Teaching Go can occur and different levels. Different skills are needed for teaching beginners as opposed to those who are improving or at a high level. We have collected here advice to help those who plan to teach Go.
Toby Manning has written a Guide to Teaching Go (PDF).
Information about Teaching Beginners is also available in Chapter 4 of the Club Organiser's Handbook.
We also have some advice for those intending to run a Teaching event.
In addition we have equipment, such as demo boards, that you can borrow and literature that you use, such as beginners' leaflets. See here for the current status.
There is also a BGA dedicated KGS account that we use for teaching purposes.
We also have some other Resources for Teachers that you might like to use.