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Miss Sloan (29), who teaches at St Joseph's Primary School, received the trophy from ACC Minister Nick Smith at a function in Auckland last night.
The awards have grown out of the Attitude TV series, which screens on TV One on Sundays and TVNZ 7 on Thursdays, Fridays and Saturdays.
It was Miss Sloan's second award of the night.
She also won the Spirit of Attitude Award, which recognises an unsung hero who lives life with positivity while facing extreme adversity.
Miss Sloan has juvenile rheumatoid arthritis, a painful inflammation of the joints characterised by swelling, heat and living with chronic pain.
Despite that, she decided at an early age to excel academically and help others.
She hit a low point when she was 15 when a dip in her health meant she needed a wheelchair.
Facing up to the setback, she decided to change her attitude and make a difference with her life.
"I decided from that moment on, that I was going to ace it at school.
I was going to prove everyone wrong and make a name for myself," she said.
After graduating as a teacher in 2002, Miss Sloan immediately began eight months of surgery for joint replacements on her knees and hips.
During her recuperation, she studied for her post-graduate diploma of education and then post-graduate geography.
She began teaching at St Joseph's in 2004 and now also manages the middle syndicate.
Attitude TV presenter Tanya Black, who interviewed Miss Sloan earlier this year, said she always put others first.
When she found out a young mother was about to have her third set of twins, she contacted all her friends who recently had babies and did a drive to collect clothes and sent them to the woman whom she had never met.
She invited a person with Down Syndrome to live with her and helped her to become more independent.
She also helps buddy a girl with an intellectual disability.
Other Attitude Award category winners were Alex Snedden (youth award), Jayne Parsons (courage in sport), Adam Hall (sport performer), Celeste Strewe (artistic achievement), Don McKenzie (hall of fame inductee) and Melrose Kiwi Concept Chairs (employer).