How did the Sophists teach argument and public speaking in ancient Athens?

In ancient Athens, the Sophists taught argument and public speaking by providing a practical education designed to facilitate success in the city’s democratic political life. Because Athenian citizens needed to impress audiences in the council and assembly to advance their careers, the Sophists offered specialized training in rhetoric and the art of oratory.1

Their pedagogical approach included several key methods:

• Instruction in Argumentation: Sophists taught students how to construct arguments and defend or attack a thesis. This often involved the use of "antilogic," where pupils were trained to assign a counterargument to any proposition, effectively analyzing complex situations or silencing opponents.123
• Linguistic Precision: Recognizing the importance of language, they taught grammar and the careful definition of terms. For example, Prodicus focused on distinguishing the meanings of apparent synonyms, a practice that influenced later thinkers like Socrates.12
• Broad Curriculum: While rhetoric was central, their instruction was wide-ranging, covering subjects such as poetry, mathematics, music, astronomy, and the physical sciences, which provided students with the intellectual tools necessary for persuasive public discourse.1

By demanding that claims be justified by reason rather than tradition, the Sophists played a foundational role in developing the techniques of argument that became central to Greek thought.12