AI Biology Grader for Handwritten Answers
Proctor AI is an AI biology grader that reads a whole class of handwritten biology answer sheets and scores each against your rubric. Biology is heavy on labelled diagrams and precise terminology, so grading needs to read both.
Upload one PDF, type a prompt or attach your marking scheme, and get every paper graded in minutes, with you in control of every result.
- 93% agreement with manual grading
- 10 sec average time per paper
- 97% less time spent marking
- 2,000+ teachers using Proctor AI
What grading biology involves
Biology answers rely on labelled diagrams, precise terminology, and structured descriptions of processes. Proctor AI checks diagram labels and term accuracy against your rubric.
What the Biology grader can grade
| Answer type | How Proctor AI grades it |
|---|---|
| Labelled diagrams | Checks expected labels and their placement |
| Process descriptions | Scores step coverage against the rubric |
| Terminology | Rewards correct, precise terms |
| Descriptive answers | Grades point coverage and clarity |
| Reasoning questions | Checks the explanation, not just the conclusion |
- Labelled diagrams of cells, organs, and systems
- Process descriptions like photosynthesis and respiration
- Definitions and terminology
- Diagram-based reasoning questions
- Long-form descriptive answers
How it works
- Upload the class: Drop in one PDF of the answer sheets. The agent splits individual papers automatically.
- Set the rubric: Type a prompt describing how to grade, or attach your existing marking scheme.
- Let it grade: Each answer is read and scored against the rubric in seconds per paper.
- Review and approve: Check the marks and feedback, adjust anything, and approve. Nothing is final until you say so.
Frequently asked questions
Can AI grade biology answers?
Yes. Proctor AI reads handwritten biology answers, biology is heavy on labelled diagrams and precise terminology, so grading needs to read both. It grades each against your rubric and you approve every mark.
Does it grade labelled biology diagrams?
Yes. Proctor AI recognizes labels on biology diagrams and grades them against the parts your rubric expects.
How accurate is biology grading?
Proctor AI reaches around 93% agreement with manual marking, and because you review and adjust every mark, the final result is always teacher-approved.
Is the Biology grader free to try?
Yes. There is a free plan so you can grade a real set of papers before deciding.