YOUR QUESTIONS: You were a terrible teacher. What's your opinion on my opinion?

Its your opinion. It is not something I can say is correct or incorrect. That is the nature of an opinion. If I was to reflect on my own experience as a teacher, I would admit to several faults and areas that need to be improved upon. I did indeed accept and receive some criticism while I was a teacher and was grateful to receive it. However, at the time, I had no-one tell me I was a 'terrible' teacher and would argue that is something of an exaggeration, even if I was not great at my job. Opinions are much better expressed and considered more credible if and when provided with evidence. Anyone can express an opinion, it takes a bit more of a brain to back it with evidence.