By CELTA, Difference between

I had not thought about this for a very long time, but being around this site has given me a little taste, and I am now hungry for it. I want to teach English. Simple really ... yeah, right! Can someone point me in the right direction for natural english speakers to do the right courses to...

I've just had a Celta pre-course interview, after which I was offered a place. The interviewer went through the language awareness task that I'd submitted and asked me how I would respond to a couple of questions that an efl student (beginner) might ask. One question I recall was, 'What is a...