Write to Persuade: The Case for Teaching Rhetoric

Introduction

Persuasive writing is the practice of constructing arguments designed to change a reader's beliefs, attitudes, or actions through the deliberate use of evidence, reasoning, and rhetorical strategy. Rooted in the classical tradition formalized by Aristotle in the fourth century BCE, persuasive writing remains one of the most transferable intellectual skills a student can develop — yet it is systematically undertaught in undergraduate curricula in favor of summary, personal narrative, and what composition scholars call "current-traditional" rhetoric, which prizes surface correctness over substantive argumentation. This essay argues that undergraduate writing instruction should place explicit, sustained teaching of classical rhetorical strategies at its center, because students who understand how persuasion works are better equipped to construct original arguments, evaluate the claims they encounter, and participate meaningfully in civic life.

The Rhetorical Foundation Every Student Needs

Rhetoric — the art of effective communication aimed at persuasion — was treated by Aristotle as a productive discipline, as rigorous as logic and as civic as politics. In the Rhetoric, Aristotle identified three modes of persuasion: ethos (the credibility of the speaker), pathos (the emotional engagement of the audience), and logos (the logical structure of the argument). This tripartite framework is not a historical curiosity; it is a practical diagnostic tool. A student who understands logos knows that a well-structured argument requires a defensible claim, sufficient evidence, and a warrant that connects the two. A student who understands ethos can recognize when a source's credibility is being manufactured rather than earned. A student who understands pathos can detect when emotional appeals substitute for evidence rather than supplement it.

Composition scholar Andrea Lunsford has argued, across decades of research and textbooks including Everything's an Argument, that rhetorical awareness is the cornerstone skill of effective writing: students who analyze the rhetorical situation — the audience, purpose, context, and constraints of any communicative act — write with greater precision and persuasive force than those who treat writing as a content-delivery exercise. Yet despite the influence of Lunsford's work, many undergraduate writing programs still organize their courses around genre templates (the five-paragraph essay, the research summary) rather than rhetorical principles. The result is graduates who can fill a form but cannot adapt to an unfamiliar argumentative challenge.

Evidence Integration as the Engine of Argument

The single most common failure mode in undergraduate persuasive writing is a gap between the structure of an argument and the structure of its sentences — students may have gathered credible evidence but cannot integrate it into a coherent logical chain. Evidence integration is not merely a formatting skill; it is an intellectual act that requires the writer to explain why a piece of evidence supports a claim, a move composition pedagogues call "unpacking the warrant." Without this move, evidence sits inert on the page, like a citation that proves the student did research without proving the student did thinking.

The philosopher Stephen Toulmin developed what is now known as the Toulmin model of argument in his 1958 work The Uses of Argument, identifying the claim, grounds (evidence), warrant, backing, qualifier, and rebuttal as the constituent elements of any substantive argument. The model has been widely adopted in composition instruction precisely because it gives students a vocabulary for what good argumentative prose actually does at the sentence and paragraph level. When a student is taught to ask "What is my warrant, and is it one my reader will accept?" they are performing the same analytical work that courts, scientists, and policy analysts perform when evaluating contested claims. Teaching this model explicitly — rather than hoping students will absorb it from reading good prose — produces measurably stronger student arguments, as Toulmin-based composition curricula at institutions from the University of California system to community colleges have documented.

Anchoring evidence to a specific, clearly stated claim also forces students to confront the quality of their sources. As media scholar danah boyd has argued, the ability to evaluate sources critically — what she calls "not just digital literacy, but the capacity to detect whether information ecosystems are being manipulated" — is inseparable from the ability to construct an honest argument. A student trained in evidence integration learns to ask not just "Does this source support my claim?" but "Does this source provide the kind of support my claim actually needs — empirical, testimonial, statistical, or theoretical?" These are the questions that separate advocacy from rationalization.

Rhetorical Strategy and the Ethics of Persuasion

Critics of explicit rhetoric instruction sometimes raise an ethical objection: teaching students to be more persuasive is teaching them to be more manipulative. This concern deserves a serious hearing. Propaganda, advertising, and political spin are all products of rhetorical sophistication deployed without ethical constraint. If rhetoric instruction simply produces more effective manipulators, the social cost might outweigh the educational benefit. This is the strongest version of the opposing argument, and it should not be dismissed.

The rebuttal, however, is both historical and structural. Aristotle himself was aware of the dual-use character of rhetoric: a person who understands how manipulative arguments work is better positioned to identify and resist them. Contemporary communication scholar Kathleen Hall Jamieson has made this point with particular force in her research on political advertising and public reasoning, arguing that citizens who understand the conventions of persuasive communication — including techniques like framing, selective emphasis, and emotional priming — are significantly harder to deceive than those who encounter these techniques naively. Jamieson's work on what she terms "inoculation" against misleading messaging suggests that rhetorical education functions less like a weapons program and more like a vaccination: it raises the population's resistance to bad-faith persuasion precisely by making the mechanisms of persuasion visible.

The ethical dimension of this argument also has a curricular implication. When rhetoric is taught alongside epistemology — when students learn not just how to argue but what counts as good evidence and why — the discipline becomes self-regulating. The philosophy of knowledge, as developed from Plato through contemporary analytic philosophy, provides exactly this grounding: it asks what distinguishes justified belief from mere opinion, and it equips students to hold their own arguments to that standard. An undergraduate writing course that integrates basic epistemological questions — "How do I know this? What would it take to be wrong?" — into its rhetorical training produces students who are more persuasive and more intellectually honest, not one or the other.

Civic Consequences of Rhetorical Illiteracy

The stakes of this argument extend well beyond the classroom. Misinformation has become one of the defining challenges of contemporary public life, and the evidence increasingly suggests that the population most vulnerable to misinformation is not the least educated in a credentialing sense, but the least trained in critical evaluation of arguments. A 2016 Stanford History Education Group study led by Sam Wineburg found that a majority of middle school, high school, and college students across the United States struggled to distinguish sponsored content from news, evaluate the credibility of social media sources, and identify when a photograph had been decontextualized. The study did not conclude that students were unintelligent; it concluded that they had not been taught the evaluative skills they needed.

Those evaluative skills are, at their core, rhetorical skills. The ability to ask "Who is making this argument, for what audience, with what evidence, and what do they stand to gain?" is the same skill Aristotle packaged as ethos and logos. When students graduate without this capacity, they enter a public sphere where they are systematically outmatched by professional persuaders — political operatives, advertisers, algorithmic content systems — who understand rhetorical strategy in granular detail. As political theorist Danielle Allen has argued in her work on democratic citizenship and education, a democracy depends not just on informed voters but on citizens capable of constructing and evaluating the public arguments through which collective decisions are made. Rhetorical education is, on this view, not an amenity of liberal education but a prerequisite for democratic participation.

The counterargument here — that civic education, not writing instruction, is the appropriate vehicle for these skills — underestimates the degree to which writing is thinking made visible. When students are required to construct a written argument, defend it against objections, and revise it in response to evidence, they are doing precisely the cognitive work that democratic deliberation requires. A stand-alone civics course that assigns readings about democracy without requiring students to argue positions in writing produces passive knowledge, not active competence. The writing classroom, when organized around rhetorical principles, is the most efficient and scalable site for this kind of intellectual formation.

Conclusion

The argument for placing explicit rhetorical instruction at the center of undergraduate writing education rests on three converging pillars: it equips students to construct original, logically coherent arguments; it trains them to evaluate the evidence and persuasive strategies they encounter; and it prepares them for the demands of democratic citizenship in an information environment that punishes rhetorical naivety. The expressivist concern about voice and authenticity is real but surmountable — the most powerful persuasive writing is both structurally disciplined and genuinely felt, and the job of composition instruction is to develop both capacities, not to choose between them.

What is at stake if we get this wrong is not merely a population of weak writers. It is a citizenry that can be persuaded of almost anything by anyone who has studied persuasion seriously. The asymmetry between professional communicators — political campaigns, algorithmic platforms, advertising industries — and untrained readers is already severe. Every year that writing instruction prioritizes surface correctness over rhetorical depth widens that gap. Aristotle understood that the capacity to perceive the available means of persuasion is a form of power. The question is whether that power will be distributed broadly, through education, or concentrated narrowly, in the hands of those who already hold it. The answer to that question begins in the writing classroom.

Undergraduate writing programs that adopt explicit rhetorical frameworks — Aristotle's appeals, Toulmin's argument model, Jamieson's insights on inoculation, the epistemological habits that separate justified belief from motivated reasoning — will produce graduates who are not simply better writers but better thinkers and more capable citizens. That outcome is worth organizing a curriculum around.