Q.We're moving abroad soon. Can my child follow math taught entirely in English?
I've watched my own two children — used to Korean math vocabulary — hit walls in English SAT/AP problems. We start building that bridge before you even leave.
1:1 MATH TUTORING FOR INTERNATIONAL-SCHOOL FAMILIES · SAT · AP · IB · IGCSE
International School Math 1:1 Tutoring
for SAT · AP · IB · IGCSE.
As a parent sending my own children to international schools, I have thought deeply about math education from a parent's perspective. Built on that experience, I have spent the past 8 years specializing in tutoring international-school middle and high school students, guiding many to outstanding results on SAT Math and AP Calculus BC.
● Reply within 1 business hour · Decide after one trial lesson
🎓8 Years Teaching International-School Math
🏆SAT 800 · AP Calculus BC 5 teaching experience
📱Mathiter Web App Included
app.mathiter.com
📅
NEXT SESSION
Tue · 7:00 PM
SAT · Algebra II● Confirmed
DOES THIS SOUND FAMILIAR?
International school —
and math is the biggest worry.
Built on 8 years teaching international-school students and the firsthand experience of sending my own children to international schools, I deliver math know-how tuned specifically for the international-school curriculum.
Q.My child is at an international school but the SAT/AP scores aren't there.
Understanding it in class and scoring on the test are two different things. We build test-taking strategies in both Korean and English so the gap closes.
Q.We're already abroad and math has become my child's weakest subject.
1:1 online tutoring delivered via Google Meet inside the Mathiter Web App — distance and time zones don't matter. The same quality you'd get in Korea, delivered to wherever you are.
Watch — 1 minute
Why one tutor needs to teach both systems.
Park Sejun has lived inside both Korean math and US math. See how he designs each 1:1 lesson — in just one minute.
Plays with Park Sejun's voice · tap bottom-left to mute
HOW LESSONS WORK
From consultation to regular lessons, in 4 steps.
Start with one in-person meeting. Regular lessons run 100% online. Meet first — decide later.
01Chat · Call · Meeting
Parent Consultation
⏱ ~30 min · Free
Tell us about your child via KakaoTalk, phone, or in person — whichever you prefer. A prior level test makes the conversation even more precise.
02● 1× IN-PERSON
First In-Person Lesson with Your Child
⏱ ~55 min
We sit down with your child, walk through the level-test results together, and run the first lesson in a relaxed atmosphere. Through natural conversation, we get a clear read on their current level and learning style.
03DECISION
Decide & Schedule
⏱ Together
After both meetings, we decide on regular lessons and weekly schedule together. If it isn't the right fit, you walk away with no obligation.
04● 100% ONLINE
Online Regular Lessons
⏱ 1–3× / week
1:1 live tutoring via Google Meet inside the Mathiter Web App. Same tutor, same schedule, regardless of where the family lives.
One in-person meeting to start, then 100% online — the same quality whether you're in Korea or abroad.
THE MATHITER WEB APP
Lessons end,
but learning keeps going.
The Mathiter Web App handles your child's self-study and gives parents real-time visibility — both at once.
FOR STUDENTS
Never get stuck between lessons.
Review problems, weak-topic drills, AI auto-grading — students keep moving even when the tutor isn't there.
- Full-length SAT / AP / IB / IGCSE practice testsTimed, scored, and benchmarked against real exam distributions.
- Automatic incorrect-answer notesEvery miss is logged with the original solution, the student's attempt, and a step-by-step fix.
- Topic mastery chartsAlgebra, geometry, statistics, trig — see exactly which topics need work.
FOR PARENTS
Your child's learning, on one screen.
Schedule, homework progress, lesson attitude, score trajectory — see how things change week-by-week, in real time.
- Schedule + attendanceUpcoming lessons, completed lessons, absences and reasons — all in one place.
- Homework progress + lesson-attitude notesWithin 24 hours of each lesson: what was covered, what was mastered, what to watch.
- Score trajectory + predicted scoreTrends, not snapshots. Predicted score updates after every diagnostic.
🎓
Specialty
SAT · AP Calc BC
WHY JUSTIN PARK
Justin Park
Founder · SAT & AP Math Specialist · Father of two international-school children
“I'm a fellow parent — both my children are growing up in international schools abroad. The questions you have about your child's math, I'm asking them every day too. More than "a tutor who teaches well", I want to be a companion who walks the path with you.”
8+ yrs
International-school math teaching
Many
SAT 800 · AP BC 5/5 students
2 kids
Raised in international schools abroad
Education & Experience
- Whimoon Middle · Joongdong High — grew up as a student in Daechi-dong (12 years, K-12)
- Korea University · Mathematics (admitted)
- Hanyang University · Electronic, Electrical & Computer Engineering (graduated)
- 8 years teaching international-school math
- Two children in international schools abroad (kindergarten → middle/high)
Subjects Taught
SAT Math (Digital)AP Calculus AB / BCAP StatisticsIB Math AA / AIIGCSE ExtendedA-Level / Further MathKorean CSAT Math
Tailored packages
Four packages, matched to grade and goal
From elementary through admissions and competition prep, we run four packages matched to each student's grade and target. The exact program and fee are shared 1:1 after a free diagnostic consultation.
🚲
Elementary
Basic
Calculation fluency & habits (US Grade 1–5)
🚗
Middle School
Advanced
Pre-Algebra start + middle-school GPA (US Grade 6–8)
🚙
High School
Pro
Advanced concepts + GPA mastery (US Grade 9–11)
🏎️
Exam · Olympiad
Master
AP·SAT·Olympiad top-score (admissions tier)
Custom quote
Start with a free 30-minute consultation
Tell us your child's current grade, school curriculum, and target exam. We'll recommend the best-fit package and share the exact fee — directly from Mathiter Tutoring.
Replies within 1 hour during business hours · One trial session before you decide
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