Years 3–6 · Week 11 of 12
What Quantum Technology Can and Cannot Do
Learning goals
By the end, you can…
- Name quantum computing, sensing, communication and simulation as research areas.
- Match a task to ordinary computing, quantum research, both or not enough information.
- Explain that quantum computers are not faster for every task.
- Identify a claim that needs evidence before it is accepted.
What you already know
Connect to a familiar idea
Quantum effects can be controlled in laboratories and devices. Turning those effects into a useful technology depends on the task, hardware and evidence.
- Know the basic roles of qubits, circuits and measurement.
- Understand that real quantum hardware has noise.
Opening story
Start with something familiar
A headline says, 'Quantum computer will solve every problem instantly.' A careful reader asks: Which problem? Which machine? What evidence? Good science uses precise claims.
Plain-English explanation
Build the idea carefully
Four areas of quantum technology
Quantum technologies include computing, sensing, communication and simulation of quantum systems. Quantum devices may help with selected tasks, while ordinary computers remain excellent for most everyday work.
Use evidence, not hype
Quantum computers are not faster for every problem and are not expected to replace all classical computers. Many proposed large applications remain research challenges, so claims should state evidence, limits and uncertainty.
Try the model
Choose the best evidence category
Place each task or claim under ordinary computer, quantum research, both, or not enough information. Open the evidence note after each choice.
Ready. Adjust a control, then run the model.
What this model shows: Categories describe current evidence at a broad level. Research and engineering can change over time.
Text alternative for this interactive
Sort the printed claim cards into four labelled columns and read the evidence notes.
Expected observation: Everyday tasks usually suit ordinary computers, some specialist tasks are active quantum research, and vague miracle claims belong under not enough information.
Guided activity
Check a quantum headline
- Underline the exact promise in a claim.
- Ask what task, evidence and limitation are named.
- Rewrite the claim so it says what is known and what remains uncertain.
Evidence to collect: The rewritten claim names a specific task and distinguishes demonstrated evidence from a possible future use.
Glossary
Words to know
- quantum sensing
- Using quantum effects to measure selected physical quantities.
- quantum communication
- Using quantum systems in communication tasks and protocols.
- quantum simulation
- Using a controlled system to study another quantum system.
- evidence
- Recorded observations or results used to test a claim.
Short recap
Keep these ideas
- Quantum technology includes several different research areas.
- A useful quantum advantage depends on a specific task and strong evidence.
- Quantum computers are specialist tools, not replacements for every ordinary computer.
Knowledge check
4 clear questions
Choose an answer for immediate feedback. You may retry, and your best submitted score is kept.
Explore More Optional extension for Years 5–6
A fair technology claim identifies the comparison method, input size, hardware conditions and uncertainty. 'Quantum advantage' should always say advantage for what.
Try this
Choose one official source and make a two-column note: demonstrated now and research goal. Do not move an item between columns without evidence.
Adult support Teacher and parent notes
Discuss
- Treat the lesson as current scientific literacy, not a prediction contest.
- Ask for a specific task whenever a learner says 'faster'.
- Avoid promising medical, climate or security outcomes that the evidence does not establish.
Answer guidance
Look for task-specific, cautious language and correct use of the four categories rather than enthusiasm alone.
Offline activity
Use a card sort with source excerpts paraphrased in age-appropriate language. Include a visible 'not enough information' column.
Safety
Use reputable sources and protect learner privacy during web research. No physical quantum equipment is needed.
Sources and further reading
Checked references for this lesson
These sources support the lesson’s main scientific claims. Links open on the source organisation’s site.
- Quantum information science National Institute of Standards and Technology · government explainer · checked 2026-08-02
- Basics of Quantum Information IBM Quantum Learning · official course · checked 2026-08-02
- Quantum Computation and Quantum Information Cambridge University Press · textbook publisher page · checked 2026-08-02
Content review: Reviewed on 2026-08-02.