Those taking the new GED tests will need to have adequate keyboarding skills. From what I have heard, a GED student will need to be able to type 25 - 30 words per minute to have a better chance of success. While that doesn't sound like a lot.... for an adult who has had little typing experience, it can be a road block to getting the GED credential.
As a basic skills and GED instructor, I have found that the sooner you get these adults typing the better. There are many sites on the internet, but I like the following two the best. And the best part is that they are both free!
Dance Mat Typing (http://www.bbc.co.uk/guides/z3c6tfr)
Typing Club (http://typingclub.com)
Check them out and let us all know what you think!