Mrs Hayward said she started working at the school about 25 years ago, having joined the Education Department eight years earlier.
She retired last term to spend more time with her retired husband Fred and grandchildren.
Mrs Hayward said she had enjoyed all the friendships made with staff and children, and making a difference.
“The children and staff have been highlights – I will be down at Hillarys and kids come up and hug me because they recognise me,” she said.
“We have a lovely school here. Lots of primary schools have popped up around us.”
Principal John Nowicki said she had been at the school for much of its 35-year history.
“Her dulcet tones have set the standard of communication through our reception,” he said.
“Karen has grown with three cohorts of children who commenced in kindy and left after Year 7 and her attention to detail was to be admired.”