We were introduced to these special chords in our freshmen general music class. We were not only taught how this chords function within a progression, but we also created our own chord progressions that utilized dominant seventh chords!
After the compositions were created, we then were asked to sing and record our compositions via the application "Acapella." "Acapella" is an application that allows a person to record themselves singing multiple parts and then layer them on top of each other to create a song with multiple voices. This was a great way for us to understand the dominant seventh chords theoretically, and also aurally. It's so cool, because now when I see a dominant seventh chord in a piece, I not only know what it is and how it functions, but I can also hear it and how it resolves in my head.