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EVERY LESSON ADAPTED TO YOUR LEVEL, PERSONALIZED TO YOUR MATERIAL.

EVERY LESSON ADAPTED TO YOUR LEVEL, PERSONALIZED TO YOUR MATERIAL.

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From your course to a lesson that adapts.

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Your active course

PHYSICS 101

Newton’s Laws

Next lesson: Action and reaction forces

Course progress42%
Harsen AI Tutor
Watch what happens when these two carts push apart.
The lighter cart moved farther. Which cart felt the bigger force?
The lighter cart, because it moved more.
That’s the part to fix. Both carts feel the same force in opposite directions. The lighter cart accelerates more because it has less mass.

Harsen remembers what worked.

You understand action–reaction forces.
Force and acceleration need another check.
Visual examples helped it click.

Your next lesson starts more personalized to you.

LIFE OF A STUDENT IN 2026

Lecture?

Moves too quickly and continues before the confusion is resolved.

AI?

Explains everything, but never finds the exact misunderstanding.

Friends?

Friends may be just as confused, while shared notes add information without explaining the gap.

YouTube?

Videos are often long and generic, with no connection to the exact material the student is studying.

The real issue

Students have more information than ever, but none of it finds the exact gap and adapts to how they understand. That is where Harsen comes in.

HOW STUDENTS USE HARSEN AI

01
START WITH YOUR OWN MATERIAL

Upload your material.

Drop in the slides, notes or PDFs you are actually studying from. Harsen teaches your course, not the internet.

Add course materialCHEM 201

Course files

PDF Lecture 04
Collision Theory
PDF Lecture 05
Activation Energy
PDF Lecture 06
Reaction Rates
DOC Catalysts
Lab Notes
PPT Tutorial
Questions
Activation Energy · Lecture 05
18 PAGES4 DIAGRAMSPDF
✓ READY TO BUILD YOUR PLAN
02
BUILD THE LEARNING PLAN

Harsen builds your learning plan.

It reads the material, finds the concepts and how they connect, then decides the order to teach them in.

Your learning plan4 CONCEPTS FOUND
1 Collision theory
2 Activation energy
3 Rate laws
4 Catalysts
03
FIND WHERE YOU ARE

Start at the right level.

A short question first, so Harsen knows what you already understand and where the gaps actually are.

Quick checkBEFORE WE START
Before we begin — what makes a reaction speed up?
More heat I think? Not sure why.
STARTING LEVELFOUNDATION → BUILDING
04
A REAL BACK AND FORTH

Learn interactively.

Not one long wall of text. You answer, and Harsen adapts what it says next based on what you said.

Collision theoryINTERACTIVE LESSON
Harsen Particles must collide with enough energy to react. Watch what heat changes.
You It makes them move faster, so they collide more often?
Harsen Exactly—and more collisions now cross the energy threshold.
Higher temperature · faster particles MORE SUCCESSFUL COLLISIONS
05
SMALL PIECES, IN ORDER

Build understanding step by step.

Hard concepts get broken into small pieces. If something does not click, it explains it a different way.

Activation energyBROKEN INTO 3 STEPS
That one didn’t land. Let’s take it in three smaller pieces.
STEP 1 Particles collide
STEP 2 Energy barrier
STEP 3 Reaction proceeds
06
USE IT, DON’T REPEAT IT

Think, don’t just memorize.

Follow-up and application questions, so you can use the idea on a question you have never seen before.

Apply it to a new problemCRITICAL THINKING
Reaction energy pathway ENERGY REACTION PROGRESS WITHOUT CATALYST WITH CATALYST

Why does the catalyst make the reaction faster?

It increases the number of particles.
It lowers the activation-energy barrier.
WHY? More collisions now have enough energy to react successfully.
✓ UNDERSTOOD AND APPLIED
07
IT REMEMBERS YOU

Continue more personally.

Your progress, weak spots and the explanations that worked are saved, then used to start the next session.

Session savedCARRIED FORWARD
✓ Collision theory — solid
✓ Activation energy — needed 3 steps
✓ Works best with diagrams first
NEXT SESSION
Starting with rate laws — and we’ll use diagrams, since that worked last time.
The learning loop continues

Every session makes the next one more personal.

Harsen carries forward what you understand, where you struggle and the teaching methods that work best for you.

Diagnose Teach Check Personalize

TRY HARSEN INTERACTIVELY

Choose a Chemistry topic and experience how Harsen teaches with you—not at you.

HARSEN · CHEMISTRY LAB

Your course material

Drag the sample PDF into Harsen, or use one of your own.

Collision Theory CHEM 201 · 18 pages

Drag this file into the lesson area

Start an interactive lesson

Harsen uses the material to teach the topic at your level.

Drop your Chemistry PDF here or use the selected sample topic above CHOOSE YOUR PDF
CHEM 201

Collision Theory & Temperature

Harsen will turn this topic into a short interactive lesson and adapt to each answer.

Use your own Chemistry PDF

Building your lesson

Reading Collision Theory.pdf

1Reading pages and key concepts
2Finding diagrams and examples
3Building an interactive lesson
Collision Theory & Temperature INTERACTIVE CHEMISTRY
HARSEN

Choose an answer and Harsen will teach it visually.

YOU DIDN’T JUST GET THE ANSWER. YOU LEARNED WHY.

Harsen checked your thinking, taught the missing part and saved what worked.

CONCEPTUnderstood
TEACHING METHODVisual explanation
PROGRESSSaved for next time

WHY WE BUILT HARSEN

Because getting an answer is not the same as understanding.

Students do not need another tool that finishes the work for them. They need teaching that notices where understanding breaks, responds to how they think and stays with them as they improve.

Our goal Make deeply personal teaching available to every student—whenever they need it.
Your next lesson can start differently

Learn with a tutor that learns you.

Join the first Harsen pilot and experience teaching built around your material, your level and the way you learn best.

JOIN THE FIRST PILOT YOUR MATERIAL · YOUR LEVEL · YOUR PROGRESS