Has your school district gone Google? If so, this greatselection of video tutorials may be just what you need to help out your staff.
While they are not specifically targeted at education users, there is still a lot of useful stuff here for all the major apps you would use on a daily basis.
They could also be good video introductions for students that are new to Google Apps and looking for an overview of the kind of functionality that it can provide them at school.
Gmail, Calendar, Google Docs, Sites and more are here, so even if you don’t need them now, they will be great for future use. You can view the learning center videos here and see an example embedded below.