Usages of am
Wir mussten am Bahnsteig umsteigen, aber der Zug fuhr in Eile ab.
We had to change trains on the platform, but the train departed in a hurry.
Ich sitze am Fenster und lese ein Buch.
I am sitting by the window and reading a book.
Wir besprechen das Projekt heute kurz am Telefon.
We discuss the project briefly on the phone today.
Elon.io is an online learning platform
We have an entire course teaching German grammar and vocabulary.