About NumDojo
Where ancient wisdom meets modern learning
NumDojo was created with a simple mission: make mental math a superpower that anyone can develop. We combine centuries-old speed calculation techniques with modern gamification and spaced repetition to create an engaging learning experience for students ages 8–18.
Vedic Mathematics
Ancient Indian techniques for lightning-fast mental calculations, from multiplication to square roots.
Trachtenberg System
A systematic method for rapid mental multiplication without memorizing tables.
Soroban
Japanese abacus visualization techniques for instant arithmetic and Flash Anzan training.
Community
Real-time battles, leaderboards, guilds, and tournaments make learning social and competitive.
Our Approach
Every lesson in NumDojo follows a structured path: learn the technique, watch worked examples, practice with guided problems, then challenge yourself in timed drills and battles. Our spaced repetition system ensures you retain what you learn, while gamification (XP, levels, badges, streaks) keeps motivation high.
For Educators
NumDojo includes a Teacher Dashboard with classroom management, assignment creation, student analytics, and progress tracking. If you're an educator interested in using NumDojo in your classroom, contact us at educators@numdojo.com.