers would be surprised at how fast students will pick up the subject if they just spoke to them as equals. I have a twelve-year-old sister who is damned clever. I’ve been speaking to her as equals since she was five and she understands EVERYTHING I say (even the not-so-politically-correct things that we will often discuss when the parents aren’t in ear shot). Hell, we talked about Black Holes the other month.