What do I know already?

Thinking about something Mark Howe had said to me before. He said that before researching something he'll write down what he already knows so he can go back to it and doesn't make assumptions about what people already know once you know more about it.

So here's what I know (before researching)

BSL, - different to different countries

There are schools for Deaf people

Lip reading is useful

Mainly use hands or mouth words?

How to finger spell and how to say my name