A popular and fit physical education teacher at Mary MacKillop College in Canberra died suddenly at age 35.
Jodie Higgins died last week after suffering a pulmonary embolism in her lung.
She was the head of physical education at the college.
Principal Michael Lee said the school was in shock.
Counselling was made available for staff and students.
A rosary held for Mrs Higgins had to be moved to the school hall to accommodate the more than 600 past and present students and friends who attended.
Mrs Higgins had a husband Michael, son Curtis, aged 4, and daughter Zoe, 2.
Mr Higgins had been inundated with messages of support since his wife’s death.
But he said he was focused on helping their young children understand that “Mummy isn’t going to come home”.
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