An AI tutor for the SAT questions you got wrong
TestPrep AI Tutor is a voice tutor for SAT practice-test mistakes. After a practice test you choose a question you got wrong; the tutor already has the question, your answer and the correct one, and works through it with you on a shared whiteboard with the Desmos calculator open. It gives hints before answers, records what kind of mistake it was, and your first 2 wrong questions are free.
How a session starts
- 1
Finish a practice test
In the TestPrep simulator on this site, under real timing.
- 2
Open your results
Every question you got wrong or left blank is listed.
- 3
Choose one and press Start with AI Tutor
The lesson opens on that question, already knowing what you answered.

Four things open at once
You think out loud
A shared whiteboard
The exam's Desmos
It names the mistake
Hints before answers, one rung at a time
- 0
Watches
If you are working, it stays out of the way.
- 1
Try again
“Have another look at the answer choices.”
- 2
Points
“Read the second sentence of the passage again.”
- 3
Asks
“Are we solving for x here, or for 2x?”
- 4
Targeted hint
“There is a sign slip. What happens when the minus moves across?”
- 5
Shows one step
It writes that step on the board and hands the rest back to you.
- 6
Full solution
Only once the guided attempts are used up, or when you ask for it.
Every question leaves a short record
- missing concept
- algebra
- arithmetic
- sign
- distribution
- formula
- graph reading
- misread question
- units
- calculator entry
- answer-choice trap
- incomplete reasoning
- carelessness
Free trial
First 2 mistakes
Work your first 2 wrong questions through with the tutor. No card is needed, and nothing happens if you decide not to continue.
Take a practice testAfter the trial
€3.46per 30 minutes
- Unused minutes stay on your account and carry into your next test.
- Buy up to 8 blocks in one purchase.
- Sold separately from lessons, courses and practice test packs.
AI tutor FAQ
Take a practice test, then fix what it shows
The simulator gives you the score and the list of mistakes. The AI tutor helps you work through them while they are still fresh.
