Go to Settings
Tap Messages
Turn Messages Off (should be gray)
Also you should make sure that the restriction do not allow students to log out of our accounts and log in with theirs. To do this you will need to:
Go to Settings
Tap on Restrictions
Tap Enable Restrictions
Choose a 4 digit code (email me that code)
Turn off:
Face Time
Camera ( unless you are using)
iTunes Store
Apple Music Content
Deleting Apps
In-App Purchases
In the Allowed Content Section:
Music- Clean
Movies-PG
TV-G
Books- Turn off Explicit Sexual Content
Apps- 12+ is fine (because you will be the only one downloading)
Websites- Limit Adult Content
Privacy:
Location Services- ON- Allow Changes
Contacts-Don’t Allow Changes
Calendars- Don’t Allow Changes
Reminders- Don’t Allow Changes
Photos- Allow Changes
Share My Location- Allow Changes
Bluetooth Sharing- Allow Changes
Microphone- Allow Changes
Twitter- Don’t Allow
Facebook- Don’t Allow
Advertising- Don’t Allow
Accounts: Very Important
Don’t Allow Changes