International School in Yokohama to 12+4-Year Continuum Education
CGK is the only integrated international school in Yokohama with April enrollment.
More than 300 students from 2 years old to middle school attend the school, which plans to open a high school in 2028.
As an International Baccalaureate IB World School, our world-class curriculum and progressive, future-oriented approach to education foster independent, lifelong learners, while we, the school, continue to move forward with our students.
Educational Mission and Code of Conduct
With the mission of "maximizing your opportunities for happiness in an increasingly global world," we have been providing a high quality inquiry-based learning curriculum since the school's opening.
We contribute to creating a better and more peaceful world by developing young talent into internationally-minded individuals.
IB PYP World School. Full-time, 5-days-a-week enrichment curriculumfor children ages 3-5 (from 2 days a week for children age 2). Providing quality childcare and education that also nurtures non-cognitive skills, such as communication and emotional maturity through a global education centered on self-expression, critical thinking skills and a spirit of inquiry.
IB PYP World School. Providing practical inquiry-based learning through a transdisciplinary system. As a non-article one school with a flexible curriculum, CGK's global education incorporates IB (International Baccalaureate) and other world-standard curriculum.
IB MYP Candidate School. Explore learning by focusing on deeper and more focused concepts than the IB PYP curriculum. Students continue to make broad connections across subjects, but move towards more subject specific learning. Students will experience a one-year study abroad program in 7th grade to develop diverse perspectives and values from a young age.
Scheduled to open April 2028. Providing students with the opportunity to extend their learning and make connections across disciplines. Also CGK will provide an environment to nurture internationally-minded individuals that can contribute to a better world, maximizing opportunities for happiness in an increasingly global world.
The following is an introduction to CGK's educational systems and the faculty and staff who support it.
Education and childcare are not mechanical manifestations of the policies of an organization, but rather, a reflection the passion and enthusiasm of all staff members involved.
Through the collaboration of our faculty and staff with diverse backgrounds and the policies that CGK aims to achieve, we provide quality education and childcare.
12+4-Year Continuum Education
Continuum education from 2 years old until high school graduation. Continuity in our activities allows us to focus on education that is truly important for the future of the students, without wasting time on boring, repetitive studying.
The International Baccalaureate (IB) Education is an all-round education to develop internationally-minded individuals. Through IB education, we provide a consistent educational program from preschool onward.
Find out about the school's founder, his passion for education and the process of opening the school. This will make clear the source of our consistent philosophy and the motivation behind it, that is, a happy and prosperous future for children.
At CGK Elementary School, mathematics and Japanese language are taught through Units of Inquiry (UOI) wherever possible. When lessons focused on particular skills are more appropriate, subject content is also taught separately.
To explore a question in depth, children need to read for meaning, work with numbers and quantities, and put their thinking into words. Using those skills to investigate a question also helps them see why the skills matter. Foundations support inquiry; inquiry gives those foundations a purpose.
At CGK Elementary School (Grades 1-5), we connect subjects where meaningful while making time to develop individual skills carefully.
Consider a comparison. A child might initially feel that one quantity is greater than another. Using numbers or measurements to check that impression, then explaining the evidence, makes the comparison more precise. This is one example of mathematics and language becoming tools for thinking.
Leaving room for children to think does not mean withholding the knowledge or methods they need. There is a place for demonstrating a method, a place for practising it, and a place for children to decide how to apply it. Each has a role in supporting inquiry.
We do not have to choose between independent thinking and strong foundations. What matters is helping children move between the two.
@element_earth04 (Oct 24 & 25): Make your own moss terrarium.
@hanahanahandmade73 (Oct 25): Sticker workshop and handmade items.
Heal the Future (Oct 24): Plant-based ingredients and natural supplements, from Kamakura.
October 24 (Sat) & 25 (Sun), 2026 | 10:00–14:30 CGK Kannai Campus, Yokohama Open to the public. Free admission; no advance booking for entry. Some activities are paid. Exhibitor dates vary. More details via the link in our profile.
スポーツに、小さな世界づくりに、ハンドメイド。CGK School Festival 2026の出展者を、今回も5組ご紹介します！
TD Flag Football (10/24・25): 参加賞もあるフットボールの的当て。
横浜エクセレンス (10/24): バスケットボールのシュート体験。
Element Earth (10/24・25): 自分だけの苔テラリウムづくり。
はなはなハンドメイド (10/25): 切手風シールづくりとハンドメイド品。
Heal the Future (10/24): 植物由来原料・自然派サプリメントを扱う鎌倉の企業。
A little water on a hand. A small step into something new. 💧
Ocean Class (2-year-olds) tried its first water play at the end of July, as featured in August`s CGK Times.
Some children began cautiously, pouring small amounts from cups onto hands and feet. As they grew more comfortable, they explored spray bottles, water guns and toys that floated or sank.
Popular water guns also brought a social challenge: there were not enough for everyone at once. Children asked to use them, waited and passed them on. Sometimes waiting was frustrating too.
The story holds both enjoyment and difficulty. Exploring something new includes learning about our own feelings and those of our friends.
From CGK Times, August 2026. More school stories: website in our profile.
手に少し、水をかけてみる。新しい遊びへの、小さな一歩。💧
CGK Times 8月号では、Oceanクラス(2歳児)が7月末に初めて楽しんだ水遊びを紹介しています。
The machine was finished. The explanation mattered too.
At the end of CGK Afterschool`s two-day hydraulic and pneumatic machine project, teams demonstrated their creations and explained their choices and difficulties.
One team`s challenge was improving how well its machine could lift. In its presentation, the team described overcoming that obstacle through communication, teamwork and repeated testing—and by not giving up.
A working model shows one outcome. Explaining the changes and challenges reveals more of the learning behind it.
The project was part of Summer School, featured in August`s CGK Times. CGK Afterschool programme: Grades 1–9.
From CGK Times, August 2026. More school stories: website in our profile.
Show & Tell does not end when the speaker finishes.
In Mountain B Class (4-year-olds), children regularly share something meaningful to them: a favourite object, an interest or a personal experience.
Then it is their friends` turn—not simply to wait, but to listen, decide what they want to know and put a question into words.
Teachers have noticed children becoming more comfortable sharing their ideas with the group. The repeated opportunities matter: speaking, listening and asking are all part of participating in a classroom community.
One object can open many conversations.
From CGK Times, August 2026. More school stories: website in our profile.
In a two-day Summer School project at CGK Afterschool, teams built hydraulic and pneumatic machines.
Teachers provided instructions for the base. From there, students made their own adjustments through a cycle of design → build → test → improve, keeping one function in mind: lifting different materials.
There was something concrete to test—not just whether a model looked finished, but what it could do. Each round gave teams another opportunity to consider a change.
The finished machine is only part of the story. The decisions made along the way matter too.
CGK Afterschool programme: Grades 1–9.
From CGK Times, August 2026. More school stories: website in our profile.
A campsite indoors. Real opportunities to share. ⛺
When summer heat limited time outside, our teachers brought Jungle A and B Classes (3-year-olds) together for an indoor camping adventure.
Children caught pretend fish, cooked on a DIY barbecue and roasted cotton-ball marshmallows over a pretend fire. Tents and sand slime added opportunities to imagine, touch and explore.
The teachers planned the stations with a purpose: sharing with children from both classes. “Share, please” and “Wait, please” were part of the play as children took turns.
The campsite was make-believe. The practice in patience, communication and kindness was real.
From CGK Times, August 2026. More school stories: website in our profile.
Meet our workshop exhibitors! 🎨 School Festival 2026 — introductions, round 2
• Becca Dufie @becca.dufie — Painting and creative expression (Oct 24–25) • Mariella @mariella_japan — Ocean resin art (Oct 24) • Atelier Theresia @ateliertheresia — Handmade creations (Oct 25) • Michel Art School @michel_art_school — Creative art for children (Oct 24–25) • The Tome of Masa @thetomeofmasa — Create your own four-panel manga (Oct 24–25) • Sofi*a style @sofia_style_maiko — Halloween wreath making (Oct 25) • LIA LAB @lialab_official — Multilingual craft activities (Oct 24) • Happy Beans @happybeans_englishsitter — Make your own bag charm (Oct 24)
Oct 24–25, 2026 | 10:00–14:30 | CGK Kannai Campus, Yokohama Free admission; workshop fees apply. No advance booking needed for entry. Details via our profile`s Website link → School Festival. Photos include examples of exhibitors` work. Offerings and dates may change.
Film-making, collaborative art, plant exploration, two field trips, a harvest festival and Halloween: choose your days and join us for as little as one day.
Grades 1-6 with previous English-learning experience October 13, 14, 15, 16, 23 and 26 CGK Kannai Campus, Yokohama Regular days 10:00-14:00 / Field-trip days 10:00-16:00
CGK families: Autumn School also runs on October 23 and 26, the School Festival substitute holidays for CGK students.
See the programme and fees via Website in our profile, then Seasonal School. Book by 17:00 on the business day before attendance; bookings close when full.
For children aged 2–5, what does inquiry look like in the early years?
At CGK International School in Yokohama, children learn through questions, play, relationships, and hands-on experiences. Our Open School introduces families to the IB PYP approach, daily life at our international preschool, and the care and learning environment children experience at CGK.
■ Saturday, October 3, 2026 9:00–10:30 | Japanese 11:15–12:45 | English & Japanese ■ CGK International School, Kannai Campus ■ Advance registration required; capacity is limited.
Art, light, movement—and learning beyond the classroom.
At teamLab Borderless, CGK Middle School students explored how technology can become creative expression. Sharing the experience also meant practising communication, collaboration and self-management.
Sky Class (5-year-olds) explored world flags, cultures and the history of places, then created airplanes and boats of their own. Curiosity about the world became thinking and making.
CGK Afterschool students explored six types of simple machines around the school, then used their discoveries to begin building hydraulic and pneumatic machines in teams.
初の2日間開催！／Our first-ever TWO-DAY festival! 📅 2026年10月24日(土)・25日(日)／Oct 24 (Sat) & 25 (Sun), 2026 ⏰ 各日10:00–14:30／10:00 AM–2:30 PM each day 📍 CGKインターナショナルスクール関内校／CGK International School, Kannai Campus
在校生・ご家族はもちろん、一般の方も大歓迎！ ゲーム、音楽・パフォーマンス、さまざまなブースを、ご家族やお友だちと楽しみませんか？ Everyone is welcome! Bring family and friends for games, music, performances and fun booths.
入場無料・事前予約不要。当日は受付でLINEでの参加登録をお願いします。 FREE admission; no advance booking required. Please register via LINE at reception.
出展者9組をご紹介！／Meet our nine vendors: ① タルトリーアルベール／Tarterie ALBERT｜タルト＆キッシュ／Tarts & quiches｜24–25 @tarteriealbert ② ルカデリ オーガニックキッチン／Luca Deli Organic Kitchen｜オーガニックBento／Organic bento｜24–25 ③ バックヤードコーヒージャパン／Backyard Coffee Japan｜コーヒー＆国産抹茶／Coffee & Japanese matcha｜24–25 @backyardcoffee.japan ④ 新緑／Shinryoku｜おにぎり＆お惣菜／Onigiri & deli dishes｜24のみ／only @shinryoku_onigiri ⑤ メゾンエスティア／Maison Hestiā｜オーガニック素材のケーキ＆パン／Organic cakes & breads｜24–25 @maison_hestia_ ⑥ 101美食／101 Bisyoku｜ダージーパイ／Taiwanese fried chicken cutlet｜24のみ／only ⑦ Mogu Mogu 横浜元町本店／Mogu Mogu Yokohama Motomachi｜お弁当＆お惣菜／Bento & deli dishes｜24–25 @mogumogumotomachi ⑧ オーガニックわたあめ わっしょい／Organic Cotton Candy Wasshyoi｜無添加わたあめ／Additive-free cotton candy｜24–25 @wassyoi_nouen ⑨ つながる青木堂／Tsunagaru Aokido｜神田須田町から参加するイベントプロジェクト／An event project from Kanda-Sudacho｜25のみ／only @syuhey.ohtsuka ※数字は10月の出店日です。／Dates above are in October.
一昨年（2024年）のSchool Festivalの様子はこちら！ Watch our School Festival from two years ago (2024): https://www.youtube.com/watch?v=J79pXK8fFs8
掲載順不同。出展者・出店日・内容は変更になる場合があります。 Listed in no particular order. Lineup, dates and offerings may change.
Learning does not only happen inside the classroom.
CGK Middle School students observed the structure, height, shapes, patterns, and design of Tokyo Tower. The visit gave them a chance to see how mathematical ideas from class are used in the design and construction of a landmark they could experience for themselves.
Looking at a familiar city from a new perspective can make mathematics feel much more tangible.
A new school meal can feel like a very big experience when you are two. At CGK, we approach that transition with curiosity, play, and patience. 🍎
Ocean Class explored food through picture books, conversations about favorite fruits and vegetables, pretend picnics and meals, and hands-on sensory experiences. Real vegetables invited close observation; colorful spaghetti became an art material; a pretend farm helped children consider where food comes from.
These activities do more than introduce nutrition. Touch, texture, language, and shared play help young learners understand the world, express preferences, collaborate with friends, and approach unfamiliar foods with growing confidence.
Thoughtful early-years education meets children where they are. By letting them first explore food through familiar stories, sensory play, and imagination, teachers support wellbeing and a positive relationship with new experiences.
12+4-Year Continuum Education
IB Education
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