Topic stability mapping.
Every topic in the AA or AI syllabus is rated for consistency, not just for presence. Solving once doesn’t mean stable — it just means randomness was kind. The point is to take randomness out of the equation.
2IB Exam Systems · IB Mathematics · AI & AA · SL & HL
One-on-one structured preparation, focused on stability — not on isolated scores. When the right variables are tracked, performance becomes predictable.
A few spots open for 2026/2027.
For parents
Capable, hardworking students whose results fluctuate from one assessment to the next — a 6 one week, a 4 the next, depending on the topic. Most students revise topics; few analyse patterns. Most students complete past papers; few measure consistency under timed conditions.
There’s no months-long warm-up. By the end of session two, the gaps are mapped, the priorities are agreed, and we know what we’re working on first.
After each session you receive a written log: what was covered, what’s now stable, what’s flagged for next week. The system is visible — to the student, and to you.
When something specific comes up between sessions — a homework problem, a school assessment next week — message me. The work doesn’t pause for the next slot.
Sessions are scheduled in monthly or termly blocks. The calendar is yours — not contingent on this week’s availability.
How I work
Every topic in the AA or AI syllabus is rated for consistency, not just for presence. Solving once doesn’t mean stable — it just means randomness was kind. The point is to take randomness out of the equation.
Errors are logged, classified and revisited — not as punishment, but as data. A repeated error across five questions points to a structural cause, not to inattention. That cause is what we work on.
Consistency is measured under exam conditions. Accuracy and timing are tracked as separate, explicit variables, brought in gradually across the cycle.
If you’re the student
The first sessions will feel slow. That’s deliberate. We’re figuring out what you actually know — not what’s on the syllabus, but what’s solid. Four to six weeks in, you’ll be solving problems that confused you in the first sessions — and, more importantly, you’ll know why your answer is right.
The exam stops feeling like a question of luck.
Words from students and families
Thank you so much for everything you are doing with Oskar. We really cannot thank you enough for your lessons — you are truly fantastic. You are making such a difference, and we are incredibly grateful.
— Sarah, mother of an IB student
Irina has helped me a lot, not just as a student but also as an individual. She always has your best interests in mind and a great understanding of the IB system. She makes sure you understand everything and follows your learning pace. An amazing teacher!
— Clarissa S., former IB student
Track record
100+
Students
12
Countries
12+
Years
Mathematics tutored privately since 2011. IB Mathematics, the dedicated focus since 2024.

About
I’ve been teaching mathematics since 2011, in international schools and in private practice — in Portugal, in Colombia, and online. Since 2024 I’ve worked mostly with IB students, through 2IB Exam Systems.
2IB Exam Systems began with a recurring observation: capable, motivated students whose results fluctuated without obvious cause. Look closely and there’s always structure underneath the inconsistency. My work is to find that structure and teach the student to operate it.
Training
Master of Education in Mathematics Education
Universidade de Aveiro · 2016
IB DP Mathematics — Approaches to Teaching and Learning
Ontario Institute / University of Toronto · 2026–2027 (in progress)
Mathematics Teacher · International Curricula
Gimnasio Británico, Bogotá · 2013–2015
Get in touch
Tell me a bit about the student. I read every message and respond within two working days. If we’re a fit, I’ll send a calendar link for a thirty-minute introductory call — no obligation, no fee.