Official curated learning paths
The rooms that go with the maths labs, from arrows on a grid to how a language model picks its next word. Play a warm-up before its lab, and the rest alongside it.
The rooms that go with the computing labs, in the order the labs run: circuits, then logic gates and a CPU, then programs, then version control. Play a warm-up before its lab, and the rest alongside it.
🐸 From FrogaThis learning path covers how to protect computers, networks, data, and online communications from unauthorized access, attacks, and misuse.
Learning sequences created by the community

What Words as arrows builds on: why a computer needs words as numbers, when two arrows point the same way, subtracting one arrow from another, and analogies in plain words. About ten minutes.

A look at what can go wrong when several transactions touch a database at the same time, and the isolation levels SQL databases use to control it. For anyone who already knows what a database table is and wants to understand what happens under concurrent load.

Om Nobelpriset i fysik 2026, som belönade upptäckten av neutriner från rymden med observatoriet IceCube. Passar dig som vill hänga med i veckans stora vetenskapsnyhet.

Modern web uygulamalarını tehdit eden gerçek açıklar. Her teknoloji kimliğini nasıl ele verir, açık tam olarak neyi mümkün kılar ve nasıl kapatılır. Express, Next.js, Django ve Apache. Küçük bayraklar saklı.

Web güvenliğine yeni başlayanlar için kısa bir sözlük: CVE ve CVSS nedir, istek–yanıt nasıl çalışır, RCE ile kimlik doğrulama/yetkilendirme ne demek, ve sırada hangi lab ve odalar var. Yaklaşık on dakika.

An introduction to how compound interest works and why it grows savings and loans faster than simple interest. Good for anyone curious about the maths behind saving, borrowing or investing.

What Chance machines builds on: a chance worked out by counting, why all the chances add up to 100%, and when to multiply chances and when to add them. About ten minutes.

What Machine learning 2 builds on: the logic gates again, what makes a neuron fire, what a feature is, and why a perfect score on practice questions can mislead. About ten minutes.

How Karl Deisseroth, Peter Hegemann and Georg Nagel's discovery of light-gated ion channels became optogenetics, the tool neuroscientists use to switch individual neurons on and off with light. For anyone curious about the science behind October 2026's Nobel Prize in Physiology or Medicine.

Big-O notation is how programmers describe how an algorithm's speed changes as the amount of data grows. This room covers the common complexity classes and what they mean for real programs, for anyone just starting to learn algorithms.

An introduction to conditional probability and Bayes' theorem, showing how to update a belief when new evidence arrives. Written for anyone comfortable with basic percentages who wants to see why intuition about tests and probabilities is so often wrong.

The ideas the Web security 2 lab assumes: what a signed token is, how a database query is built from parts, why a server fetching a URL for you is different from you fetching it, and the theme under all of it — the server must not trust data just because it handled it. About ten minutes.

The ideas the Web security lab assumes: how a request and response work, what a URL’s parts are, what a cookie is, and the one that makes everything after it possible — the browser fills in the request, so the request is yours to change. About ten minutes.

Memory doesn't play back like a recording — it's rebuilt from fragments every time you recall it, and that rebuilding can bring in details that were never there. Six questions on why confident eyewitnesses can still be wrong, for anyone curious about how memory actually works.

Learn how to say hello, goodbye and thank you in Swedish, with simple pronunciation tips for English speakers. A short room for absolute beginners starting out with everyday Swedish phrases.

What actually happens between typing a web address and reaching a server: the chain of DNS servers involved, and how caching keeps it fast. For anyone curious about the plumbing behind every web visit.

Learn the everyday Turkish words for hello, goodbye, please, and thank you. Written for English speakers just starting out, with simple pronunciation guidance for the Turkish letters that look tricky.

What Machine learning 1 builds on: what a labelled example is, how a score decides spam or not, what "training" actually changes, and why you keep some examples back. About ten minutes.

År 2026 beskrev forskare den första kända sammanhängande spårföljden efter en vuxen Tyrannosaurus rex, hittad i North Dakota. Rummet passar dig som gillar dinosaurier och aktuell forskning, och testar vad spåren visar om hur T. rex rörde sig och vad spårfossil kan och inte kan berätta.

The handful of ideas Linear algebra 2 builds on: multiplying matching parts, what a right angle means for two arrows, Pythagoras, and why "similar" can mean "pointing the same way". About ten minutes.

How losing sleep changes the way the brain weighs risk, files away memories and catches its own mistakes. Written for anyone curious about the science behind a genuinely bad night's sleep.

Starts from nothing: directions on a map, arrows you can add and stretch, and rules that move every point at once — which is all a matrix is. About ten minutes.

A look at a September 2026 brain-computer interface that lets a paralyzed person speak and gesture through a single implant. Built for anyone curious about how far brain-reading technology has come.

How a scheduler picks which process gets the CPU, and what goes wrong when it picks badly. For anyone curious what actually happens between pressing a key and seeing it appear on screen.