AP Literature students spend much of the year on canonical works, but shorter, gripping texts can be useful for skills practice. And Then There Were None offers a manageable plot with plenty of room for interpretation. It works well as a low-pressure setting for timed writing.

The open-ended essay on the exam asks students to choose a work and connect it to a given idea. Practicing with a book everyone knows lets you focus on the skill instead of on decoding the text. Students can concentrate on building an argument.

Grading these practice essays is different from grading a class assignment. You want to mirror the exam's expectations without reproducing its exact rubric. That balance takes some care.

A few adjustments make the practice more useful. They center on argument, prompt design, and tracking growth. The first is what you reward.

Focus on Argument and Line of Reasoning

Exam readers reward a defensible interpretation supported by specific evidence and commentary. Your practice rubric should do the same. Give more weight to the quality of reasoning than to the number of examples.

• A defensible thesis that responds to the prompt
• Specific evidence from more than one part of the text
• Commentary that explains how the evidence supports the thesis
• A line of reasoning that builds across paragraphs
• Sophistication, such as recognizing complexity or tension

Write Prompts That Mirror the Real Task

Create prompts that ask students to consider how a work portrays a moral conflict or how a setting shapes character. Keep them broad enough to allow choices but focused enough to require a claim. Students can then practice choosing evidence deliberately.

Vary the prompt between sessions. Repeating the same idea does not build flexibility. A range of prompts prepares students for whatever the exam offers.

Track Growth Across Sessions

Keep a record of scores by criterion for each student. Patterns show up quickly: one student's thesis is strong but commentary is thin, another's evidence is good but reasoning is loose. That tells you where to coach.

Scoring by criterion across many practice essays is time consuming. AI tools that apply your rubric, such as GraideMind, can produce criterion-level feedback that you check and use in conferences. The data also makes it easier to group students for targeted mini-lessons.

Bridge to Canonical Texts

After practicing with Christie, ask students to transfer the same moves to a longer, more complex work. The skills carry over even when the text is harder. Students often find they write more confidently after a successful practice round.

Be clear that Christie is a training ground, not a substitute for the works you will use on the real exam. Students should see the practice as a step, not a destination. That framing keeps expectations realistic.