Grid-based interface
A 24×30 cell grid that formats your calculations as you type, addition, subtraction, multiplication and division, all in the primary-school column method.
A keyboard-only arithmetic worksheet built for students with motor impairments. Type a calculation, press Enter and solve it in a primary-school column layout.
Built for one student at UAS Campus Vienna. Designed to work for anyone who learns best with a keyboard and a structured layout.— Research Project Goal
Every interaction designed around one principle: never take your hands off the keys.
A 24×30 cell grid that formats your calculations as you type, addition, subtraction, multiplication and division, all in the primary-school column method.
Reformat equations automatically into a vertical layout.
Bright tones confirm correct answers, soft tones flag rejected keys.
Print plain-text sessions and worksheets with a single button.
Ctrl + Z up to 50 steps back.
Your session restores automatically on reload.
Pure HTML, CSS and ES modules. No tracking.
Auto-formatting and jumping cells, audio cues and a high-contrast color palette. Built for motor impairments, useful for anyone who benefits from structure.
No menus, no mouse, no hunting for buttons.