Persuasive writing for top sets: 'It's all Greek to me!'

Here's a little something to challenge your top students: persuasion the classical way.
The Ancient Greeks worked out how a persuasive speech should be structured to make it effective, Shakespeare played around with the form in many of his most famous speeches and even Barack Obama's speech writers follow the formula.
Along with their connectives and persuasive devices, give your most able a tried and tested structure to lift their persuasive writing above the ordinary.
There's a handout explaining the structure, a PP to test it's been understood and a worksheet to guide preparation for students to write their own speeches.