Some of the most interesting Things They Carried assignments happen when English and history classrooms overlap. Students read O'Brien's stories alongside letters, speeches, news reports, and government documents from the Vietnam era. The pairing raises questions that neither subject can answer alone.

The essays that result blend two skill sets. Students must analyze a literary text and interpret historical documents, then build an argument that draws on both. That is demanding work, and it can be difficult to grade if your rubric only covers one discipline.

Co-teachers face an extra challenge. English and history teachers often weigh evidence differently, and a shared assignment needs a shared standard.

This post explains how to build a rubric for document-based essays that include a novel, how to handle source analysis, and how to keep grading manageable when two subjects are involved.

Build a rubric that covers both kinds of evidence

Start with a familiar structure, like a document-based essay rubric, and add a row for literary analysis. Students should use the primary sources for historical context and the stories for insight into experience. Strong essays explain how each type of source reveals something the other cannot.

• States a thesis that draws on both the fiction and the primary sources
• Analyzes the source of each document, including author, audience, and purpose
• Uses passages from the book to show individual experience, not just facts
• Explains where a document and a story agree or conflict
• Avoids treating the novel as a historical record of events

Watch for the fiction-as-fact trap

Students sometimes cite the book as proof of historical claims. Since O'Brien openly plays with truth and invention, this is a weak move. A good comment reminds them that fiction can illuminate experience but cannot serve as documentation.

This is also a chance to reinforce the book's own theme about the difference between what happened and what feels true.

Coordinate grading between teachers

If two teachers are scoring the same essays, agree on how to split the work. One approach has the English teacher score literary analysis and the history teacher score source analysis, then average or combine the results. Calibrating on a few sample essays first prevents disagreement later.

Share a single rubric document so students receive one consistent set of expectations.

Reduce the load of long, evidence-heavy papers

Document-based essays are long and require checking evidence from multiple sources. A tool like GraideMind can read each essay against your combined rubric and draft comments on the thesis, use of sources, and analysis. You review the output and add the discipline-specific insights that come from your expertise.

For teams working across subjects, having a shared rubric applied consistently also makes it easier to compare results and refine the assignment for next year.