He started drawing lightly in pencil to help me correct it so I could see where the lines needed to go on the house. "You should have this line here and this one there and . . . " Then he drew a line right down the center of my drawing. "Dad! I just spent two hours on this! Don't draw on my picture!" "Well," my dad continued, "the center should be there. You should really start over."
He explained what I did wrong; he didn't get mad back at me; he just showed me what I needed to do and how to do it, but left drawing it again up to me.
I told my dad later how grateful I was for his help. I could've handed in that drawing no problem: I could tell something wasn't right, but I didn't know how to fix it.
This applies to tutoring. I realized I shouldn't be afraid or nervous about giving correction. This hasn't happened a lot, but I've seen papers that are far off from what the instructor wants and I've felt guilty about letting the student know they have to start over.
"All that work" I think to myself. "I don't want to tell them to start over. Maybe I can give them a few pointers so they can work with what they have already." Not a good idea.
I've decided that if the student has time, I will let them know they need to start over (and do my best to explain why I think that.) Yeah, it takes work, but it's better for them than handing in something that will get a low grade. Besides, starting over helps them learn to fix their mistakes and how to do it right.
My point is, giving correction is a good thing even though it's not what the student wants to hear.