Founded as Gegeerel School
Opened by order of the Capital City Governor on 26 May 1999, specialising in mathematics and foreign languages. First lessons in rented rooms at Kindergarten No. 129.
IIOur history
The Oyunlag Chronicle, 1999–2026
From rented rooms in a kindergarten to two campuses and the Cambridge curriculum. Twenty-seven years, told through our archive.
Foundations
1999 – 2004
Founded as Gegeerel School — “enlightenment” — with one clear idea: rigorous mathematics and languages for every child.
Fig.Kindergarten No. 129, our first home 
Fig.Winter break-time, 2000 A second temporary home
Classes move into rented premises in today's Eco-Asia University building.
Fig.The Mathematics Elective series Writing our own textbooks
Our teachers write the “Mathematics Elective” textbooks for Grades 1–5, distributed nationwide.
Fig.Staff and students, 2002 Teaching the teachers
We publish an advanced-maths curriculum and train city and rural teachers in a 60-hour course. City champions in the specialised maths olympiad series.
Fig.A moment of recognition, 2003 Recognised for quality
A “Good” rating in national inspections — one of only a few schools — as we begin to lead the capital in teaching quality.
Fig.Olympiad winners with the cup, 2004 Breaking ground
Work begins on a building of our own. Our students win the advanced-maths schools' cup for the third time.
A school of our own
2005 – 2012
A building of our own, national awards, our first graduates — and a new name: Oyunlag.
Fig.Gegeerel School, 2005 Our own building opens
Gegeerel School opens its own building. Wins at URBANEK-2005 and the P. Enkhbold National Mathematics Competition.
Fig.The awards evening, 2006 Child-Friendly School of the Year
Named by the Ministry of Education and the Mongolian Students' Association.
Fig.Off to an international competition, 2007 Mongolia's first bronze medals
Our students win the country's first two bronze medals at the Southeast Asian Mathematics Competition, and compete in the pan-European Kangaroo 2007.
More room to grow
A building extension and a sports hall open. City champions in rapid mental maths.
Fig.The school website, oyunlag.edu.mn A new name: Oyunlag
Renamed Oyunlag — Mongolia's first mass-education school with advanced maths, informatics and languages. Our first website and online learning.
Fig.Teachers and staff, 2010 First in the district
Ranked first of all public and private schools in Bayanzürkh district for quality.
Our first graduates
Every member of our first graduating class enters university. In Kangaroo maths: 16 gold, 5 silver and 2 bronze medals.
Fig.Receiving the 2012 honour A Leading School of the Capital
Honoured as a leading school of Ulaanbaatar. Private-school youth chess champions.
Rising to the top
2013 – 2019
New buildings and laboratories, an International Mathematical Olympiad medal, and a steady climb up the national rankings.
Fig.The class of 2013 Top ten nationally
Again every graduate enters university, and we rank in the national top ten. We launch the “Oyunlag Education” project.
Fig.The 2014 building Built to international standards
A new 720-student building opens, designed to international standards.
Fig.The new IT lab A Cisco Networking Academy
A full IT lab opens and we become an official Cisco Networking Academy. 238 olympiad medals this year.
Fig.Campus 1 in 2016 The C-wing and Sports Hall B
Room for 300 more students and a second sports hall. We pioneer the Singapore Education Innovation project.
Fig.N. Erkhes with his medals Our first IMO medal
N. Erkhes (Grade 12) wins our first International Mathematical Olympiad bronze. Second nationally in the entrance exam; 430 olympiad medals.
Fig.The A-wing Science laboratories
The A-wing opens with fully equipped laboratories for the natural sciences.
Fig.An online lesson, 2019 Learning goes online
First in Mongolia to run a preparatory class fully online. A video library covers every lesson, Grades 1–12.
The digital school
2020 – 2026
Software of our own, first in the nation four years running — and the Cambridge curriculum.
Fig.The first Oyunlag School app A fully digital school
We move to Microsoft 365 Education and teach fully online. The Oyunlag School app launches for students and parents.
Fig.The Mac lab First of 803 schools
First in the national entrance exam, and first nationally in Physics, English, Social Studies and Biology. New Apple Mac and design labs.
Fig.The new building A second campus building
First nationally again. Our second campus building opens, and the Oyunlag Teacher app launches.
Four years at the top
First in the national entrance exam for the fourth year running, with an average score of 706.
The Oyunlag Platform
We build our own platform in-house: one system for learning, attendance, transport, meals and payments.
The Cambridge curriculum
Oyunlag is authorised to deliver the Cambridge curriculum. A new chapter begins.
The chronicle continues.
Figure 2
From tenth to first
Oyunlag's national rank by average score in the General Entrance Exam (ЭЕШ), 2011–2024.
| Subject | Average |
|---|---|
| Mongolian history | 721.0 |
| Mathematics | 715.8 |
| Biology | 706.1 |
| Physics | 681.0 |
| Chemistry | 672.1 |
| Social studies | 665.8 |
| Mongolian language | 662.7 |
| English | 659.3 |
| School average | 685.5 |