What is a teacher? A teacher is often known as an educator, an instructor, a facilitator, a guide to learning, a friend, a therapist, a walking grammar book for ESL students. Teachers do it all and more and we have it all, or most of it. The exception is money but that is not a bid deal when you count all the perks of making a difference. As an ESL teacher you will find friends around the world who cannot wait for you to visit, or better yet live in a country where they pay you to teach English while giving you a place to stay.