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Power of 10 Math Kit — $34.99 · Arrives in 3–5 business days
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Loved in 100+ classrooms  ·  Safety-certified for ages 5+  ·  Seen at Didacta Italia 2024
Built in real classrooms · 5 years

Math children can hold.

COTOY builds math children learn by touching, moving, and building — turning abstract numbers into real understanding. Proven in 100+ schools. Now yours to bring home.

⭐ Trusted by 100+ schools  ·  Exhibited at Didacta Italia
COTOY Power of 10 place value math kit
5+ Ages · K–Grade 3
5+
YEARS IN CLASSROOMS
100+
SCHOOLS SERVED
1000s
STUDENTS TAUGHT
2024
DIDACTA ITALIA, PARMA
Who we are

We built it for our own lessons.
Then schools put it in the curriculum.

For five years, COTOY has run the Magic of Mathematics program inside 100+ schools — a trained team of instructors, a full Grade 1–6 curriculum, and hands-on tools built on real learning science (Vygotsky & Bruner).

The tools were made for our own classrooms first. Schools began buying them for theirs — and built them into the curriculum. Then parents asked for them at home. Power of 10 is the first one released to families worldwide.

Explore the program →
Children building numbers on COTOY Power of 10 boards with their teacher
The COTOY way

Children don't memorize numbers. They build them.

The three-step method behind every COTOY tool — and why it makes math finally click.

👁️

See it

Color-coded, tactile pieces make abstract math visible and physical.

Build it

Children construct every number with their own hands — no worksheets.

💡

Understand it

The “aha” moment sticks for life, because they felt it happen.

Power of 10 box
★ FLAGSHIP PRODUCT

Power of 10

The place-value kit that turns 10 ones into 1 ten — and makes it click. Board, 50 color-coded coins, 76 cards, 7 progressive levels.

$34.99 $39.99
  • Hands-on place value: build, exchange, discover
  • 7 progressive levels, ages 5–8 (great for Grade 3 catch-up)
  • 76 cards · 50 coins · sturdy board · 24-page guide
  • Screen-free, classroom-proven learning
🛡️ ASTM F963CE CertifiedLead-freeCommon Core K–2
Proof, not promises

Trusted where it matters most — real classrooms.

From schools across the country to the Didacta Italia education fair in Parma.

COTOY at Didacta Italia Parma 2024
COTOY at Didacta Italia — Parma, 2024
★★★★★

“COTOY's interactive approach made even difficult math concepts simple — and it broke down the barriers our students used to feel toward math, replacing them with real drive and determination.”

Mustafa Abu Bakr & the Math Department, Al-Khansaa School
★★★★★

“An exceptional experience in every sense. The children feel like they're just playing — but they're actually building real math skills and sharpening their thinking, smoothly and joyfully.”

Damris Hazan, Sheikh Danon School
Loved by educators

What teachers & schools say.

Real feedback from the classrooms and schools where COTOY is used every day.

★★★★★

“The first time we truly saw how well-suited and genuinely useful these materials are. The COTOY team gives from the heart and enriches our community with real teaching expertise.”

Hanan Hazboun, Mizraa School
★★★★★

“The COTOY games and activities made learning so much more fun and meaningful — they turned math into some of our students' happiest memories, brought to the children with real love and creativity.”

Farah Ghadir, Bir al-Maksur School
★★★★★

“We saw real professionalism and commitment throughout the entire program — and it genuinely benefited our students. Delivered beautifully, with steady support that made all the difference.”

Math Department, Al-Mustaqbal School
★★★★★

“COTOY enriched our students with genuinely out-of-the-box learning materials, and the feedback from our teachers was all positive. It's the kind of program that truly raises children's level in math.”

Math Department, Al-Mutanabbi School
★★★★★

“A day of purposeful planning and outstanding execution — it boosted our students' motivation to learn in a way that was both fun and meaningful.”

Administration, Al-Manara School
★★★★★

“A day like no other — the activities were beautifully done, genuinely useful, and so motivating for the kids. Fun and real learning at the same time.”

Yasmin Ghabin, Math Teacher
★★★★★

“The Magic of Mathematics program truly enriched our third and fourth graders — the activities were wonderful, and they turned arithmetic into something our students genuinely enjoyed.”

Al-Rawad School
This is just the beginning

Power of 10 is the first of the full COTOY system.

The complete K–6 math toolkit — proven in classrooms, arriving for home, one product at a time.

⚖️

Balance Scales

Equations & algebraic thinking

Coming soon
🍕

Fraction Kits

Fraction pies & rectangles

Coming soon
📐

Geometry Game

Angles, shapes & polygons

Coming soon
🧮

COTOY Numbers

Counting & operations

Coming soon
🎲

Board & Carpet Games

Play-based practice

Coming soon
🔢

Decimal Board

Place value to millions

Coming soon

Give your child math they'll never forget.

Join the classrooms who already have.

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Power of 10$34.99
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