Grinity,
I see what you're saying. Like I said, I am very interested in this (not from the standpoint of me thinking I know all the answers) because I have my own 2e and I am also a math tutor, and I definitely have had some very gifted 2e's (and young!) in my classes. I just want to help them.

But I'm interested in your thoughts on showing work. Do you think it's meaningless, if one can get the correct answer?