Classroom iPod touches & iPads: Dos and Don'ts
Do delete content. Since you are mirroring the computer's iTunes Library onto the iPods, deleting items from iTunes will delete them from the iPods. After you no longer have a need for a podcast, video, or audiobook, delete it so it is not taking up room and cluttering up the iPods. Chances are you want to use this content with a future class. If it's something you will use again, drag and drop it into a folder on your desktop. You can drag and drop it back into iTunes for the next time you want it synced to iPods. Do configure the Music app for easy access to playlists and podcasts.