Ann Maguire spent more than four decades at Corpus Christi.
The shrine of flowers and other tributes which lined the school railings are testament to how well-loved and respected she was.
Some of those who were taught by, and taught alongside Ann Maguire, have been speaking to Tina Gelder:
The funeral has taken place today of Ann Maguire, the teacher who was murdered in front of pupils in a classroom in Leeds last month.
As hundreds gathered to pay their respects to the 61-year old who taught three generations at Corpus Christi Catholic College, her husband Don spoke of her passion for teaching.
But he also said she was humble during her decades of service, as she learned so much from the pupils who knew her simply as Miss Maguire.
Lisa Adlam reports:
The cortège for Ann Maguire's funeral has left the church in Leeds.
The coffin was carried out following the hour and 45 minute long service.
Mr Maguire and his family hugged some of the 300 mourners as they followed the pallbearers out of the building.
The congregation gathered outside as the cortege pulled out onto Harrogate Road on its way to a private burial.
Police officers bowed their heads as the hearse drove slowly out of the gates.
Mourners followed the hearse flanked on either side with flowers reading "Mummy" and "Sister".
Mourners have been gathering outside a church in Leeds to pay their final respects to Ann Maguire who was stabbed to death last month.
The 61-year-old had been due to retire in September and her death shocked the community she worked in:
The family of Ann Maguire have arrived at the Catholic Church of The Immaculate Heart of Mary on Harrogate Road for her funeral.
The funeral of teacher Ann Maguire, who was stabbed to death in her classroom in Leeds, will take place today.
Mrs Maguire, 61, was teaching a Spanish class at Corpus Christi Catholic College when she was attacked on April 28. She died in hospital later that day from multiple stab wounds.
She had taught at the school for more than 40 years and was due to retire in September.
Tributes to Mrs Maguire have poured in from across the world. Thousands of them were placed on the railings outside Corpus Christi, stretching 100m from the school gates to the church next door.
Many of the messages were from current and former pupils but others were placed by complete strangers who wanted to register their sadness.
The sentiments were pinned to hundreds of bunches of flowers and other mementos including teddies, school books, football shirts, school ties and guitars.
The funeral mass will take place at the Catholic Church of The Immaculate Heart of Mary, in the Moortown area of north Leeds.
Mourners will be led by Mrs Maguire's husband Don, 62, who is a landscape gardener and former maths teacher, her grown-up daughters Emma and Kerry, and her nephews Daniel and Andrew, who she treated as her sons, having brought them up after her sister died nearly 30 years ago.
The mass will be followed by a private burial.
A 15-year-old boy has appeared in court charged with Mrs Maguire's murder.
He is remanded in custody and will go on trial later this year.
People have started to arrive for the funeral of Leeds teacher Ann Maguire.
The private service, which is for family and close friends only, will begin at midday at the city's Catholic Church of The Immaculate Heart of Mary on Harrogate Road.
The funeral of murdered Leeds schoolteacher Ann Maguire will take place at midday today.
The private service, which is for family and close friends only, will be held at the city's Catholic Church of The Immaculate Heart of Mary on Harrogate Road.
The requiem mass is expected to last up to one and three quarter hours after which the funeral cortege will depart for a private burial.
Sixty one year old Mrs Maguire was stabbed to death at Corpus Christi Catholic College last month.
The family of Ann Maguire have announced that her funeral will be held on Friday. The teacher died after being stabbed during a Spanish lesson at Corpus Christi Catholic College on April 28th.