Yes, Severus Snape taught potions in the first five books. In the sixth book he became the Defence Against the Dark Arts teacher and in the final book he was the headmaster.
Severus Snape is the potions teacher in most of the books. In the sixth book that position is taken by Horace Slughorn.
In the first five books, Severus Snape was the Potions master. In book six Horace Slughorn took over the position.
In Order of the Phoenix, Professor Snape teaches Harry Occlumency and Harry's least favourite, Potions.
Severus Snape teaches Potions class.
Horace E. F. Slughorn returned to his previous post as Potions Master after Severus Snape was given to position of Defence Against The Dark Arts teacher in Harry Potter and the Half-Blood Prince.
The owner was Professor Severus Snape! The one with nasty greasy hair! haha
Severus Snape
Severus Snape
Severus Snape Horace Slughorn
Severus Snape.
Professor Severus Snape starts out as the Potions master and Head of Slytherin House. Professor Minerva McGonagall is the Transfiguration teacher and Head of Gryffindor House.
Professor Severus Snape is the Potions master. He remains the Potions master until 'the Half-Blood Prince', where he is taken over by Professor Horace Slughorn, and then Snape becomes the Defence Against the Dark Arts teacher.