ARIA is presenting at the Khan Lab School AI in Education SummitOctober 24 · Mountain View
Teacher activity

Built for independent thinking

ARIA math tutor

Work through math one step at a time. ARIA checks your work and offers hints while you work toward your own answer. Explore the examples, then tell us when you would step in to help.

Try the 2-minute activity See ARIA in action
One step. The right amount of support.Example interactions

Student workspace

Solve for x: 5x - 3 = 2x + 9

Latest student step

3x - 3 = 9

Valid intermediate step
ARIAWatching

ARIA stayed quiet.

The step is valid. The student can keep working.

These are logged examples, not a live tutoring session.Try eight student moments →

The tutor

Quiet while the math is moving. One small hint when it is not.

Each step a student types is checked symbolically. A right step gets no interruption. A verified wrong step can earn one hint that points at the next move, never the answer.

How a step is checked

Screenshots of the summit demo, tag summit-2026-10-24-pace.

The ARIA demo in the Watching state: a wrong step at 15% risk, below the Balanced bar, so the hint is held.
Watching Wrong step, risk 15%, below the Balanced bar of 19%: ARIA holds the hint.
The ARIA demo in the Stepping in state: after wrong steps and a risk of 25%, the Balanced setting gives a hint.
Stepping in Wrong step, risk 25%, Balanced bar 19%: one hint.
The teacher summary tab: a timeline of each turn, where the student got stuck, and the hints given.
Teacher summary of the same session. Open full size

For educators

When would you step in?

Look at eight moments from a student’s math work. Choose when you would offer help, then compare your decisions with ARIA’s.

Try the teacher activity

Bring your classroom perspective.

The activity takes about two minutes. Your responses stay in your browser unless you choose to download and share them.

Interested in helping shape a classroom evaluation? We would like to hear what you would want to test.

Start a conversation →

Behind the tutor

Good help is also about timing.

ARIA-Pace explores the tradeoff between offering a hint too early and leaving a student waiting too long. Our research compares timing policies using historical student logs.

Explore the timing research →See how ARIA works →

Where the evidence stands

No study with students has been run.

  1. DoneA timing model fit on public student logs and replayed on a locked test.
  2. PlannedStudent interviews, then small prototype sessions, both after ethics review and consent.
  3. LaterA classroom evaluation designed with teachers.
See the roadmap

Get involved

We would rather have the design criticized now than defended later.

  • Teachers

    Try the 8 moments and help plan a reviewed classroom pilot.

    Get in touch

  • Researchers

    Review our methods, replicate the replay, or collaborate.

    Get in touch

  • Students

    Tell us how a hint should feel when you are stuck.

    Get in touch

  • Advisors and mentors

    We are looking for an adult advisor for ethics review and study design.

    Get in touch