Research and methods

Last updated November 15, 2026.

This page is two things at once. You'll find how I check a unit before it goes out, and notes on the research I had in mind when I wrote the lessons. I built these units to line up with that work, and each note shows what that looks like in the materials.

What's in the research notes?

You'll find notes on the research I had in mind when I wrote the lessons, from practice testing to background knowledge and disciplinary literacy. I built the units to line up with that work. Each note links to a live Teachers Pay Teachers product line and shows what that looks like in the materials.

Classroom practice notes on feedback, sources, and ACT reading are on the blog.

How do you check a unit before it goes out?

Every unit gets a blind solve, a separate fact audit, and a fix pass before release. The blind solve is done from the student materials alone. The fact audit traces claims to the sources we cite, and the fix pass repairs what those steps find. That's an internal review, not a third-party or official one.

How do the units use this research?

The notes walk through research on practice testing, feedback, background knowledge, and disciplinary literacy. I built these units to line up with that work, so the required content and the hard reading happen in the same lesson. Each note links to a live product line and shows what that looks like in the materials.

How do you handle standards and reading level?

Teacher editions list the literacy and course standards each unit was written to teach. Public crosswalk tables will be added here as they are prepared. Until then, treat the codes in the teacher materials as the verified list. Passages aim at exam-level reading demand, and this site does not make Lexile claims.

What's in the sources and the answer keys?

Units put American or period primary sources first when the topic allows it, and they cite the sources used. Answer keys explain the wrong answers too, and we check them for long letter runs. Internal fact-check logs are working documents. They aren't published on this site.

If something is wrong, it gets fixed and noted. See the corrections log, and write to [email protected] if you find an error.

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