The details for how long Professor Flitwick has been head of Ravenclaw are not known. It is guessed that he became the head of Ravenclaw around the year 1975. It is assumed that he is still head of Ravenclaw.
Professor Flitwick is the Head of Ravenclaw.
Professor Filius Flitwick teaches Charms at Hogwarts School of Witchcraft and Wizardry. Flitwick is also the head of Ravenclaw house.
There is no 'Fillus Fitwick at Hogwart'. There is however Filius Flitwick at Hogwarts who is the Ravenclaw head of house.
Professor Filius Flitwick.
There is no specific "teacher for Gryffindor". Minerva McGonnagal is the head of the Gryffindor House; on the other hand, different teachers teach different subjects - not to one specific house, but to all the houses.
Professor Filius Flitwick is the Charms Master and the head of Ravenclaw house at Hogwarts School of Witchcraft and Wizardry. He taught Harry, Ron and Hermione the spell 'Wingardium Leviosa' in Harry Potter and the Philosopher's/Sorcerer's Stone.
I don't recall there being one. It goes dumbledore then McGonagall then after them it is the heads of house. (Slytherin) Snape, (Ravenclaw) Flitwick, (Hufflepuff) Sproat, (Gryfindor) McGonagall.
Professor Dumbledore - Headmaster of Hogwarts (1-6) Professor McGonagall - Transfigurations, Head of Gryffindor, Headmistress of Hogwarts (after 7th) Professor Snape - Potions (1-5), Defense Against the Dark Arts (DADA)(6) Head of Slytherin, Headmaster of Hogwarts (7) Professor Sprout - Herbology, Head of Hufflepuff Professor Flitwick - Charms, Head of Ravenclaw Professer Slughorn - Potions (6-7), Head of Slytherin (7) Professor Quarrel - DADA (1) Professor Lockhart - DADA (2) Professor Lupin - DADA (3) Professor Moody - DADA (4) Professor Umbridge -DADA (5) Professor Carrow - DADA (7) Professor Carrow - Muggle Studies (7) Professor Sinistra - Astronomy Professor Babbling - Study of Ancient Ruins Professor Bubrage - Muggle Studies Professor Trelawney - Divination Professor Binns - History of Magic Professor Vector - Arithmancy Professor Hooch - flying Professor Kettleburn - Care of Magical Creatures (1-2) Professor Hagrid - Care of Magical Creatures (3-7) Professor Grubbly-Plank - Care of Magical Creatures (4)
Gryffindor: Professer McGonagall Hufflepuff: Professer Sprout Ravenclaw: Professer Flitwick Slytherin: 1-6 Professer Snape 7 Professer Slughorn ( He was head of house for Slytherin in the 6th book in the few hours after Snape left the castle).
She is a teacher at Hogwarts. The strict but passionate leader of Gryffindor, she is also the deputy head of Hogwarts and the Transfiguration teacher.
Professor Pomona Sprout, the Hebology teacher.
She is a professor of Hogwarts (teaches transfiguration), Head of House Gryffindor, Deputy Headmistress.