In an early lession, there is the extra vocabulary:
“Er trifft sie am Flughafen”.
Yet, I don't see anyplace in levels 1, 2, or 3 where the “am” is really explained in context. The extra vocab section doesn't seem to offer grammar explanations.
I'm assuiming the “am” is the Dative for “Der Flughafen”, but it's disconcerting when it's not explained.
Did I miss this explanation?
Thanks in advance,