I learned about a self-paced course from Google called Mapping with Google. Certificates are available for both Google Maps and Google Earth but projects must be completed by June 24 to earn a certificate.
The maps course uses a preview version of a new Google Maps as well as Maps Engine Lite which is used to create customized maps which can then be embedded into your own website, as I have here on European Photo Album. I also created a map of things to do and see in Sandwich, MA. I think this would be a great product to use with kids.
I have not started the Google Earth portion of the course yet, but I am looking forward to working with this product.