My friend Susan Headley (Coins guide at About.com) has written a few articles on coin collecting for children. If you have a child currently collecting coins, or are thinking about helping a child to start a coin collection, please take a look at her articles below.
If you are looking for a children's coin album, I highly recommend Coin Collecting for Kids by Steven Otfinoski . I was so happy with this coin album for my 5 year old son that I bought another one for my 10 year old niece. It is a fun album and very educational for kids.
How Do I Start a Coin Collection for a Child?
How to Start a Coin Collection on $4
Learn How to Clean Coins Safely for Kids
Ancient Coin Resources for Schools and Teachers