didn't know duolingo started using slang )
Why is "am Mittagessen" not correct as well?
We don't say that. "at lunch" - beim Mittagessen | "for lunch" - zum Mittagessen
i thought 'am' was the singular "at the: and 'beim' was the plural form, that wrong i guess
"beim" is the contraction of "bei dem"
Thanks, that is helpful.
In this same series of questions, Duolingo uses "am Mittagessen" as the correct response. Why?
I don't think "am Mittagessen" is correct, it sounds completely odd to me.
Shouldn't "bei dem Mittagessen" be accepted here?
It should probably be accepted, but it's more than common to use the contraction - also in written form.