I came across these links while chasing something else. I'm sharing them with you in the hopes that they may be of some use. The source checker one is actually a game (like Factitious) which might get the kids on board for checking out some 'fake news' material. Who knows?
There are also a couple of weblinks regarding mini lessons and secondary programs.
https://www.abc.net.au/education/media-literacy/
https://games.abc.net.au/res/media-literacy/source-checker/index.html
https://www.abc.net.au/tveducation/programs/mini-lessons/13417954
https://www.abc.net.au/tveducation/programs/secondary/
Anyway, take a few moments and have a look. They may be of some use to you and give you some ideas.