"I treated failure to get the answer as my failures, not theirs." -- I wish more teachers would have this attitude. A while back I used to teach programming cla

"I treated failure to get the answer as my failures, not theirs." -- I wish more teachers would have this attitude. A while back I used to teach programming classes and asking them questions about what I was talking about was a very important metric for me. If I would notice any kind of hesitation I would focus more of that issue. I'd try to approach the same problem from different angles until I would be convinced they "got it" and were not just guessing. It's the teaching equivalent of debugging your programs and see if they run as expected.