Defense Against the Dark Arts classes: 
1st through 7th years

Classroom: 
Uncertain, although it has windows, since the pixies broke them to escape. It also has an iron chandelier, or did until it fell from the ceiling under the weight of Neville hanging by his ears.

Curriculum and classroom activities:
The teacher for the first year is Professor Quirrell.  Hagrid says (paraphrasing) that he was alright until he took a year off to get some practical learning.  The classroom smells strongly of garlic, said to be protection against a vampire he'd met in Romania and feared was coming back to get him.  The turban was supposedly given to him by an African prince because he'd gotten rid of a zombie.  When Seamus asks him to tell them how he fought off the zombie, he changes the subject.  There's a funny smell hanging around the turban, too.  It's said to be garlic, but... 

The Curse of the Bogies, which he supposedly teaches them has an effect that's unknown. 

Lockhart is the 'teacher' in Harry's second year.  He brings Cornish Pixies to class, but can't handle them (the spell 'Peskipiksi Pesternomi' is not really a spell).  He talks (and writes!) a lot about the things he's done, but when it comes right down to it, he's just a sham.  They do cover the Homorphous Charm, which turns a werewolf back into a person, and the Babbling Curse (effects are not given), but how much they learn is dubious, since he really didn't do anything he claims to have done. 

Remus Lupin teaches them Harry's third year, and from the beginning, he proves himself to be a different breed. They study Dark Creatures their third year.  The first class is hands-on as they battle a boggart.  He also brings a grindylow to class so that they can observe it.  They cover hinkypunks, kappas, red caps, vampires and werewolves in the year. Their final exam is a practical one, an obstacle course with some of the creatures they'd studied. 

The fourth year brings yet another teacher, Alastor Moody (ok--Barty Crouch, jr. polyjuiced).  Although they are only supposed to be learning  counter-curses (per MoM regulations), Moody covers the Unforgivable Curses, demonstrating with spiders.  This is not taught until 6th year, but he says that Dumbledore wants them to learn what they're like.  He puts the Imperious Curse on each of them in turn until they can fight it off.

Assignments given out:
essay on vampires -