Primary
Trios Lab
22 rooms · Learn to identify valid trios step by step.
Primary
Combinatorics
Copiado
Euler's walk
23 rooms · Drawing without lifting the pencil: the magic rule of Eulerian graphs.
Primary
Graphs
Copiado
Symmetry Lab
22 rooms · Explore axial symmetry and create mandalas
Primary
Symmetry
Geometry
Copiado
Coins
19 rooms · Slide coins to turn one figure into another.
Primary
Logic
Puzzles
Copiado
Mazes
20 rooms · Walk through famous mazes around the world and learn the tricks to never get lost: right-hand rule, Tarry and Trémaux.
Primary
Mazes
Graphs
Algorithms
Copiado
Number mazes
16 rooms · Cross mazes stepping only on multiples of a number, and later by solving operations along the way.
Primary
Mazes
Operations
Copiado
Polyominoes
23 rooms · Dominoes, trominoes, tetrominoes and pentominoes: cover shapes, prove things with colorings, count ways to fit pieces, and design your own challenge for a classmate.
Primary
Combinatorics
Logic
Polyominoes
Copiado
Secondary
Equations · The hidden number
15 rooms · Guess the number I am thinking of. Learn to read linear equations and undo operations to solve them.
Secondary
Equations
Algebra
Copiado
Polynomial and rational functions
19 rooms · From lines to hyperbolas: graphs, domain, range and how each parameter changes them.
Secondary
Functions
Copiado
Equations · From the story to the equation
13 rooms · Learn to translate a word problem into an equation. Variables, expressions and the key equality that leads to the answer.
Secondary
Equations
Word problems
Copiado
Brachistochrone: the fastest curve
9 rooms · Discover why the fastest curve is not the shortest.
Secondary
Curves
Copiado
Linear functions
12 rooms · Lines y = m·x + n. Slope, intercept and graph recognition.
Secondary
Functions
Copiado
Lines that form curves
15 rooms · When many lines touch each other, they trace parabolas, hyperbolas, cardioids, astroids…
Secondary
Curves
Copiado
Exchanges and invariants
19 rooms · Can you get from here to there? If not — what stops you?
Secondary
Invariants
Modular arithmetic
Copiado
Propagation
14 rooms · How something spreads — a rumour, a virus, a wildfire — through a network or a map: links, hubs, and the famous threshold.
Secondary
Graphs
Percolation
Cellular automata
Copiado
Epidemic
17 rooms · How a disease spreads: from the simple SIR model to real COVID data. Along the way, cellular automata, vaccines, lockdowns and social networks.
Secondary
Biology
Graphs
Percolation
Cellular automata
Copiado
The catenary
8 rooms · The hanging chain, bridges and Gaudí's arches.
Secondary
Curves
Architecture
Copiado
Ageing
8 rooms · Gompertz, cells and mitochondria: the mathematics of ageing.
Secondary
Aging
Biology
Modelling
Copiado
Weather & Climate
8 rooms · Pressure, wind, rain and hurricanes: control the Iberian Peninsula's weather with real physics.
Secondary
Climate
Geography
Modelling
Copiado
Order from chaos
23 rooms · Four completely different mechanisms of the same principle: with only simple local rules, random noise spontaneously reorganizes into patterns. Spirals, flocks, sync, fractals.
Secondary
Chaos
Cellular automata
Modelling
Copiado
Powers, exponentials and logarithms
22 rooms · From counting factors to graphing curves: the properties of powers, the exponential function that always ends up winning, and the logarithm as its inverse question.
Secondary
Powers
Functions
Copiado
Phantom traffic jams
13 rooms · A traffic jam can appear with no crash, roadworks or traffic light. Find out why.
Secondary
Chaos
Modelling
Cellular automata
Upper secondary
Copiado
Cipher zoo
17 rooms · Six historical ciphers for hiding messages: from the reversed Hebrew alphabet to the American telegraphers' zigzag. Ends with 3 camp cryptographer missions.
Secondary
Cryptography
Copiado
High school
Function analysis
21 rooms · From function families to their full graphical analysis: domain, extrema, limits and discontinuities, with zoom to see them up close.
High school
Calculus
Functions
Copiado
Circular Trigonometry
25 rooms · Sine and cosine are born from a point going round a circle. From the unit circle to sound waves, ellipses, the double angle and polar coordinates — and along the way, how a computer draws a circle.
High school
Trigonometry
Functions
Geometry
Copiado
The fourth dimension
17 rooms · Regular polyhedra exist in 4D: tesseract, hexadecachoron, icositetrachoron… Rotate their 3D shadows to imagine what they look like.
High school
Geometry
Fourth dimension
Copiado
Information
22 rooms · How information is measured, encoded and protected from noise. Hartley, Shannon, Hamming.
High school
Information
Codes
Copiado
Training the AI to play
20 rooms · How does a machine learn to play with nobody teaching it the strategy? Boxes of beads that reward and punish moves discover perfect play on their own — from the stone game to Hexapawn to a teamwork game with no single solution.
High school
AI
Copiado
Train your network
7 rooms · Design a spaceship's sensors and train it by playing: your moves become training examples for a neural network that learns to dodge bombs and collect stars.
High school
AI
Neural networks
Upper secondary
Copiado
Chaos
10 rooms · Deterministic systems you still cannot predict.
High school
Chaos
Physics
Copiado
Turing patterns
12 rooms · Turing and Gray-Scott reaction-diffusion. Spots, stripes and mazes emerge from two substances that diffuse and react. Design the pattern of your own animal.
High school
Modelling
Biology
Copiado
Curved worlds
24 rooms · The geometry you learned is not the only one: it depends on the shape of space. Measure triangles on the plane, the sphere and the hyperbolic world to discover three different geometries.
High school
Geometry
Copiado
The derivative
32 rooms · From visual intuition to calculation: slopes, limits, numerical differentiation and rules.
High school
Calculus
Functions
Copiado
Create with p5.js
35 rooms · Learn to program animations and interactive images with p5.js. From your first shape to your own functions, all with live code and result.
High school
Programming
Copiado
Population Models
17 rooms · Foxes, rabbits and equations that pulse. From individual agents to three-species chaos: why populations oscillate and what they share with the three-body problem.
High school
Differential equations
Biology
Modelling
Copiado
Axelrod's tournament
16 rooms · Why does cooperation emerge among selfish players? From the one-shot prisoner's dilemma to a tournament of strategies, to the evolution that rewards the best scorers. Rebuild Axelrod's experiment and discover why winning every duel is not winning the tournament.
High school
AI
Copiado
Infinity
24 rooms · Sheep, impossible hotels and a vase that empties itself: a journey through infinity, from the classic paradoxes to the different sizes of infinity and the strange Cantor set.
High school
Logic
Set theory
Copiado
Logic
24 rooms · Circuits, truth and lies, sets: learn the logic operators by building them.
High school
Logic
Copiado
Functions: concept, domain and range
16 rooms · What is (and isn't) a function, injective/surjective/bijective, and how to find the domain of a real function.
High school
Functions
Copiado
University
Markov chains
20 rooms · Predicting the weather, Bitcoin, your next word, and which web pages matter — all with one idea: tomorrow depends only on today.
University
Probability
Modelling
Copiado
Neural Networks
29 rooms · Build, train and watch artificial neurons: weights, sigmoid, gradient descent, backprop. No manual calculation — everything is automatic, you design.
University
Neural networks
AI
Copiado
RSA Cryptography
27 rooms · Learn the RSA algorithm step by step: Caesar cipher, modular arithmetic and Euler's φ function.
University
Cryptography
Modular arithmetic
Copiado
Function interpolation
29 rooms · Approximate unknown values from known data: from the tangent line to Lagrange, Newton, Taylor and cubic splines.
University
Calculus
Functions
Numerical analysis
Copiado
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