A student reading and working through a problem

TACHS

Your child's own
TACHS tutor

Pioneered by Stanford AI researchers and learning scientists, Aristotle is the world's first voice-based AI tutor. Built for TACHS prep.

Trusted by families at

StuyvesantHunter College HSBronx ScienceBrooklyn TechHorace MannTrinity SchoolCollegiateBrearleyFieldstonHarkerCastillejaMenlo SchoolHead-RoyceLick-WilmerdingLowell HSMission San Jose HS

Built for TACHS

Built around what the test covers

What the test covers

Every TACHS skill maps to the content the test covers, so practice time goes where the points are.

Your starting point

Aristotle finds what your child already knows and starts there, instead of drilling material they have mastered.

Your test date

Aristotle builds the plan backwards from test day and your child's target score.

Test prep

How does Aristotle help with TACHS prep?

Aristotle tracks 80 TACHS skills, finds the ones costing your child points, and plans review back from test day.

Skill-by-skill review

Follows what the test covers.

Exam-style practice

Your child talks it through. Aristotle coaches from the step that went wrong.

Help on demand

Any time before test day. No booking.

A parent view

See what's mastered and what's left.

Features

All the tools of a great tutor.

Talk things through, work side by side, and come back next time to a tutor who remembers where you left off.

Learn out loud

Ask questions out loud, hear explanations in Aristotle’s voice, and interrupt whenever you need to.

An interactive whiteboard

Aristotle draws steps, diagrams, and images to help you learn visually.

Practice built for you

Get practice problems tailored to the exact topics you’re struggling with.

65 subjects and counting

From middle-school math to AP exams to SAT/ACT prep. We also build custom plans matched to state standards and specific courses.

Review with ease

Revisit session summaries, session whiteboards, and uploads in one place.

Upload your own materials

Aristotle can read and navigate any PDFs and images with the learner. That includes textbooks with hundreds of pages!

Personalized tracking

We break all subjects down into granular skills, then track mistakes and mastery on each one. Parents can see the whole picture at a glance.

A tutor that knows you

Aristotle remembers every session: what you’ve covered, where you got stuck, how you like things explained. It picks up right where you left off.

The curriculum

80 TACHS skills, personalized to your child

Aristotle is designed to always know what to teach at exactly the right time.

Sample curriculum

Not startedIn progressMastered* Click a topic to see the skills inside

* Click a topic to see the skills inside

Reading

Written Expression

Mathematics

Ability

TACHS tutoring curriculum80 skills across 4 units

Reading

Topics: Vocabulary in Context, Explicit Meaning, Inferences and Evidence, Organization and Purpose.

Written Expression

Topics: Usage, Mechanics, Sentence and Paragraph Revision.

Mathematics

Topics: Number and Operations, Ratios, Percents, and Applications, Algebraic Thinking, Geometry and Measurement, Data and Probability.

Ability

Topics: Figure Matrices, Paper Folding, Figure Classification.

Here’s what families say about Aristotle

My son told me yesterday that we should cancel his human tutor, because Aristotle is doing a better job. The human tutor was $250/hour.

Kim L.

parent of Andy, 13Milwaukee, Wisconsin

Common questions about online TACHS tutoring

A few things you might wonder before getting started.

What does Aristotle's TACHS course cover?

Aristotle's TACHS course tracks 80 skills across 4 units, including Reading, Written Expression, and Mathematics. Every skill is linked to the skills it builds on, so the tutor always knows which parts of TACHS your child has mastered and what to teach next.

How does Aristotle help my child prepare for TACHS?

What does a TACHS tutoring session look like?

When should my child start TACHS prep?

Can Aristotle help if my child is struggling with TACHS?

How much does TACHS tutoring with Aristotle cost?

How is Aristotle different from ChatGPT for TACHS help?

Can parents see how the tutoring is going?

A learner having an idea, surrounded by maps and equations

This could be you

A little help. A lot to learn.

For homework, supporting your child, or anything you’ve always wanted to know more about, Aristotle makes it easy for anyone to learn out loud.