The year 5 Austinmer Public School student took out first place at the Seacliff Community of Schools public speaking competition on Tuesday.

Up against students from public schools at Helensburgh, Scarborough, Stanwell Park, Coledale, Otford, Thirroul, Bulli and Waniora, Isaac won with his speech on whether the world has changed for the better since the 1960s.

He addressed both sides of the argument, using examples of communication, economics and the changing role of women.

He said the key to a good speech was to maintain your confidence.

"You need a clear voice, eye contact, heaps of expression and not to do what every other person will do."

Assistant principal and event organiser Debbie Hobbs said she was impressed by the standard of the speeches delivered by the students.