Grading Essays on the Myth of Er and Plato's Critique of Poetry
Published on September 20th, 2026 by the GraideMind team
The last book of The Republic surprises many students. After hundreds of pages on justice, Plato turns to a sharp critique of poetry and then closes with a story about the afterlife. The shift raises questions that make for excellent essays and tricky grading.

Students who are readers and writers themselves often react strongly to the idea of banning poets. Their essays can be passionate, and that energy is an asset. It also needs to be channeled into a proper reading of what Plato actually argues.
The Myth of Er adds another layer. It is a story told in a work that has just criticized stories, and students have to decide what to make of that tension.
This post covers how to set prompts and evaluate the results.
What a Strong Essay on Book X Demonstrates
A strong response distinguishes between the different objections Plato raises: that imitation is far from truth, that it feeds emotion over reason, and that it shapes character. Students who blur these together miss the structure of the argument.
- Explains the three-level relationship between Forms, objects, and imitations.
- Identifies the psychological concern about emotion and reason.
- Distinguishes Plato's view from a simple call for censorship.
- Addresses the tension between the critique and the use of myth.
- Reaches a reasoned position on whether the argument succeeds.
The most interesting Book X essays notice that Plato tells a story right after criticizing storytellers.
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Try it free in secondsPrompts That Encourage Depth
Ask a question that connects the two halves of the book. "What role does the Myth of Er play in Plato's argument for the value of justice?" pushes students to see the myth as part of the reasoning rather than a decorative ending.
Another option is a modern application, such as whether Plato's concerns about imitation apply to social media or film. Require textual grounding first so the comparison does not overtake the analysis.
Grading Passionate Responses
Emotional essays are fine as long as the reasoning is sound. Reward students who engage with Plato's view honestly, even when they reject it. Penalize dismissals that ignore the actual arguments.
It helps to include a criterion for charitable reading. Students should be able to state the opposing view in a way its defender would accept before criticizing it.
Efficient Feedback for a Complex Topic
Keep your comments focused on whether each objection was correctly identified and evaluated. A checklist tied to the rubric can speed up scoring and make feedback more consistent across the stack.
AI grading platforms can pre-scan essays for these elements, highlighting which papers address the myth and which skip it. You can then focus your reading time on the essays that need a closer look.
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