Mini Courses

Step-by-step multimedia lessons with guided practice wizards, interactive quizzes, and completion certificates. Preview the first three lessons free, then register and enroll to continue.

Browse by category

Age group

Difficulty

Showing all 35 courses

astrophysics & physics Intermediate

Absolute Time: Newton's Universal Clock

Explore Newton's concept of absolute time — a universal clock that flows equably for all observers. Learn Galilean transforms, absolute simultaneity, Newton's bucket argument, Mach's critique, and where the framework breaks down before Einstein.

40 min Adults Pass: 75%

Start course Enroll free

mathematics Beginner

Basic Maths: Numbers, Operations, and Why They Work

Build a solid foundation in numbers and arithmetic. Learn how place value, the four operations, order of operations, primes, fractions, decimals, and percentages connect into one coherent system.

25 min All ages Pass: 80%

Start course Enroll free

computer science Intermediate

Building Simple Web Games and Apps with HTML, CSS, and JavaScript

Put your HTML, CSS, and JavaScript skills together to build real browser games. Cover the game loop, canvas drawing, keyboard input, collision detection, scoring, sound, and culminate in a full Pong clone — all in the browser.

55 min Teens Pass: 70%

Start course Enroll free

computer science Beginner

Computer Science Foundations: Binary, Logic, and How Computers Think

Discover the mathematics and logic that power every computer. From binary counting and hexadecimal to logic gates, truth tables, memory addressing, the fetch-execute cycle, and an introduction to JavaScript programming — this course builds the conceptual bedrock of computer science.

60 min Teens Pass: 70%

Start course Enroll free

astrophysics & physics Intermediate

Cosmological Time: The Origin, Age, and Fate of Time Itself

Did time have a beginning? Trace cosmic history from the Planck era through the Big Bang, inflation, and the cosmic microwave background to the far future. Examine whether 'before the Big Bang' is a meaningful question and what heat death means for time.

40 min Adults Pass: 75%

Start course Enroll free

critical thinking Beginner

Critical Thinking Sandbox: Filter Claims A-to-Z

Master a five-gate analytical framework for evaluating any claim with confidence. Work through each gate in a guided wizard practice, then prove your understanding with a quiz.

30 min Adults Pass: 80%

Start course Enroll free

astrophysics & physics Intermediate

Emergent and Quantum Time: Does Time Exist at the Deepest Level?

Quantum mechanics and general relativity treat time in incompatible ways. Explore the Wheeler-DeWitt equation, the frozen formalism problem, the Page-Wootters mechanism, loop quantum gravity, and whether time emerges from a timeless quantum substrate.

40 min Adults Pass: 75%

Start course Enroll free

critical thinking Intermediate

Epistemology and Science: Why They Are Not the Same Thing

Science plays the game. Epistemology decides what the rules of the game should be. This course traces the shared ancient roots of science and philosophy, explains how they separated during the Scientific Revolution, and shows why confusing the two causes serious intellectual errors.

35 min Adults Pass: 70%

Start course Enroll free

critical thinking Intermediate

Essentials of Critical Thinking: Useful Questions and Bad Premises

Learn how to separate useful, falsifiable questions from untestable premises, insufficient evidence, and subjective-experience traps using real historical examples and guided practice.

40 min Adults Pass: 80%

Start course Enroll free

critical thinking Beginner

Fair and Unfair Arguments: Spotting Sneaky Tricks for Kids

Some arguments are fair and honest. Others use sneaky tricks to sound convincing when they really are not. This course teaches children to tell the difference, with four of the most common tricks explained using everyday examples — and the skills to spot them anywhere.

20 min Children Pass: 70%

Start course Enroll free

astrophysics & physics Beginner

Forces and Motion: Newton's Laws in the Real World

Understand the three laws that govern how objects move and respond to forces. From inertia and free-body diagrams to momentum and energy, this course connects the mathematics of motion to everyday physical experience.

25 min Teens Pass: 80%

Start course Enroll free

mathematics Beginner

From Arithmetic to Algebra: Variables, Equations, and Patterns

Take the step from arithmetic into algebra. Learn how variables, expressions, and equations turn word problems into solvable mathematics, and how straight-line graphs reveal patterns in data.

30 min Teens Pass: 80%

Start course Enroll free

mathematics Beginner

GCSE Mathematics Foundations Review

A structured review of the core topics covered in GCSE Mathematics: number, algebra, ratio, geometry, statistics, probability, and graphs. Ideal preparation for exams or refreshing mathematical foundations.

35 min Teens Pass: 80%

Start course Enroll free

computer science Beginner

Introduction to Bootstrap 5: Rapid Responsive Web Design

Learn to build beautiful, responsive websites faster with Bootstrap 5. Master the grid system, utility classes, components, and JavaScript behaviour — using only HTML attributes.

40 min Teens Pass: 70%

Start course Enroll free

computer science Beginner

Introduction to CSS3: Styling and Laying Out Web Pages

Master CSS3 from selectors and the cascade through the box model, flexbox, grid, transitions, animations, and custom properties — with four interactive tools to practice every concept.

50 min Teens Pass: 70%

Start course Enroll free

critical thinking Intermediate

Introduction to Formal Logic

From Aristotle's syllogisms to Gödel's incompleteness theorems, this course builds the full toolkit of formal logic from the ground up. Learn what formal logic is, why it was developed, the complete symbol set, how to translate natural language into logical notation, and the famous results that changed mathematics and philosophy forever. Includes ten worked examples converting English sentences into formal logic expressions.

70 min Adults Pass: 75%

Start course Enroll free

computer science Beginner

Introduction to HTML5: Building the Structure of the Web

Learn to write valid HTML5 from scratch. Cover document structure, semantic elements, forms, tables, multimedia, accessibility, and best practices — with a live sandbox to practice in.

35 min Teens Pass: 70%

Start course Enroll free

computer science Beginner

Introduction to JavaScript: Programming the Web

Learn JavaScript from variables and functions to arrays, objects, the DOM, and asynchronous programming — with a live sandbox to run and experiment with code throughout.

45 min Teens Pass: 70%

Start course Enroll free

critical thinking Beginner

Is That True? How to Check a Claim

Carrots help you see in the dark. We only use 10% of our brains. Lightning never strikes the same place twice. Some of these are true. Some are false. All of them are claims. This course teaches children how to tell claims apart from facts, where to look for evidence, and how to ask the most powerful question of all: how do we know?

20 min Children Pass: 70%

Start course Enroll free

science Beginner

Light, Waves, and the Electromagnetic Spectrum

Discover how all electromagnetic radiation — from radio waves to gamma rays — shares a common nature while differing enormously in wavelength, frequency, and energy. Learn how different parts of the spectrum are used in technology, medicine, and astronomy.

25 min Teens Pass: 80%

Start course Enroll free

mathematics Beginner

Mathematics Through the Ages: A History of Mathematical Discovery

Trace the history of mathematics from prehistoric tally marks to 20th-century logic and computing. Understand how different cultures built on each other's discoveries to create the mathematical tools we rely on today.

25 min Adults Pass: 80%

Start course Enroll free

astrophysics & physics Intermediate

Orbital Mechanics: How Mathematics Predicts the Movement of Planets

Discover how Kepler's three laws, Newton's law of gravitation, and mathematical reasoning allow us to predict the positions of planets, plan space missions, and even discover new worlds before ever observing them.

35 min Adults Pass: 80%

Start course Enroll free

critical thinking Intermediate

Reading the Story Behind the Story: Media and Evidence Literacy

Learn how to analyse media evidence, detect political framing, avoid conspiracy rabbit holes, and stay grounded in what is known rather than what is merely unknown.

35 min Adults Pass: 80%

Start course Enroll free

astrophysics & physics Intermediate

Relativistic Time: Einstein's Revolution and the Flexible Clock

From the Michelson-Morley experiment to GPS corrections, discover how special and general relativity show that time is not absolute. Cover time dilation, the twin paradox, frame-dependent simultaneity, gravitational time dilation, and the mathematics behind them.

40 min Adults Pass: 75%

Start course Enroll free

science Intermediate

Seeing the Curve: Evidence, Geometry, and Earth's Shape

Is the Earth actually a globe? This course builds the case from scratch using observational evidence, human eye physiology, and the real geometry of horizon curvature. You will learn why you cannot see the curve from the ground, what altitude you need and why, how atmospheric refraction affects the apparent horizon, and how to work through the maths yourself. Finish with an interactive simulation and a quiz.

35 min Teens Pass: 75%

Start course Enroll free

critical thinking Beginner

Spotting the Assumption in the Story

A dragon, a missing sandwich, and a ghost in a school — these stories all hide a secret. In this course, young readers discover what assumptions are, why we need to check them, and how to spot them using a simple three-step method.

20 min Children Pass: 70%

Start course Enroll free

astrophysics & physics Intermediate

The Arrow of Time: Entropy and Why the Past Is Different from the Future

Why does time have a direction when the fundamental laws of physics are time-symmetric? Learn Boltzmann entropy, the second law of thermodynamics, Loschmidt's paradox, the past hypothesis, Maxwell's demon, and how entropy explains irreversibility.

40 min Adults Pass: 75%

Start course Enroll free

critical thinking Beginner

The Evidence Detective: Finding Clues to Support Ideas

Every great detective follows clues. So does every great thinker. This course teaches children what evidence is, how to tell weak clues from strong ones, why one clue is never enough, and what to do when a clue does not fit. Become your own evidence detective.

20 min Children Pass: 70%

Start course Enroll free

critical thinking Intermediate

The Fallacy Field Guide: Recognising Broken Arguments

Learn to spot common logical fallacies, muddy reasoning, rhetorical tricks, and bias patterns used to make weak arguments sound persuasive.

40 min Adults Pass: 80%

Start course Enroll free

astrophysics & physics Intermediate

The Lambda-CDM Model: The Standard Cosmology of the Big Bang

Understand the Lambda-CDM model — the current scientific consensus for the origin, composition, and evolution of the universe. Cover the Friedmann equation, dark matter and dark energy, the CMB, Big Bang nucleosynthesis, inflation, structure formation, and the genuine open problems including the Hubble tension and the cosmological constant problem.

55 min Adults Pass: 75%

Start course Enroll free

science Intermediate

The Scientific Method: Observe, Test, Defeat Your Own Hypothesis

Learn the scientific method as a practical process: make observations, construct testable hypotheses, design experiments, and actively try to falsify your own hypothesis with neutral discipline.

40 min Adults Pass: 80%

Start course Enroll free

astrophysics & physics Beginner

The Solar System: Our Star, Our Planets, and Their Moons

Explore the structure and contents of our solar system, from the nuclear furnace at its centre to the icy boundary of the heliosphere. Learn how the planets formed, what distinguishes each category, and how astronomers measure the vast distances involved.

30 min All ages Pass: 80%

Start course Enroll free

astrophysics & physics Beginner

The Universe at Scale: From Atoms to Galaxy Clusters

Explore the extraordinary range of sizes in the universe, from sub-atomic particles to superclusters of galaxies. Learn how powers of ten allow us to compare and reason across scales that intuition cannot reach.

25 min All ages Pass: 80%

Start course Enroll free

critical thinking Beginner

What Is Critical Thinking? A Beginner's Guide for Kids

What does it really mean to think carefully? This beginner course introduces children to the idea of critical thinking — what it is, why it matters, the three most common thinking traps to avoid, and three simple tools to use instead.

20 min Children Pass: 70%

Start course Enroll free

critical thinking Intermediate

Why I Can't Disprove God with Science

Two bold claims open this course — there is no god, and there is a god. Using formal logic, the history of philosophy, and real empirical studies, this course explains why neither claim sits neatly inside scientific method. Topics include the argument from ignorance fallacy, god of the gaps, classical and modern arguments for divine existence, the only large rigorous prayer trial, agnosticism, the motte-and-bailey pattern, confirmation bias, and how to assign burden of proof correctly — ending with a quiz on classifying real statements.

55 min Adults Pass: 80%

Start course Enroll free