Primary


Trios Lab
22 rooms · Learn to identify valid trios step by step.
Primary Combinatorics
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Symmetry Lab
22 rooms · Explore axial symmetry and create mandalas
Primary Symmetry Geometry
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Euler's walk
23 rooms · Drawing without lifting the pencil: the magic rule of Eulerian graphs.
Primary Graphs
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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
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12 25 17 14 18 18 6 30 7 24 5 13 11 23 42 🐰 🥕
Number mazes
16 rooms · Cross mazes stepping only on multiples of a number, and later by solving operations along the way.
Primary Mazes Operations
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Coins
19 rooms · Slide coins to turn one figure into another.
Primary Logic Puzzles
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Secondary


x y
Linear functions
12 rooms · Lines y = m·x + n. Slope, intercept and graph recognition.
Secondary Functions
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Brachistochrone: the fastest curve
9 rooms · Discover why the fastest curve is not the shortest.
Secondary Curves
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The catenary
8 rooms · The hanging chain, bridges and Gaudí's arches.
Secondary Curves Architecture
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Ageing
8 rooms · Gompertz, cells and mitochondria: the mathematics of ageing.
Secondary Aging Biology Modelling
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Weather & Climate
8 rooms · Pressure, wind, rain and hurricanes: control the Iberian Peninsula's weather with real physics.
Secondary Climate Geography Modelling
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5 10 ?
Exchanges and invariants
19 rooms · Can you get from here to there? If not — what stops you?
Secondary Invariants Modular arithmetic
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? + 3 = 15
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
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la edad de mi padre es... x + 2 🧒 👨 x x + 2
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
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Lines that form curves
15 rooms · When many lines touch each other, they trace parabolas, hyperbolas, cardioids, astroids…
Secondary Curves
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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
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A B C D E F G H D E F G H I J K
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
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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
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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
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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
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High school & University


A B C D E D E F G H +3 RSA
RSA Cryptography
27 rooms · Learn the RSA algorithm step by step: Caesar cipher, modular arithmetic and Euler's φ function.
High school & University Cryptography Modular arithmetic
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Neural Networks
29 rooms · Build, train and watch artificial neurons: weights, sigmoid, gradient descent, backprop. No manual calculation — everything is automatic, you design.
High school & University Neural networks AI
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Chaos
10 rooms · Deterministic systems you still cannot predict.
High school & University Chaos Physics
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1 0 1 1 0 1 H · log₂
Information
22 rooms · How information is measured, encoded and protected from noise. Hartley, Shannon, Hamming.
High school & University Information Codes
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☀️ ☁️ 🐸
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.
High school & University Probability Modelling
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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 & University Modelling Biology
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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 & University AI
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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 & University AI
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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 & University Geometry
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4D
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 & University Geometry Fourth dimension
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function setup () {'{}'} createCanvas background (30) } function draw () { fill ( 255 ,0,0) circle (mouseX, mouseY, 30) }
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 & University tag_programacion tag_informatica
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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 & University AI Neural networks Upper secondary
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