I'm looking for a detailed (or as much detailed as possible) syllabus for Argenine tango classes. Ideally, it will include short descriptions of elements and learning goals for each lesson.

I suggest you log onto expertvillage.com and watch their series of one-minute instructional tango videos, each one focuses on a different skill, you could make up your own list based on that. Good luck - I think the list of Argentine tango skills is endless, because there is so much improvisation, but I would love to see the results you come up with.