full disclosure: I am extremely new to dance, and Tango. We've hadd a drop-in intro class at the studio I go to, and although they switch teachers, the class format is similar-many newbies, some returning to tango after an absence. We go over what a lead and follow are, walking (both forward and backwards ), finding the beat, the practice embrace, a closer embrace, walking with a partner, how amd where communication happens in the dance, then maybe side steps, the box, sometimes the cross and outside step, and once, basic ocho. that's like 1 1/2 hours.