Technology · Engineering and power
Quantum Computing
Quantum Computing
A detailed and thorough understanding of quantum computing
5 depths≈ 213 min of reading59 practice questions
The ladder
Choose how deep to go
Every depth is open. Start where it feels interesting — you can always move back.
- Discoverabout 43 minThe Spinning Coin MachineThis lesson introduces quantum computing by comparing classical computer bits to spinning coins, showing how qubits can exist in blended states until measurement forces a definite answer. Learners discover superposition, measurement, and why this new kind of computing matters.
- Understandabout 36 minThe Impossible Coin: How Quantum Computers ThinkThis lesson explains what makes a quantum computer different from the phone or laptop you use every day, using coins, cricket, and light to make sense of qubits, superposition, entanglement, and measurement. You will learn why quantum computers can solve certain problems faster,
- Investigateabout 55 minQubits and Quantum TricksThis lesson builds quantum computing from the behavior of spinning coins and polarized sunglasses, then lets learners change gates, noise, and qubit counts on paper simulators to predict and test outcomes.
- Go deeperabout 38 minThe Qubit and the Quantum LeapThis lesson explores how qubits use superposition and entanglement to process information differently from classical bits, introduces quantum gates and measurement probabilities, and examines which problems quantum computers may solve faster and why building them remains difficul
- Extendabout 41 minThe Quantum Advantage: When Small Particles Solve Big ProblemsThis lesson explores how quantum computers use qubits that exist in superposition and entanglement to solve certain problems faster than classical computers. Students compare classical and quantum approaches, trace a simple quantum circuit, examine real hardware limits, and desig
Practise and apply
Question bank · 59 questions
2 sections from Foundation to Challenge, each with hints and a worked solution — or play a 10-question round for points and stars.
Foundation 15Core 20Stretch 14Challenge 10
Words to know
43 words are explained in these lessons
BitQubitSuperpositionMeasurementCollapseBloch sphereProbability amplitudeInterferenceDecoherenceQuantum advantageEntanglementSuperconducting qubit+31 more