To the best of my recollection, Russia was generally cited as the one example where a single more-or-less contiguous country crossed two different continents. I don't believe we ever so much as touched on the US's non-state territories aside from Puerto Rico. I took the highest level honors "world geography" my high school offered, and even then we literally did not touch on the geography of Asia, Africa, or Oceania at all, and even Europe and South America were relative footnotes compared to the level of detail we went into for the US and specifically my state of South Carolina. "World geography", but only if you can get there within a three hour drive, apparently.I guess you aren't teaching that countries can be on more than one continent? Which is ironic given that the US holds territories outside North America. Russia is all Europe up to Vladivostok, Turkey is either fully European or fully Asian, and so on?
I've mentioned these before, but throughout school I'm not sure if I ever once heard the term "Oceania" used and was constantly taught that "Australia is both a country and a continent" and that all other Oceanian islands are "part of the continent of Australia", and also that North America consisted of specifically only Canada, the US, and Mexico - I was taught that Central America was a part of South America.