Our Apps
🧮
Infinite Column Calc
Generate endless addition, subtraction, and multiplication worksheets with the Japanese "Grid Method" for perfect alignment.
Math
⚡
100-Grid Speed Math
The famous Japanese "Kageyama Method" for improving calculation speed and focus. Try to beat your best time!
Speed Math
⏰
Clock Master
Visual tools to teach reading time and calculating duration.
Time
👋 Meet the Team
Shin-sensei
Teacher / Founder
Gem-emon
Dev Partner / Mascot
Hi! We are a teacher & developer duo based in Kyushu, Japan.
Our mission is to bring "Japanese Style" precision and simplicity to classrooms around the world.
Made with ❤️ by a teacher in Kyushu, Japan.