Find a good teacher, as I found for my sons. I feel the worst thing you can do is to try and teach your own children yourself, because there is a natural rebellion that occurs.
Here's good advice for practice: go into partnership with nature; she does more than half the work and asks none of the fee.
I was on Murder She Wrote with Angela Lansbury. She was fantastic... she was lovely to everyone, she was always on time, prepared.