Assigning a comparison of Hobbes, Locke, and Rousseau is a popular way to test whether students grasp the social contract tradition. The trouble is that many comparison essays turn into three mini book reports stacked on top of each other. Students describe each thinker in turn and never actually compare anything. Grading these papers fairly means rewarding analysis that sets the thinkers against each other, not summaries that happen to sit side by side.

A strong comparison essay organizes itself around shared questions instead of around the thinkers. For example, a student might ask what each author believes about the state of nature, why people leave it, and what makes political authority legitimate. Under each question, the student places Hobbes, Locke, and Rousseau in conversation, noting where Hobbes sees fear driving people toward a strong sovereign while Rousseau sees corrupted inequality demanding a new form of association. That structure is the single clearest sign of real comparative thinking.

Your rubric should make that expectation explicit so students are not left guessing. Include a criterion that rewards organization by question or theme and a lower descriptor for essays that handle each thinker in isolation. Students who read the rubric before writing often restructure their outlines immediately. This small change tends to improve the quality of the entire assignment.

Scoring accuracy without over-rewarding summary

Accuracy is necessary, but it should not carry most of the grade. A student who correctly states that Locke emphasized natural rights to life, liberty, and property has shown knowledge, but the essay earns higher marks only when that fact is used to explain a contrast with Rousseau's emphasis on collective sovereignty. Build the rubric so that factual correctness is a baseline expectation, while analytical comparison drives the upper score bands. This prevents the common problem of summaries earning an A.

• Organizes the essay around shared questions rather than separate thinkers
• Represents each author accurately and fairly
• Identifies a meaningful point of disagreement, not just difference
• Uses short, well-chosen textual evidence from each work
• Reaches a conclusion about which view is most persuasive and why

Feedback that pushes students from summary to analysis

The most common comment on these papers should be some version of a question: how do these two views actually clash? Writing that question in the margin next to a descriptive paragraph invites the student to find the tension on their own. Compare it with a flat note like "needs more analysis," which gives no direction and often frustrates students. Specific questions give them something concrete to answer in revision.

AI-assisted feedback can generate those questions at scale, tailored to the content of each essay. When the tool notices that a paragraph on Hobbes is followed by a paragraph on Locke with no connecting analysis, it can suggest where a comparison belongs. Teachers can then review and adjust the suggestions before returning papers. The combination keeps feedback thoughtful even when you are handling a hundred essays.

Making the grading process consistent across sections

If several teachers share the assignment, calibration is essential. Choose three sample essays at different quality levels and have everyone score them independently, then discuss any disagreements. You will usually find that the debate centers on how much credit analytical comparison deserves relative to accurate summary. Resolving that question once, in writing, prevents students in different sections from receiving unequal treatment.

Keep the calibrated samples for future years, with identifying details removed. They make excellent teaching tools, since students can see what a thoughtful comparison looks like before attempting one. They also help new teachers understand the standard quickly. A shared set of examples is one of the cheapest ways to improve grading quality across a department.