There are a couple of great curricula e out there for you. I personally mix and match them all.
...................................................................................................................................................
Commonsense Media Digital Citizenship Curriculum
...................................................................................................................................................
Youtube Digital Citizenship Curriculum
An interactive curriculum aimed to support teachers of secondary students (approximately ages 13-17). The curriculum helps educate students on topics like:
YouTube’s policies
How to report content on YouTube
How to protect their privacy online
How to be responsible YouTube community members
How to be responsible digital citizens
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
Think B4U