Blog
An AI quiz grader marks a short paper quiz against the answer key you wrote for that sitting. The paper is small: a vocab list, a pop quiz at the bell, an exit ticket on the way out. Students have already circled letters or written a phrase in a blank. You upload the quiz and the key, photograph the stack, get marks against your own answer key, review and toggle feedback, and hand the quizzes back as a PDF or an email.
Graider is the AI red pen for paper grading, a product of DM Liquidity LLC. Teachers photograph the stack, grade on their own rubric or answer key, review and toggle feedback, keep the pen, and hand work back as a PDF or an email. The public site is graider.org. Running a photographed class set starts at AI test grading.
Your quiz. Your answer key. Their papers. You keep the pen.
A short quiz is one sheet, sometimes half a sheet. It might be ten vocabulary items, four multiple choice questions and one short answer, or a single exit prompt with a line for the response. You give it often so the next lesson can start from what the class just showed you.
Weekly vocab is the clearest case. You know the definition, the sentence, or the synonym you will accept. The stack is the whole class, and next week brings a new list. The spelling rule and the points can stay. Only the words change.
Pop quizzes use the items from yesterday's notes, and the key is what you would write on the board if you went over the paper together. Exit tickets are one or two prompts collected as students leave. Handing either stack back the next morning, with your comments on or off, tells you whether the lesson landed before you plan the warm-up.
A longer unit test, with worked problems beside the choices, has its own walkthrough: AI test grader.
Write the key before you photograph, with rows in the order students saw them. Each row needs the item number, the response you accept, and the points printed on the slip.
Equivalents belong on the same row: a definition and a shorter synonym, two spellings of a name, two sentences that both name the cause you taught. Write the points for a near miss when you already give them, and the short comment you would put in the margin.
A rubric helps when the short answer needs a required term or a reason that mentions the example from class. If a misspelled vocab word still earns some of the points, say how many. If you want those rows tighter before you upload, how to write a rubric AI can follow walks through criteria, partial credit, and a worked example.
Have these on the key before the photos:
Plenty of short quizzes mix a row of choices with a blank or two. Four letters, then a sentence. One circled choice and one line of explanation. The answer key covers both before you photograph, so the letter and the phrase are marked from the same sheet.
Multiple choice on a quiz slip is a letter, a filled bubble, or a circled option. Put the letter you accept on the key, and the points that letter earns. When two options are both defensible for this class, write which one earns full credit and what the other earns. If a student circles one letter and writes another beside it, you choose which mark stands before a score goes home.
Short answer on the same slip needs the phrases you will take, written out. A vocab blank might need the word, the definition, or both. If three phrasings are correct in your class, list all three. A near miss can sit on the same row, with the points it earns and the comment you already use when you mark by hand. When a new phrasing shows up on several slips, add it to the key before you release the set.
Most of these quizzes are a single sheet, collected at the bell or as students leave. Photograph every slip a student used, in decent light, with the full sheet in the frame and the name still readable. If someone wrote on the back or crowded a short answer into the margin, include that side in the same set so the short answer stays with the choices.
Use your camera, or photos you already took at the end of the period. A dark, cropped, or blurred slip is worth another photo before you rely on the mark.
Confirm the roster match so each quiz sits with the right student, then mark the stack against the key. You review before anything goes home.
The first pass applies your answer key across the photographed quizzes. Review is where you stay in charge. Open the slips that need a teacher: a changed multiple choice letter, a short answer missing from the key, an exit ticket that names the right idea in words you have not listed, or a page too faint to trust.
Read the mark against the row that produced it. When your judgment and the first pass disagree, change the score. You keep the pen. Toggle feedback on for the comments that should travel with the quiz, and off when you will go over the items with the class.
Hand the marked quiz back while it can still shape the next lesson. Share a marked PDF or email the results. Leave feedback on when comments should travel with the slip. Leave feedback off when the class will correct the items together. You keep the pen until the PDF or the email goes out.
An AI quiz grader marks photographed paper quizzes against the answer key and rubric you provide. Upload the quiz and the key, photograph the stack, review and adjust the marks, toggle feedback, and hand the quizzes back as a PDF or an email. You keep the pen.
Yes. Put each vocab item, multiple choice question, short answer, or exit prompt on your answer key with the response you accept and the points. Graider marks the photographed slips against that key. You review before a score goes home.
List every item in the order students saw it. Include accepted equivalents, the points printed on the slip, and partial credit you already give. Add a common wrong answer when it earns some of the points, with the comment you already write in the margin.
Open changed multiple choice letters, short answers that are new to you, and any slip too faint to trust. Change a score when your judgment and the first pass disagree. Toggle feedback on or off, then release the PDF or the email.
Graider is the AI red pen for paper grading, a product of DM Liquidity LLC. The public site is graider.org.
Photograph the stack, mark it against the answer key you wrote for this quiz, and hand the papers back when you can stand behind the scores. You keep the pen.