Ms. Hedgehog's Beginner's Questionnaire bears repeating. Limerick should add it to his "Blog Posts to Read Before You Die".
It's a much better approach (to determine if you're being taught 'properly') than the negatively tuned prior post from Tango-L.
The point is, there are some really crappy tango teachers out there in the world trying to separate you from your money, and leave you with, well, some foul smelling tango.
Hopefully, this flurry of posts, and my newly shut down brand new blog "Tango Teacher and DJ Reviews", will give you some thinking points when evaluating your teacher and workshop options.
Caveat emptor. (Let the buyer beware.)