Mon–Sun, 10 AM – 6 PM Lotte Mall Kuningan, 4th Floor, Jakarta
WhatsApp +62 877-7100-4888

EMPOWERING YOUNG MINDS

Touch, hear, see, remember. Four methods, one stronger brain.

Abacus-based brain development for children aged 4–15, created by world champion abacus master JeongHee Lee.

Book a Free Trial Class How it works
Master JeongHee Lee holding a large abacus
World Champion founderMental Calculation World Cup 2016
Classes of 1–4 children
20years of teachingSince 2006 in Korea
3countriesKorea, USA, Indonesia
10K+students taughtBy Master Lee in Korea and the USA
11thDan abacus masterThe highest grade in abacus

WHAT IS GENIKIDZ?

An after-school brain development center, built on the abacus.

Children first learn to calculate on a real abacus. Step by step, they learn to picture the abacus in their minds and calculate without it. The goal is not a “human calculator”. It is a stronger brain: focus, memory and confidence that carry into every school subject.

More about Genikidz →

Why parents choose Genikidz

A method built by a world champion, refined over 20 years in 3 countries
Small classes: private (1 child) or semi-private (2–4 children)
A clear 10-step journey with a placement test before each new level
Support for every learner: we have seen steady, gradual progress in some of our students with ADHD or autism
International certificate exams every 6 months

ONE METHOD, FOUR SENSES

Each method trains a different sense. Together they give the brain a complete workout.

Explore the method →
TOUCH

Abacus (Jusan)

Fast finger movements on the beads build the hand–brain connection.

HEARING

Dictation (Hosan)

Children listen and calculate at the same time, training deep focus.

SIGHT

Mental Math (Amsan)

Children see numbers and calculate fast in their minds.

SIGHT + MEMORY

Flash Math

Numbers flash by; children see, remember and add them all at once.

Master JeongHee Lee, founder of Genikidz, with an abacus

CREATED BY A WORLD CHAMPION

Master JeongHee Lee, Founder

Master Lee began the abacus at 11 and reached the 11th Dan in high school. She has taught more than 10,000 students in Korea and the USA, and in 2023 brought her method to Jakarta.

At 61, she won world gold again.At Memoriad 2024 in Dubai she took gold in addition and Flash Anzan, the same events she won in 2016, and solved the addition round 18 seconds faster than eight years before.
  • Holds 2 official Memoriad world records: Flash Anzan Marathon and 8-digit mental multiplication (2016)
  • Mental Calculation World Cup: Most Versatile Calculator (2016) and Addition winner (2018)
  • 6 Memoriad gold medals: 4 in Las Vegas (2016) and 2 in Dubai (2024)

As seen on SBS Star King · KBS2 · The Record · The Korean New York Daily

Meet our founder

PROGRAMS

Three levels, one steady journey.

See programs and schedule →
LEVEL 13–8 Beginner Meet the abacus, learn the beads, master combinations and start mental math. LEVEL 7–4 Intermediate Multiplication and division, on the abacus and in the mind. LEVEL 3–1 Advanced Large numbers, millions and decimals, all the way to Genikidz Master.
Private: 1 child Semi-private: 2–4 children 2 classes a week, 60 min each Mon–Sun, 10 AM – 6 PM

RESULTS

Our students shine on the international stage.

See all results →
GOLD MEDALWorld Math Invitational 2025Bangkok, Thailand
GOLD MEDALSASMO 2025Singapore & Asian Schools Math Olympiad
GOLD MEDALSEAMO 2025Kuala Lumpur, Malaysia
CERTIFICATIONInternational Certificate ExamHeld every 6 months

HOW TO JOIN

Four easy steps to start.

  1. 1Message usChat with us on WhatsApp and pick a time for a trial.
  2. 2Free 1-on-1 trialOur teacher checks your child is ready and recommends the right class.
  3. 3RegisterChoose Private or Semi-private and your 2 weekly slots.
  4. 4Start learningClasses begin. Each time your child is ready to move up, a placement test confirms the new level.

Quick answers

What is the best age to start?

We welcome children aged 4 to 15. Starting early is best, because young brains build focus and visualization habits fastest.

My child is weak at math. Can they join?

Yes. Our method is different from school math. We start from the basics and move at your child’s pace.

How much are the classes?

Fees depend on the level and class type. Message us on WhatsApp for fees and available slots.

See all questions →

Visit us

Genikidz Lotte Mall KuninganLotte Mall Jakarta, 4th Floor (beside the Avenue lift), Jl. Prof. DR. Satrio Kav. 3, Kuningan, South JakartaMon–Sun, 10 AM – 6 PM
Maps and directions →

FREE 1-ON-1 TRIAL CLASS

See the difference in one class.

Your child will try the abacus with our teacher, who will check that your child is ready and recommend the right class.

Book a Free Trial Class