Here is a great story about Free software in a Kindergarten in Mexico. the blog of course is in spanish but nothing that Google Translate can't fix. The pictures and hopefully video are pricelesss.
http://translate.google.com/translate?hl=en&sl=es&tl=en&u=http%3A%2F%2Ffrenesssi.wordpress.com%2F2010%2F09%2F09%2Faprendiendo-y-jugando-con-software-libre-en-preescolar-mexico