At 80 years of age, Bill Hann has taught six decades worth of students at schools across Western Australia.
Education Minister Peter Collier today paid tribute to Mr Hann's career as the teacher taught his final classes at Rossmoyne Senior High School.
"Over the past 60 years, Mr Hann has taught English, science and physical education in 15 public schools, managed human resources and staffing for the Department of Education, and received awards and scholarships to study in London and New Jersey," Mr Collier said.
"Mr Hann has also seen many changes in education over his time.
"Back in 1957 when he began his career, chalk and a blackboard were the only essential equipment, and there were 50 students in a class."
His earliest students would now be approaching 70-years-old.
Colleagues say Mr Hann has always been a very progressive teacher and was one of the first to embrace technology and computers in the classroom.
"The combination of his educational wisdom and contemporary learning approaches is inspirational," the Minister said.
"After Mr Hann puts down his smartboard controller for the last time, he will be missed by the Rossmoyne Senior High School community and the generations of students who were fortunate to have him as a teacher."
Minister's office - 6552 6300