Kids aren't born knowing how to use a keyboard. But in today’s keyboard-centric world, kids need to learn to type. Luckily, there are some good free online typing programs aimed at students.
BBC iWonder: Dance Mat Typing.
There is also Sense-lang.org (though not a kid-oriented, it is still kid friendly).
The article Ed Tech Ideas: Keyboarding Sites for Kids lists many links to other free typing games.
Need more help? Contact a librarian.