I like the teaching idea, but I feel like there is a step missing in here: > When my students encounter a math problem they can’t answer, I have them put it in

I like the teaching idea, but I feel like there is a step missing in here: > When my students encounter a math problem they can’t answer, I have them put it in the error log with an explanation of how they did and how they knew how to do it. If they can't answer it, where does the "how they knew how to do it" come from? Their teacher/tutor?