Before you start
Most popular
Era Quest Visit five eras of mathematics, solve the mathematicians’ own problems, and make a decision to see what followed.
Famous Problem Solve a great mathematician’s own problem — how Gauss summed 1 to 100, how Eratosthenes measured the Earth — step by step.
Discovery Timeline Put the great mathematical discoveries in order — earliest first — then the dates are revealed.
Lore Duel A head-to-head kit round for 2–4 players — one device or an online room by code. Highest first-try score wins. All activities
Explore & solve
Era Quest Read what each of five eras was like, solve the mathematicians’ own problems, and decide what happens next. Famous Problem Work a great mathematician’s own problem step by step — hints guide your thinking but never hand you the answer. Discovery Timeline Order the great discoveries by what you know, then see the real dates revealed.
Play & practice
Practice the history
All 16 kits
Kit 1: Ancient Number Systems Kit 2: Babylonian and Egyptian Mathematics Kit 3: Mayan and Aztec Mathematics Kit 4: Indian Mathematics: Zero and Algebra Kit 5: Islamic Geometric Art and Patterns Kit 6: African Mathematics and Fractal Geometry Kit 7: Asian Mathematics: Origami, Tangrams, and Beyond Kit 8: Master Ethnomathematician Capstone Kit 9: Elements & Principles Deep Dive Kit 10: Cultural & Historical Context Kit 11: Creative Process & Critique Kit 12: Professional Practice & Careers Kit 13: Cross-Topic Connections Kit 14: Real-World Applications Kit 15: Misconceptions & Reasoning Kit 16: Advanced Synthesis
For grown-ups — progress report →
More ways to play
😄 Brain break
Meet the cast — the characters who teach this
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Heap Counting-as-first-story — every people figured out their own way to count -
Spire Pattern-as-discovery — patterns are everywhere when you slow down enough to see them -
Vouch Proof-as-shared-knowledge — show me why; if your why holds up, I'll build on it -
Home Math-as-cultural-context — this idea was born somewhere, for someone, with reasons -
Carry Cultural-transmission — the idea traveled; every place it visited, it grew -
Dozen Number bases (counting in twelves, tens, or twos — the base is a choice) -
Etch The invention of notation (writing math down so ideas can travel across time) -
Frontier Mathematics is unfinished (there are still open questions no one has answered) -
Naught The invention of zero (a symbol for nothing that changed everything) -
Warp Math in everyday craft (the geometry hidden in weaving, building, and making)
Ensemble stories — the cast together