An afterschoool program to nurture high-level critical thinking skills and a spirit of inquiry in elementary students.
Venture into a New World! Real Inquiry-based Activities
CGK Preschool, well-respected as a center for global education in childcare and early childhood education, pursues deeper learning to raise children's Self-expression, Critical Thinking Skills, and a Spirit of Inquiry. We provide a place for people to feel close to the world, to look at the world as a global citizen, and to envision a future where everyone can be happy.
Features of CGK Afterschool
Point 01
Raising Real Global Kids
Focusing not only on English ability, but also on raising “Real Global Kids” with Self-expression, Critical Thinking Skills and a Spirit of Inquiry. Our programs are made for the children to express themselves, to research their curiosities and to think deeply.
Point 02
Not a Place to Study English
The children already have good English language skills so instead of spending a lot of time studying English, we emphasize learning in English. We seek to find enjoyment through the learning of different topics in the English language, instead of simply enjoying English. As a general rule, the classroom is an English-only environment.
Point 03
English Ability will be Checked
In order to further develop “global education” at CGK Preschool where we nurture Self-expression, Critical Thinking Skills and a Spirit of Inquiry, part of our enrollment selection process will be to check the student’s English ability. Our curriculum is designed without language barriers.
Point 04
A Fun and Lively Place to Enjoy Advanced Learning
The students experience learning on a daily basis that stimulates critical thinking skills and a spirit of inquiry, based on communication skills (self-expression) essential for active learning. Enjoy learning and get excited about the new world ahead.
Real Global Kids with Self-expression, Critical Thinking Skills and a Spirit of Inquiry
The Ability to Express Yourself to Others
Rather than surface language skills, we place importance on the ability to understand other people's ideas, conveying their own ideas and engaging in dialogue.
They will also give presentations and hold discussions in order to them develop necessary English skills.
The Ability to Create without Convention
Through the understanding and tolerance of diversity and the use of critical thinking skills to think outside the box, children can develop the ability to find new paths on their own, while still being conscious of the need for both cooperation and independence.
Endless Motivation Toward the Future
Through various activities that will broaden their horizons, we'll nurture interest in a new world and open up endless possibilities for the future. We value excitement towards learning and wanting to know more.
School Information
Name
CGK International School – Afterschool
Location
2-25-2 Minaminakadori, Naka-ku, Yokohama, Kanagawa (Greater Tokyo) 231-0006, Japan
Number of Students per Day
Around 15 per class (3 classes per day)
Age
Elementary school 1st - 6th grade *Advanced course is for 5th grade to 9th grade students.
School Days
Monday to Friday
School Hours
2:30-7:00pm *6:00-7:30pm for Advanced course
School Holidays
Saturday, Sunday, National holidays, Golden Week (1 week), Obon holidays (a few days), New Year holidays (1 week)
Kannai Campus Layout
Access
4-minute walk from Bashamichi Station (馬車道駅) on the Minatomirai Line (directly to/from the Tōyoko Line and Fukutoshin Line)
5-minute walk from Nihon-ōdōri Station (日本大通り駅) on the Minatomirai Line (directly to/from the Tōyoko Line and Fukutoshin Line)
5-minute walk from Kannai Station (関内駅) on the Yokohama Municipal Subway Blue Line
7-minute walk from Kannai Station (関内駅) on the JR Keihin-Tōhoku Line
School Bus Pick up
We provide a pick-up service from eligible elementary schools ("After-school Kids Clubs"), etc.
We will pick up students at the end of elementary school's 5th period. Any other time of day the students will need to make their own way to CGK Afterschool.
Please note pick-up times vary and we do not provide drop-off service to your home.
Eligible facilities
Some public elementary schools in Naka, Nishi and Minami wards (please inquire for details)
This is a service that allows children over 4 years old to use a taxi alone. This service is available at no extra charge with advance registration. The taxi company in charge differs depending on the area you live in, so please refer to the following and contact them directly.
Please be sure to contact CGK Afterschool before using the taxi service for childcare.
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.
Sky Class began with one farming experience: planting seeds in soil at a traditional farm. Their next visit looked completely different. Inside an LED farm, our five-year-olds observed vegetables growing with water, nutrients, and carefully controlled light.
The value was not simply seeing new technology. Students compared two systems, asked questions, connected new observations with previous experience, and considered how innovation can change the way communities produce food.
Then inquiry became something they could taste. At the LED restaurant, children designed pancakes with ingredients grown at the farm, connecting a method of cultivation directly to the food on their plates.
Through the IB Primary Years Programme unit Where We Are in Place and Time, history and innovation became visible, memorable—and delicious.
A first presentation is more than a final product—it is a first step toward sharing ideas with confidence. 🎤
During Term 1, our Afterschool students explored original cities, the human body, fantasy worlds and careers, life in the future, and space. Behind every recorded presentation was a full learning process: planning time, creating, preparing what to say, and finding the courage to speak to an audience.
Grade 2 students also became supportive role models for their new Grade 1 classmates, patiently helping them learn how to use unfamiliar tools safely and responsibly.
Some students began the term feeling shy or uncertain. Every one of them completed the challenge.
At CGK Afterschool, creativity, practical skills, collaboration, and confidence grow together—one project at a time.
“I did it by myself!” can be a small sentence with a big meaning.
For our three-year-olds in Jungle Class, learning to wear the new school uniform became a lesson in independence. Before the first uniform day, children explored what a uniform is and practised finding sleeves, fastening buttons, and turning clothes the right way out.
Teachers demonstrate when needed, then leave space for each child to pause, try again, and solve the next step. With more opportunities to change for water play, everyday routines become authentic chances to build coordination, persistence, and confidence.
At CGK, thoughtful care includes giving children room to say, “Let me try,” while making sure support is always close by.
Each button fastened is more than a practical skill. It is another experience of “I can.”
What happens when your country has plenty of oil—but not enough food?
In Grade 4, students created their own countries, complete with names, flags, cities, and cultures. Then the Continental Council began.
With limited resources, the students had to trade, negotiate, cooperate, and protect their communities. Unexpected events added another layer of complexity, reminding them that real decisions rarely come with one perfect answer.
Connected to the IB transdisciplinary theme Sharing the Planet, this project transformed global relationships from something students read about into something they could experience, question, and understand.
At CGK, learning is not only about knowing more. It is about thinking carefully, listening to different perspectives, and making responsible choices.
In Mountain Class, our four-year-olds are not simply memorizing the alphabet. Beginning with SATPIN, they explore how letters look, how they sound, and how sounds connect to make meaning.
Through rhymes, sound blending, hands-on learning centers, and purposeful play, children discover patterns and begin to read and write with growing independence. Teachers observe each learner carefully and adjust the challenge to their individual stage and interests.
This is inquiry-based early literacy at CGK: strong foundations, joyful participation, and the confidence to ask, try, and keep learning.
＼Now Accepting Applications for the 2027 School Year!／ 2-Year-Old and 3-Year-Old Classes
CGK International School will hold an admissions information session for families considering enrollment in our 2-year-old and 3-year-old classes for the 2027 school year.
📅 Open School Saturday, August 22, 2026
【Session 1】9:00–10:30 AM（Japanese） 【Session 2】11:15 AM–12:45 PM（English and Japanese sessions held concurrently）
Families contacting CGK for the first time are required to attend an admissions information session before submitting an application. This will be the final open school before the admissions screenings for the 2027–2028 school year, scheduled for September 2026. Families considering enrollment are encouraged to join us on August 22!
【Admissions Screenings for the 2027-2028 school year】 📅 Scheduled for Saturday, September 5 and Sunday, September 6 📝 Application deadline: Monday, August 31
If all places are filled, later applicants will be waitlisted.
👱Classes Open for 2027 Enrollment ・2-Year-Old Class Children born between April 2, 2024 and April 1, 2025 ・3-Year-Old Class Children born between April 2, 2023 and April 1, 2024
📱Register for the information session via LINE!
We look forward to welcoming you!
＼2027年度入学 2歳児・3歳児クラス募集中！／
CGK International Schoolでは、2027年度(2027年4月～2028年3月)に2歳児クラス・3歳児クラスへのご入学を希望されるご家庭を対象に、入学説明会を開催いたします。
🌻CGK Summer School 2026🌻 \ A summer of fun in English starts here【Summer School Sign-ups Open!】 /
We`re excited to share that CGK Summer School is offering an exciting 25-day summer program, exclusively at CGK Summer School! This year, we`re introducing 14 brand-new programs, including science experiments & inventions, arts & crafts, sports & games, and field trips.☀️ Our programs will be led by CGK teachers you know and trust, and we offer company collaboration programs that connect learning with the real world. All of this takes place in a fun, English-immersive environment where kids play, learn, and grow. Spark your child`s curiosity, help them discover new passions, and let them take on exciting new challenges — all while having a blast.✨ We look forward to welcoming you this summer!
■ Dates: Friday, July 17 – Wednesday, August 26 ■ Theme: Learning through Play = Inquiry-Based Program (PBL: Project-Based Learning) ■ Format: Flexible one-day programs — join on the days of your choice ■ Fee: From ¥8,800 per day (tax included) ■ Designed for: Elementary school students with prior English learning experience
Participation with siblings or friends are also welcome🎵 ▼Program details & registration: Check out stories and highlight!!
Thanks to our connection from the 2025 CGK School Festival, we served delicious onigiri from Kappo Onigiri Shinryoku for our preschool snack time.
When the children woke up from their naps and saw the onigiri, they excitedly shouted, “Onigiri!” Each child decided whether to wrap it with seaweed and enjoyed eating it in their own way.
At CGK, meals and snack time are also important learning moments. We value our connections with wonderful local businesses and hope to continue sharing delicious and healthy snacks with our children. Read more on our school blog.
🍙 Preschool Snack Time at CGK 🍙
2025年のCGK School Festivalでご縁をいただいた「割烹おにぎり新緑」さんのおにぎりを、プリスクールのおやつとして提供しました！
🌸CGK Spring School 2026🌸 \ Now accepting applications!/
This spring, experience 16 special days you can only find at CGK Spring School, filled with exclusive programs and exciting new friendships🎨🚀🌈🏃♀️ With many brand-new days launching this year, it`s the perfect opportunity to try something new, and we warmly welcome new 1st graders to join us as well. Before the new school year begins, come meet friends from different schools and enjoy playing, learning, discovering, and taking on new challenges — all in English✨
■ Dates: Monday, March 16 – Tuesday, April 7 ■ Theme: Learning through Play = Inquiry-Based Program (PBL: Project-Based Learning) ■ Format: Flexible one-day programs — join on the days of your choice ■ Fee: From ¥8,800 per day (tax included) ■ Designed for: Elementary school students with prior English learning experience
Participation with siblings or friends are also welcome🎵 ▼Program details & registration: Check out stories and highlight!!
At CGK Preschool, based on the IB inquiry approach, we nurture children’s curiosity — “Why?” and “Let’s try!” Through play, children develop thinking skills, communication skills, and the courage to take on new challenges.
🌟3-year-old class (Born April 2, 2022 – April 1, 2023) April enrollment is still available!
The next session for the 2026 academic year is planned for around May (TBD).
Our 2025 Winter School program is now accepting applications for elementary aged students! Wrap up the year with friends old and new in a stimulating fun environment✨ Join us across four exciting days filled with fun activities—our always-popular field trip, a Christmas party, and so much more🎅🎄 If you`re interested in CGK, our Seasonal School is the perfect place to start. Let’s finish the year by exploring, thinking, and expressing ourselves together🌄
■ Dates: Monday, December 22 – Wednesday, December 24 and Monday, January 5. ■ Theme: Learning through Play = Inquiry-Based Program (PBL: Project-Based Learning) ■ Format: Flexible one-day programs — join on the days of your choice ■ Fee: From ¥8,800 per day (tax included) ■ Designed for: Elementary school students with prior English learning experience
▼Program details & registration: Check out stories and highlight!!
