As long as you log in before internet is disabled (don't show up late to class?), you'll be in your user account. The laptop screens don't become black once the

As long as you log in before internet is disabled (don't show up late to class?), you'll be in your user account. The laptop screens don't become black once they lose internet connection. Google Docs/Sheets/etc supports offline editing, and a quick Google shows there are IDE's that run on a chromebook with offline mode support.