I wish I had more ideas - one or two of my kids give me a very hard time when I try to explain or teach something - they want to learn, but they can't stand making mistakes and don't want to be taught. It's as though they just want to know automatically without having to stretch their brains to do so, and then they get frustrated when it doesn't work that way.
I might try to find another source of information on the particular issue that doesn't involve your explaining - perhaps a lesson from a texbook or other on-line program (maybe see if there's something applicable at Khan Academy?)
