IB syllabus
Every IB Biology SL skill maps to a topic in the syllabus, so sessions cover what the exams test.

IB Biology SL
Pioneered by Stanford AI researchers and learning scientists, Aristotle is the world's first voice-based AI tutor. Built for the IB Biology SL syllabus.
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Fits your child's IB Biology SL class
Every IB Biology SL skill maps to a topic in the syllabus, so sessions cover what the exams test.
Share your teacher's syllabus, textbook, or pacing guide and sessions follow your child's actual class.
Aiming for a 7? Aristotle plans review back from your child's target grade and exam date.
IB exam prep
Aristotle tracks 209 IB Biology SL skills, finds the ones costing your child points, and plans review back from exam day.
Follows the syllabus, unit by unit.
Your child talks it through. Aristotle coaches from the step that went wrong.
Any time before the exam. No booking.
See what's mastered and what's left.
Features
Talk things through, work side by side, and come back next time to a tutor who remembers where you left off.
Ask questions out loud, hear explanations in Aristotle’s voice, and interrupt whenever you need to.
Aristotle draws steps, diagrams, and images to help you learn visually.
Get practice problems tailored to the exact topics you’re struggling with.
From middle-school math to AP exams to SAT/ACT prep. We also build custom plans matched to state standards and specific courses.
Revisit session summaries, session whiteboards, and uploads in one place.
Aristotle can read and navigate any PDFs and images with the learner. That includes textbooks with hundreds of pages!
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.
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
Aristotle is designed to always know what to teach at exactly the right time.
Sample curriculum
* Click a topic to see the skills inside
Unity and diversity
Form and function
Interaction and interdependence
Continuity and change
IB Biology SL tutoring curriculum209 skills across 4 units
Unity and diversity
Topics: Molecules, Cells, Organisms, Ecosystems.
Form and function
Topics: Molecules, Cells, Organisms, Ecosystems.
Interaction and interdependence
Topics: Molecules, Cells, Organisms, Ecosystems.
Continuity and change
Topics: Molecules, Cells, Organisms, Ecosystems.
A few things you might wonder before getting started.
Aristotle's IB Biology SL course tracks 209 skills across 4 units, mapped to the IB subject guide, including Unity and diversity, Form and function, and Interaction and interdependence. Every skill is linked to the skills it builds on, so the tutor always knows which parts of IB Biology SL your child has mastered and what to teach next.
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This could be you
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.