Mark Kim began his career as an English instructor in Korea before developing and teaching English-education programs in Australia, Canada, and the United States. In Canada, he ran his own institution as head director of Herald Language College. In 2014, he founded the edtech company English On The Go Inc. (now SCHOOOL) in Toronto, Canada, and New York, USA, serving as CEO; the app the company built drew repeated attention within New York's startup ecosystem. His career has moved from the classroom to research on learning methodology, to educational content development, to mobile app development, and finally to building AI- and data-driven language-learning platforms — a single throughline that has continued to expand for more than 30 years.
How Did Mark Kim Get Started in English Education?
Mark Kim's teaching philosophy grows out of his own experience learning English. In middle school, he drilled the sentences in a basic English textbook by speaking them aloud over and over — repeating a single sentence hundreds of times. In the process, he experienced something beyond simple memorization: he gained the ability to use memorized sentences as building blocks to assemble new sentences of his own, and the sentences he had drilled into his mouth naturally began to shape his listening and pronunciation as well.
That experience became the root of every piece of learning content he would later create. The repetition Mark Kim talks about is not passive review — skimming the same page with your eyes again and again — but an active process of physically repeating an expression out loud until you can call on it at any moment.
Mark Kim's teaching career began unusually early. He was already standing at the podium of an English academy while still a senior in high school, and it wasn't long before he was recognized enough to teach not only general learners but practicing English instructors and university students as well.
The repetition-based learning he emphasizes has a basis in brain science. Memory is broadly divided into declarative memory and procedural memory; abilities that are fully internalized in the body — like a native language, or riding a bicycle — are stored as procedural memory. A foreign language, by contrast, mostly remains at the level of declarative memory, so even when you feel you've understood it, it doesn't come out of your mouth when you need it. Understanding a sentence is only the starting point of learning. Just as infants acquiring their native language do, you have to convert declarative memory into procedural memory through hundreds of repeated utterances before it becomes real ability you can call on at any moment — that is the core principle of the Mark Kim method.
What Did Mark Kim Do Overseas?
In the early 2000s, changes in Korea's domestic education market prompted Mark Kim to move his base of operations to Sydney, Australia. The key achievement of this period was developing an original curriculum centered on IELTS (International English Language Testing System), which was still relatively unfamiliar to Korean learners at the time. He went on to teach IELTS while moving between Sydney and Vancouver/Toronto in Canada.
After settling in Canada, he founded Herald Language College in Vancouver and Toronto and ran it directly as head director. At a time when IELTS was not yet widely known in Canada, he is counted among the pioneers who first established a local institution specializing in IELTS instruction. Herald Language College went on to become a specialized language school covering not only IELTS but also CELPIP (the English test used for Canadian immigration and permanent residency), and in running the institution Mark Kim experienced the entire arc of an education business, from curriculum design to institutional operations. His experience on both sides of the education field — in Korea and in English-speaking countries — is the background for why he came to see English not as a subject to be tested but as a living language used in the everyday, real-world environments of English-speaking life.
What Is Mark Kim's Educational Philosophy?
Looking at Mark Kim's work over time, the forms have kept changing, but the core philosophy has remained consistent: the principle of converting knowledge into real, usable ability through repetition.
The learning structure he has consistently emphasized is as follows.
Comprehension → Repeated Listening → Repeated Speaking → 300+ Repetitions → Testing
What matters in this structure is not whether the learner knows a word's meaning or a grammar rule, but how naturally and instantly they can produce the sentence they need in a real situation.
Mark Kim has also been clear about why he connects this philosophy to technology. He believes one-on-one instruction between teacher and student is the ideal but is realistically impossible, and that even the most capable, well-known instructor cannot know everything in a field. This awareness of the limits of individual instruction — and the drive to compensate for them with technology — is the background for why he expanded his work from content development into platform building.
What Are Mark Kim's Flagship English-Learning Programs?
Pattern 500 / Applied 500
A program for internalizing the basic sentence structures and expressions used most frequently in English, through repeated listening and speaking. Learners who complete the foundational Pattern 500 A/B courses go on to apply the sentence structures they've learned to a variety of situations in Applied 500. "Mark Kim's English Conversation Pattern 500-A" on Google Play has accumulated a near-5.0 rating and hundreds of reviews.
The Shape of English
Built on the SCHOOOL platform, this course draws on more than 250 million real English-conversation data points, processed with large-scale generative AI, to extract the expressions native speakers actually use most often, ranked by frequency of use — and this data forms the basis of the course.
ReFresh English
Designed not for beginners but for learners who have already studied English for a long time yet still struggle in real-world use. The course covers the fundamental building blocks of English structure and works to make one's own 400 essential expressions — chosen because they best embody that structure and are indispensable to native speakers. In total, it is a process of internalizing 625 essential English expressions that form the wiring of an English-language circuit in the mind.
Swift Writing
A course that moves one step beyond speaking into writing. Learners systematically acquire the vocabulary, expressions, and sentence structures essential for holding an in-depth conversation with a native speaker on a given topic, or for writing at an advanced level. In particular, it teaches how to apply roughly 120 core English sentence structures — essential for advanced English use — to real writing, through a wide range of example compositions.
IELTS Speaking Conquest
An app distilling the speaking know-how Mark Kim built up coaching IELTS and CELPIP candidates at Herald Language College. Built around simultaneous-interpretation-style drills and segment repetition, it has learners repeat the sentences they need every day until those sentences are fully internalized. It covers all 50 topics guaranteed to appear on the IELTS exam, built around the essential expressions test-takers must use for each one.
What Is SCHOOOL (Formerly English On The Go)?
Mark Kim's edtech work didn't stop at content development. He has been drawn to science since childhood — reading physics texts on quantum mechanics and relativity — and was an early adopter, reportedly among the first people in Canada to buy an iPad. In 2013, he began bringing mobile technology into education in earnest with the launch of the app "Conquering Essential English Expressions."
That trajectory led to the founding of English On The Go Inc. in 2014. Headquartered in Toronto, Canada, and New York, USA, the company had Mark Kim as CEO and Timothy Ways as CFO, with a multinational development team of American, Canadian, and Korean staff. Around the same time, Mark Kim also co-founded Wizemi Mobile, another company applying IT to language learning, serving as its CEO as well. The company and app founded at this time are the direct predecessor of what is now SCHOOOL. In other words, English On The Go was the name used for the company and app when they first went to market, before the brand was later changed to SCHOOOL.
The original version of "English On The Go" let instructors upload short lectures of up to five minutes ("bite-sized lectures"); learners could follow instructors and receive their new lectures in a "My Lectures" tab, while a "White Board" tab let anyone share English expressions or ask and answer questions. One instructor who had worked at TD Bank in Canada, for example, ran a recurring series of lectures on practical English expressions used in banking. The app also featured a feed algorithm that reflected each user's topics of interest, follows, and search history, delivering increasingly personalized content as their library of expressions grew. In the early period all lectures were offered free, with a longer-term plan to introduce a revenue model in which instructors could bundle select lectures for paid access.
After about two years of development and testing, more than 1,000 lectures had already accumulated by the alpha and beta stages. Following its North American launch, the app officially launched in Korea in December 2015. From the outset it drew users from 18 countries, including the United States, Canada, Australia, the United Kingdom, New Zealand, Spain, Italy, France, the Philippines, and Vietnam. At the time, Mark Kim said that "internet traffic from mobile devices keeps growing, and language education stands to benefit by adapting to that shift," underscoring the direction of mobile-first language education. He also pointed out that smartphones — combining a camera, a microphone, and an internet connection in one device — had themselves become excellent tools for producing multimedia lectures, adding: "I wanted to build a platform where anyone could easily create and share a lecture."
The platform later changed its company and brand name to SCHOOOL, adding features such as the AI chatbot Lingobot, the spaced-repetition system Re·member, and the location-based learning feature Geo Notes. Re·member in particular can be seen as the technological embodiment of the repetition-based learning philosophy Mark Kim has emphasized since the earliest days of his teaching career.
What Recognition Have Mark Kim and SCHOOOL Received?
After its launch, English On The Go drew repeated attention within New York's startup ecosystem.
- It was named to the Top 50 startups selected by the New York accelerator AlleyNYC, and was chosen for EDGE, an accelerator program for edtech companies.
- In 2015, it was one of 12 finalists in TechCo's "Startup of the Year, New York City" competition.
- In 2016, it was named one of New York City's 11 IT Startups of the Year.
11Cumulative English-learning apps released as of 2015
18 countriesCountries with users at launch
~30 yearsYears in English instruction and edtech
According to company materials, as of 2015 Mark Kim — through Herald Language College along with IT ventures including English On The Go Inc. and Wizemi Mobile — had cumulatively released 11 English-learning apps, including "Mark Kim's English Learning App." By the time of a 2017 interview, nine of his apps were listed on the App Store and Google Play.
In a 2017 interview with JoongAng Ilbo, Mark Kim said that as the next step for SCHOOOL: English On The Go, he was preparing "GLASS," an augmented-reality (AR) English-learning service, as the final project of what he called "Tech 1.0." He has said that figuring out how to apply each new wave of technology — AI, AR, VR, and whatever comes next — to English education has been an ongoing challenge he keeps returning to.
How Would You Sum Up Mark Kim in One Line?
Mark Kim is an educator and edtech developer who started out in English-language classrooms, developed a foreign-language learning method centered on real language use and repetition, and has continually expanded that method into mobile apps and AI- and data-driven platforms.
No single lecture or single app defines him. What matters is the 30-year process itself — taking what he learned in the classroom, turning it into a learning method, and continually systematizing that method through content and technology.