The Spanish and RE teacher was stabbed in the neck by a pupil. The 15-year-old student has since been charged with the murder of the mother of two.
Mrs Maguire was just months away from retiring after working at Corpus Christi Catholic school for over 40 years.
Pupils remembered her a week on from her death with a minutes silence.
Students from the school, along with their families, released hundreds of coloured balloons into the sky as a mark of remembrance.
Since the teacher’s death, hundreds of cards and bouquets of flowers have been laid outside the school by parents, pupils and former students.
One of the cards simply read: ‘Thank you for everything, heaven's gained another angel.’
Another read: ‘#AforAnne.’ The message referred to a promise made by the teacher’s students to achieve ‘A’ grades in their upcoming exams.
The remembrance event also played host to a charity football match, which saw players sporting shirts emblazoned with their late teacher’s name.
The school is hoping to raise enough money to create a permanent memorial for Mrs Maguire.
Former pupil Sheardon Nicholson, who organised the event, said: ‘We’re hoping to get some money together to get something to remember Mrs Maguire by.’
Mrs Maguire’s alleged killer is set to appear on trial for her murder in November.