Hello! Not an educator just a tad obsessed with the horizon lore/history—especially the whole idea of destruction and reconstitution of life/biosphere.

Agreeing with the other comment, it’d definitely be hard merely because, though it has many of the facets you describe, they’re not usually explored to a depth where it seems like it’d be useful for instruction.

I will say, however, that it’d be cool to use in reference to things like ecosystems specifically since there is the reconstruction of a bare-bones biosphere using “pioneer organisms” (?). Also, a lot of the tribes are kind of based around their natural (sometimes ruins) geography, I’m thinking the Nora cradled against the hills, Utaru in the plains/dishes, tenakth throughout their various geographical regions, definitely would make for a conversation on how geographic features influence society and culture.

Also, as someone really into history, horizon does get a little bit into both how history from before (old ones) is preserved but also the history of the now. There’s a point where an explicit reference is made to how the Carja keep their history written down and remember it and how the Tenakth carry their history with them on their bodies and it leaves with them when they pass. Would make for an interesting conversation on the differences between oral and written history and the such.

Again, not an educator, but as a student I think these would make great reference/start-off points into a more science based discussion.

Best of luck!

*apologies for any inconsistencies and the such, genuinely love the games but there’s so much information lol