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Small is an advantage
Small classes let the teacher remember names, strengths and even birthdays.
Story
Built by a teacher — not a chain.
Stemhouse didn't start as a brand. It started as a stubborn answer to a question Aga had been turning over for ten years: why don't the books fit the children?
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Founding Teacher
Mr. Aga
Internationally trained · IELTS specialist · Ed-tech founder
Founding Teacher
Mr. Aga.
Aga has taught English for over a decade across Southeast Asia — first inside large language centres and international schools, then building his own programmes when off-the-shelf books fell short for Vietnamese children. He believes English is not a test — it is how a child connects with a wider world. At Stemhouse, his classroom is a place where students dare to be wrong, dare to speak, and leave more confident than they entered.
- 10+ years international teaching
- IELTS Speaking & Writing specialist
- CEFR communicative methodology
- Calls Bến Lức his home
Founding Teacher
Verified training & qualifications
Tap any certificate to view it full-size.
120-Hour TESOL/TEFL Certificate
World TESOL Academy · CPD-accredited (UK) · 2026
Why Stemhouse exists
Aga has worked in nearly every kind of English programme in Vietnam — large language centres, bilingual schools, after-school franchises. The good ones taught him systems. The frustrating ones taught him what was missing: the books were written for an imagined global child, and Vietnamese kids — bright, curious, careful — kept being asked to fit a syllabus, instead of the other way around. Stemhouse is the answer to that. A small studio with the freedom to mix and remix the best of Genki, My Phonics, Hang Out and Cambridge Prepare, layer in a Stemhouse Communication Course nobody else has, and pair it with testmaster.pro — an AI practice platform Aga built himself when he couldn't find one that did the job. Built like a teacher would build it, not like a chain franchise.
What we believe
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Mistakes are part of learning
At Stemhouse, mistakes are welcomed. They're the sign of a brain making new connections.
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Parents are partners
We report transparently, invite parents to observe class and treat feedback as real partnership.
Next step
Book a free trial lesson.
30 minutes with Mr. Aga — in English or Vietnamese — to understand your child's level and the right path forward.