The cloud based nature of the Chromebook means that teachers only need to make sure that students can connect to the internet and not be concerned about other aspects like software upgrades, viruses, etc.
There are a number of resources out there to help teachers devise lesson plans that integrate the use of a Chromebooks. A very useful resource is:
Samsung also has a document with examples from schools of how Chromebooks are being used called New Paths to Learning with Chromebooks.
Feedback from students regarding our Chromebook trail at St Aidans.