Math
Understanding, not just memorizing. We rebuild the basics and move forward step by step.
Learn morePrimary, secondary and CEGEP · Online or in Montreal
Tutoring that helps your child shine.
Math, French, English and artificial intelligence, from grade 1 all the way to CEGEP. Clear, patient sessions, a plan built around your child, and regular updates for you, the parents.
Gr. 1 → CEGEPEvery level
4Core subjects
EN · FRTwo languages
20Free assessment20 minutes, no commitment
A+Monthly updateFor parents
Our approach
We don't do your child's homework. We teach them to understand, to dare and to succeed on their own. It's slower in week one, and far more useful after that.
RAReza Abtahian, founder
Find the right course
Three clicks to know where to start.
1Level
2Subject
Your recommendationPick a level and a subject to see the recommended course, the price and the next step.
Your recommendationSee the course
Subjects
Four subjects, one goal: confidence.
Every session starts where your child actually is, not where they are “supposed” to be.
French
Reading with pleasure, writing with confidence, and grammar without the stress.
Learn moreEnglish
For ESL and EESL students as well as English Language Arts.
Learn moreAI and coding
For curious teens: understand AI, learn to code, and use these tools well at school.
Learn moreInteractive lab
Try a mini-lesson, right now.
Three small experiments taken from our sessions. Move the sliders and take the challenge.
Fractions, as pizza
Choose how many slices to cut, then how many to colour.
The line y = mx + b
The slope m decides whether the line goes up or down. The y-intercept b decides where it crosses the vertical axis.
y = x
A derivative is a slope
Move the point along the curve f(x) = x³/3 − x. The dashed line is the tangent: its slope is f′(x).
Challenge: find the two places where the tangent becomes horizontal.
Train your own AI
Click to add gold and blue points, then start training: the AI learns to draw the boundary between them. That's the core idea of machine learning.
–Accuracy
0Steps
This is exactly how we explain things in a session: see it, play with it, then understand the rule.
New · Stella AI
Stuck on homework at 9 PM? Ask Stella.
Stella is our learning assistant. She explains an idea a different way, gives a hint or checks your work, in English or French. She doesn't do the homework for you: she teaches you how to get it right.
Try:
I don't get how to differentiate sin(3x)
Great question! This is the chain rule: a function inside another one.
- The outer function is sin(u). Its derivative: cos(u).
- The inner function is u = 3x. Its derivative: ?
What's the derivative of 3x? Then multiply the two. ✦
Levels
From the first report card to graduation.
Grade 1 to grade 6
Solid foundations in reading, writing and math, with short, concrete and encouraging sessions.
Gr. 1Gr. 2Gr. 3Gr. 4Gr. 5Gr. 6
- Homework help and core concepts
- Reading, writing and mental math
- Grade 6 ministry exam preparation
- Monthly progress report for parents
Secondary 1 to Secondary 5
Study methods that work and serious preparation for the exams that count toward the diploma.
Sec 1Sec 2Sec 3Sec 4Sec 5
- Math CST, TS and SN
- French and English, reading and writing
- Ministry exam preparation
- Study skills and exam stress
Calculus I, Calculus II and Linear Algebra
For students in Science, Computer Science and Mathematics, or Commerce: understand the theory and pass the exams.
Calculus I · NYACalculus II · NYBLinear Algebra · NYC
- Limits, derivatives and optimization
- Integrals, series and applications
- Matrices, vectors and vector spaces
- Midterm and final exam preparation
●Live sessionShared whiteboard, tailored exercises
Format
Online or in person, your choice.
The same support, wherever your child learns best.
OnlineAnywhere in Quebec, with a shared whiteboard and exercises on screen.
In personIn Montreal, at home or at a library near you.
Small group2 or 3 students at the same level. Great with friends or before exams.
Exams
The years that count, prepared ahead of time.
Some school years end with Quebec ministry exams, and at CEGEP, finals weigh on the R score. We prepare early, without the panic.
–weeks until the June exams–weeks until December finals
Gr. 6
End of primary
Compulsory ministry exams in French and math.
May and JuneSec 4
Math
The math exam that counts toward the high school diploma.
JuneSec 5
French and English
Reading and writing exams in the language of instruction and second language.
May and JuneCEGEP
Calculus and linear algebra
Midterms and finals in NYA, NYB and NYC, often decisive for the R score.
October, December, March, MaySpring exam bootcamps. In April and May, intensive small-group sessions to review, practise with past exams, and walk in confident on exam day.
Reserve a spotHow it works
Simple, from the first call to the first progress.
Free 20-minute call
We talk about your child, their strengths, their struggles and your goals.
Assessment and plan
A first session to see where they are, then a clear plan for the weeks ahead.
Sessions and follow-up
Weekly sessions, online or in person, and a short update for you every month.
Pricing
Clear pricing, no hidden fees.
No registration fee and no contract. You pay for sessions, that's it.
Primary
Grade 1 to grade 6
$35/ hour
- Math, French or English
- Online or in person
- Monthly update for parents
Secondary
Sec 1 to Sec 5
$45/ hour
- Every subject, including SN and TS math
- Ministry exam preparation
- AI and coding for teens
CEGEP
Calculus I, II and Linear Algebra
$55/ hour
- NYA, NYB, NYC and other math courses
- Theory explained clearly
- Final exam preparation
Small group
2 or 3 students, same level
$20/ student / hour
- Great for friends or siblings
- Review sessions and exam bootcamps
- Same attention, better price
Estimate your budget
Pick a level, a pace and a length. No contract, adjust whenever you like.
Level Sessions per week1
Session lengthEstimated per month
$180 / month
$ per session
Estimate over 4 weeks. Group rate is per student.
For adults: AI at work
A 4-week small-group course for professionals (healthcare, accounting, real estate, business): use AI practically and safely in your daily work.
$300
Learn more Pay by Interac e-Transfer after each session or with a monthly package. Free cancellation up to 24 hours before a session.
My job is to turn “I don't get it” into “oh, that's it?”
Reza AbtahianFounder and tutor
About
Founded by someone who loves math and teaching.
My name is Reza Abtahian. I study computer science at Concordia University, and I teach math, French and artificial intelligence to students and professionals alike.
I started Stellaire Académie with a simple idea: every child can succeed when things are explained clearly, patiently and at the right pace. My job is to turn “I don't get it” into “oh, that's it?”.
ConcordiaComputer science student
3 languagesFrench, English and Persian
ChampionQuebec intercollegiate chess tournament
AIAI trainer for professionals
Book
Start with a free call.
Fill in the form. We reply within 24 hours to set up your 20-minute call.
- No commitment, no registration fee
- A tailored plan after the first session
- Weekday evening and weekend availability
Prefer to write directly?
info@stellaireweb.com · 438-530-7818
Free resources
Keep learning between sessions.
In-depth guides and calculators for parents and students, written by our team. Resources →
Free tools
R score calculator
Calculate your Quebec R score (CRC) for one or several courses with the official formula: grade, mean, standard deviation, IFGZ and IDGZ. Free, no sign-up.
Use the tool Free toolsWhat do I need on the final?
Find the grade you need on your final exam to reach your target, based on your current grade and the exam's weight. Free and instant.
Use the tool SecondaryCST, TS or SN: Which Quebec Math Sequence to Choose?
CST, TS or SN math sequence in Quebec: what each covers, who it suits, which cégep programs need TS or SN, how switching works and how to decide.
Read the guide Secondary 4How to Pass the Secondary 4 Math Exam in Quebec
Get ready for Quebec's Secondary 4 math exam: how the ministry exam works, an 8-week study plan, time management and the mistakes to avoid in CST, TS, SN.
Read the guide CEGEPHow the R Score Works in Quebec (Worked Example)
How the Quebec R score (CRC) is calculated: the formula, Z score, IFGZ and IDGZ, a worked example, failed courses, common myths and practical strategies.
Read the guide CEGEP · NYACalculus 1 in CEGEP: 10 Common Mistakes to Avoid
The 10 most common Calculus 1 mistakes in CEGEP (201-NYA): algebra, limits, chain rule, optimization and related rates, with clear examples and fixes.
Read the guideFAQ
Frequently asked questions
Where do sessions happen?+
Online anywhere in Quebec, with a shared whiteboard, or in person in Montreal depending on the area. We'll sort it out on the free call.
How long is a session?+
Usually one hour. For younger primary students, 45-minute sessions often work better, prorated at the hourly rate.
How often?+
One session a week works for most students. Before exams, two a week helps lock things in.
How does payment work?+
By Interac e-Transfer after each session, or with a monthly package. No registration fee, no contract.
What if we need to cancel?+
No problem up to 24 hours before the session. Last-minute cancellations are charged.
Are sessions available in French too?+
Yes. Sessions can be in English or French, and French is also taught as a subject.