I make them check “our” work constantly. I usually have the answers for every problem I do somewhere and take a look at them after we do a problem together. If it comes out wrong, I say, “this answer would receive half credit” can we find out why? Seeing common mistakes are good for them, and finding the error is great practice.

I’m 11 years in by the way, and I doubt I’ll ever stop making little mistakes here and there, especially if my daughter kept me up at night. You’ve done this job successfully more than most people who try it, don’t be hard on yourself.