A triple-accredited online TEFL institute delivering a five-tier curriculum — Foundation to Level 5 Diploma — from Seoul, to every time zone.
“A teacher's first duty is not to speak, but to listen with patience and then to shape language around the learner.”
— Faculty Handbook, 2014 EditionEvery Hanseo qualification is independently accredited across three regions of the Asia-Pacific.
Accreditation Panel Council for
English Language Teaching
Global Body
Thailand International
Cooperation Agency
Singapore · ASEAN
Hong Kong TEFL
Standards Board
Hong Kong SAR
Each qualification we issue carries the insignia of all three accrediting bodies.
Certification accredited by APCELT, TICA and HKTSB and recognised across 70+ countries.
Every tutor still teaches English, somewhere, every single week.
A deliberately graded curriculum. Each level a stepping stone.
Observed teaching practice in volunteer online learners across Gangnam.
Our curriculum is read as a single text. Begin at the Foundation, end at the Diploma — or enter at the level your experience warrants, verified by an entrance interview with Faculty.
Classroom language, lesson shape, and the grammar of English as it is actually taught. For first-time tutors.
Lesson planning across the four skills, classroom management, and assessment of learner output.
Task-based learning, the Dogme approach, phonology for teachers, and differentiated instruction.
Business English, Young Learners, and Exam Prep (IELTS, TOEFL, TOEIC) taught as discrete streams.
Flash SaleThe capstone qualification. Research paper, observed practicum, specialist elective. Level 5 on APCELT Framework.
The Institute is registered at the Gangnam Finance Centre in Seoul — Korea's long-standing capital of English-language education. Our courses run live online from Korean Standard Time, connecting trainees across Asia-Pacific and beyond to a shared classroom without any of the logistics.
Korean by origin; global by delivery. Our cohorts run in real time across Asia-Pacific and beyond. 한서에 오신 것을 환영합니다.
About the InstituteClassrooms, lecture theatres, the view from Level 42. Photographs from recent intakes and the neighbourhood we call home.
The Level 5 Diploma flash rate — ₩517,300 (USD $350) — holds until 15 May 2026. All enrolment is by email.
Begin EnrolmentEnrolment at Hanseo is handled by written correspondence. Please send an email exactly as formatted below — the structured format allows our admissions office to process your application quickly.
◆ In your email, please include:
Our admissions office replies within two working days. Every applicant is scheduled for a 20–30 minute online admissions interview before final enrolment is confirmed.
Please include in your email:
Our admissions office replies to every message within two working days. Applicants are scheduled for a short admissions interview before final enrolment.