I mean, of course we were shown a globe "once". My father had one at home too, though tucked away under a mountain of files and other things in his gigantic cabinet.

But 99% of the time, a kid would see the world via maps in books, notebooks, projected onto the board, etc.

And we didn't have a "geography classroom". We had one classroom for a set number of kids - like 8A, 8B, etc. (where "8" is the class/grade). The teachers would come in and go as per the period. The kids stayed right where they were.