Upload your master math exam as a PDF and Digital Red Pen generates a structured answer key from it — the literal proof of "you define the standard; the machine applies it." Review and edit the key, then send it to keyed grading or use it to generate parallel exam variants.
Exam Authoring
Upload your test.
Get the key.
No key to write by hand. Upload the master exam PDF, get a structured answer key, review it, and go — into grading, into variants, or both.
Get started →How it works
Upload your master exam
Upload a clean copy of your test as a PDF — the same file you already have, no reformatting required.
The system generates a structured key
The authoring pipeline reads each problem and builds a structured answer key: solution steps, point values, and partial-credit structure for each item.
Review and edit
The key is yours to adjust — change partial-credit weights, add grading notes, mark which problems to hand-grade. You approve the final version before it's used for anything.
Grade or generate variants
Send the key to keyed grading for a per-skill breakdown, or to variant generation for parallel A/B/C versions with matched keys. One master exam, multiple outputs.
What the authored key includes
Structured solution steps
Each problem gets a solution breakdown, not just a final answer — so the grader can award partial credit from the steps, exactly as you would.
Point and partial-credit structure
Point allocations and partial-credit breakpoints for each item, ready to grade against.
Editable before use
The generated key is a starting point, not a locked file. Adjust any problem before the key goes to grading or variants.
Feeds keyed grading and variants
One authored key unlocks keyed grading (with per-skill breakdowns) and variant generation (A/B/C versions with matched keys).
Included in grading
$30
per month · exam authoring, keyed grading, and variant generation included
Get started →Frequently asked questions
What format does the exam need to be in?
Upload your master exam as a PDF. A single clean copy of the test is all you need — the same format you already print for class.
Can I edit the generated answer key?
Yes. The generated key is a structured, editable document. Review each problem's solution, adjust partial credit weights, add grading notes, and approve the key before it goes to grading. You define the standard; the key just codifies it.
How does this connect to keyed grading?
Once your key is ready, it feeds directly into keyed grading. The grader aligns each student's handwritten work to your exact solution and reports a per-skill breakdown across Six Teachable Items, math practices, and item analysis.
Can I use an authored key to generate exam variants?
Yes. Your authored key is also the input for variant generation — the system produces parallel A/B/C exam versions, each with its own matched key, for make-up exams and anti-cheating arrangements.
Is exam authoring included in the grading subscription?
Yes. Exam authoring, keyed grading, and variant generation are all part of the $30/month grading plan.