How to Design Assessments AI Can't Fake
AI-proof assessment, made realistic: assess process, anchor tasks in class-only material, add short oral checks and grade judgment so faking is pointless.
Last updated 9 min read
Key takeaways
Most of what makes AI useful in a classroom comes down to patience at scale. One teacher with thirty students cannot re-explain a concept five ways to five students in the same minute, or answer a question at nine in the evening before a test. An AI tutor can do both, and it does not tire of the fourth rewording of the same question. That makes it a good fit for re-explanation, practice questions, examples pitched at a different level and the questions students are embarrassed to ask out loud.
AI also helps on your side of the desk, provided you check its output before students see it. It can draft practice questions at three levels of difficulty, rewrite a reading passage more simply for a student who is struggling with the vocabulary, or suggest a fresh example for a concept you have taught the same way for years. Treat everything it produces as a draft: correct errors, cut what does not suit your class and keep the final decision on what gets taught.
It is a poor fit for the parts of teaching that depend on knowing the student. It does not notice that a usually talkative student has gone quiet, it cannot judge whether an essay shows growth for this particular writer, and it has no stake in whether anyone turns up tomorrow. The guide on what AI tutors are good and bad at covers that division in more detail. The practical rule is simple: hand the AI repetition and keep judgment.
Students will use AI whether or not you mention it, so silence is a policy too, just an unclear one. A written policy of one page at most tells them where the lines are in your subject and saves arguments later. Check first what your school or district already requires; your classroom rules should sit inside that, not contradict it.
Read the policy aloud with the class and show one example of acceptable and unacceptable use on a real assignment. The guide on where the line falls between AI help and cheating is written for students and works well as a handout.
The most useful design rule is attempt first, ask second. When a student asks an AI tutor before trying, the tutor does the thinking. When they ask after a genuine attempt, the tutor responds to their thinking, and that exchange is where the learning happens. Each routine below builds the attempt into the structure, so you do not have to police it.
Students write a three-sentence explanation of a concept in their own words, then ask the tutor to point out anything wrong or missing. They revise and hand in both versions, so you can see exactly what changed and why.
In history, English or ethics, students take a position and ask the tutor for the strongest objection, then write a reply. This trains counterargument and stops the tutor being treated as an oracle.
Project an AI answer containing a planted mistake, such as a misdated event or a wrong step in a proof. Groups find it, explain why it is wrong and say how they would have caught it on their own.
Five minutes before the bell, each student asks the tutor about one thing that still confuses them and writes the answer in their own words. Reading those questions tells you what to reteach tomorrow.
Here is how those routines fit into one lesson, using osmosis in a high school biology class as the example. The shape transfers to most subjects: replace the demonstration with a primary source, a worked problem or a short text.
Notice that the AI occupies roughly ten minutes of the fifty. The prediction and the unassisted check bracket it, which gives you evidence of what students understood both before and after their tutor conversation.
The table gives a starting split for common classroom jobs. Adjust it for your students' age, your subject and your school's rules.
| Classroom job | Where an AI tutor helps | Where you stay in charge |
|---|---|---|
| Explaining a concept again | Rewording at the student's pace, at any hour | Spotting which misconception sits behind the confusion |
| Practice and review | Extra questions and checks on routine answers | Choosing what to practice and when to move on |
| Feedback on drafts | Flagging unclear sentences and missing steps | Judging argument quality and growth over time |
| Grading | Not recommended for grades that count | Every grade that counts |
| Differentiation | Simpler or harder versions of one explanation | Deciding who needs which version |
| Motivation and well-being | Very little | Relationships, encouragement, noticing when something is wrong |
AI tutors can state wrong things fluently, and students tend to trust a confident tone. Make checking a habit rather than an afterthought. A tutor grounded in a specific course or text is easier to check, because there is a definite source to compare against; a general chatbot answering from its training is harder.
Three habits are worth drilling. Ask where an answer comes from and look at that page. Ask the same question a different way and compare the two answers. And confirm any fact that matters, such as a date, a formula or a quotation, in the textbook before using it. The guide on how students can catch AI hallucinations is a ready-made lesson on this.
Every Cavua course includes a 24/7 AI tutor that students can video call, voice call, chat with or ask for an audio summary, and it answers from that course's own syllabus, lessons and tests rather than the open internet. Courses are divided into chapters and lessons with chapter and lesson tests whose results are saved, so practice leaves a record.
If you teach from your own material, you can upload notes or a PDF as an author and have a syllabus, lessons and tests built from it, which you edit and approve before Cavua's team checks it for publishing. Students can also upload their own documents to their Work space to research, chat, use “Quiz me” or call the tutor about them. What each membership includes is set out on the pricing page, and enrollment is by invitation for now.
Usage is not evidence. A class that asks the tutor hundreds of questions may be learning a great deal or outsourcing everything. The real test is what students can do without it: short unassisted quizzes, explanations written in class, a quick oral question. Compare those with what you saw on similar material before you introduced the tutor.
Also read the questions students ask. Questions that grow more specific over a unit, such as “why does water move toward the salt?” rather than “explain osmosis,” suggest growing understanding. Requests for finished work suggest dependence, and that student needs a conversation, not a new rule. If you are rethinking assignments too, see how to design assessments AI can't fake.
AI-proof assessment, made realistic: assess process, anchor tasks in class-only material, add short oral checks and grade judgment so faking is pointless.
Use it for the jobs that need patience at scale: re-explaining a concept in different ways, generating practice questions, giving students somewhere to ask questions outside class hours, and checking explanations they have written. Keep grading, judgment about individual students and decisions about what to teach next with you, and build routines where students try a task before they ask the AI.
Usually yes, within clear rules. Students already have access to AI outside school, so a classroom policy that names which tasks allow it and how to disclose it teaches responsible use better than a ban that cannot be enforced. Check your school's own policy and each tool's age and data terms first.
The main ones are students handing over thinking they should be doing themselves, wrong answers stated confidently, and personal data shared with tools nobody approved. Each has a practical answer: attempt-first routines, a habit of checking answers against the source, and a short policy listing approved tools and what must never be pasted in.
It can flag surface issues such as unclear sentences or a missing step, but grades that count should stay with a teacher. Grading involves judgment about the individual student, the purpose of the assignment and fairness across a class, and a grade is a decision you need to be able to explain and defend to students and parents.
Design tasks where copying does not help. Require an attempt before any AI use, ask for both the original and the revised version, include short unassisted checks in class, and ask students to explain their work aloud. When the visible process is part of the grade, a pasted answer earns very little.
It depends on the tool's age requirements, your school's rules and how closely use is supervised. Younger students generally do better with structured, teacher-led use, such as a whole-class error hunt on a projected answer, than with open-ended individual chat. Always check a tool's terms for minimum ages before introducing it.
Every Cavua course comes with a 24/7 tutor you can video call, speak to or chat with — on the material you are actually studying.