So handwriting isn't something that is really taught in schools anymore, although I think it's rather critical. It doesn't help that kids do so much work on computers today. But there are still times where you need to be able to write, and people need to be able to interpret what you are saying. Nothing is more frustrating than trying to figure out someone's handwriting.
Here are some sites that offer free pre-made sheets, or make your own sheets that you can print off your computer.
Worksheets for Pre-K - K
Handwriting for Kids
Printable Practice Paper