We have always been open with our children re money, we discuss household bills, saving for things, different accounts and shares.
When they were young we made things very visual. All loose change would be put into a large whiskey bottle. As a family we would save, my children became very good a spotting dropped coins!! The children would add the change to the bottle. Over a year this would build up, just before our summer holiday we would all empty the jar and the money would be used for holiday treats, everyone took a share. We still have this bottle, it was something my dad did for us when we were young. 
Both children also had a building society account. Inially when very young (under 6) I would be in charge, I would be given birthday & Christmas money for them, as they did not really understand the value of the money, I would pay this into the account on their behalf, and allow them to spend some of the money only.
When they reached 6, they were shown their building society accounts, by then they had a few hundred pounds in, and had interest added - which was a great motivation and discussion point. They were then involved with the paying in of birthday money.
When my children turned 11, we took each one to open a bank account with a cash card. We pay each child monthly pocket money by standing order, 50 pence per year of age, x 52 divided by 12. We wanted to get them used to monthly pay.
This money is given with no strings attached. Chores are carried out in our home for free, as we are a family and work together to make a home.
The children are given guidelines on how this money can be spent, I.e, they must buy their mum and dad a birthday and Christmas present, no more than £10 can be spent on this, homemade presents are welcome as are things from a charity shop.
We have taught them how to file statements and how to check their accounts each month.
Both my children (now 13 and 11) are very money aware. Neither have ever taken a penny from their building society accounts, both manage their money well. My oldest now is looking how to make more money, he is saving for a new PC. He has various schemes that are working well for him.
As parents we also have a child trust fund accounts, started by the government voucher when they were born.