A persuasive essay assignment built around The Screwtape Letters asks students to move beyond analyzing what Lewis argues and toward constructing their own original argument about temptation, moral choice, or human psychology, using the novel as supporting evidence rather than as the sole subject of analysis. This kind of assignment differs meaningfully from a standard literary analysis essay, since students need to develop and defend their own claim rather than primarily interpreting the author's claim. Grading these essays requires attention to the strength and originality of the student's own argument, not just their accurate understanding of the source text.

A well-designed persuasive prompt might ask students to argue whether small, everyday temptations or large, dramatic moral failures pose the greater danger to a person's character over time, using Screwtape's specific advice as evidence for their position. This kind of prompt gives students genuine room to disagree with each other and even, potentially, to push back against Lewis's own apparent position, which produces more engaged and original writing than a prompt simply asking students to summarize what the book says about temptation. Students defending either side of this question need to cite specific passages, making the assignment rigorous even as it grants genuine interpretive freedom.

It is worth explicitly telling students that disagreeing with Lewis's apparent position, provided they support that disagreement with solid reasoning and textual evidence, is entirely legitimate within this kind of persuasive assignment. Some students assume that literary analysis always requires agreeing with or simply explaining an author's argument, and giving them explicit permission to push back opens up considerably more interesting and original essays. A student who argues that Lewis actually understates the danger of dramatic moral failures, citing specific counter-evidence from the text or from outside experience, demonstrates a genuinely sophisticated and independent engagement with the material.

Balancing Textual Evidence With Original Argument

The central grading challenge for this kind of assignment involves balancing two distinct criteria: how well the student understands and accurately cites the source text, and how well the student constructs and defends their own original claim about the broader question. An essay might demonstrate excellent understanding of Screwtape's specific arguments while presenting a fairly thin or underdeveloped original position, or conversely present a genuinely interesting original argument while misreading or oversimplifying the source material to fit that argument. A rubric that scores these two dimensions separately, rather than collapsing them into a single holistic grade, gives students clearer feedback about which specific area needs the most development.

• Clarity of the student's own original claim, distinct from a summary or restatement of Lewis's apparent argument
• Accuracy of textual citation, ensuring evidence from the novel is represented fairly and in proper context
• Quality of reasoning connecting the cited evidence to the student's specific persuasive claim
• Consideration of counterarguments, including any tension between the student's position and the text itself
• Overall persuasive force, meaning whether a skeptical reader would find the argument genuinely compelling

Common Pitfalls in Student Persuasive Writing

One recurring problem in this kind of assignment is students who default back into literary analysis mode partway through the essay, drifting from building their own argument into simply explaining what Screwtape says without connecting it clearly back to their own persuasive claim. This drift often happens because analyzing the text feels more familiar and comfortable to students than constructing and defending original reasoning, especially for students newer to persuasive writing as a genre. Teachers can address this by requiring students to explicitly restate their own claim at the start of each body paragraph before introducing any textual evidence, which keeps the persuasive throughline visible throughout the essay.

Another common issue involves students citing evidence from the novel without fully considering whether that evidence actually supports their claim or merely relates to the same general topic, which produces essays that feel loosely connected rather than tightly argued. A passage about Screwtape's advice regarding pleasure, for instance, might be relevant to a general essay about temptation without directly supporting a specific claim about whether small or large temptations pose greater danger. Training students to ask explicitly whether each piece of evidence proves their specific claim, rather than just relating to the general topic, tightens the overall argumentative structure considerably.

Providing Feedback That Strengthens Argumentation

Feedback on persuasive essays should distinguish clearly between comments about the student's understanding of the source text and comments about the quality of their independent argumentation, since conflating these two areas in feedback can leave students unsure which skill actually needs the most attention. A comment noting that a student's reading of a specific passage was accurate but that the connection to their overall claim needed more explicit reasoning targets the argumentation skill specifically, which is the primary focus of this kind of assignment. This precision in feedback helps students understand that strong literary comprehension alone is not sufficient for a genuinely persuasive essay.

Teachers should also look for and reward genuine intellectual risk-taking in these essays, since students who venture an original or even contrarian position, provided it is well supported, are demonstrating exactly the kind of independent thinking this assignment is designed to cultivate. A safe, predictable essay that simply agrees with the most obvious reading of the text should not necessarily score higher than a riskier essay that stakes out a more original claim and defends it competently, even if that original claim is ultimately less conventional. Communicating this value for intellectual risk explicitly encourages students to engage more genuinely with the assignment's persuasive purpose.