Build a probability spinner: set how many sectors win, then spin. Match a target chance as a fraction, shape likelihoods (certain/even/unlikely), and watch experiments converge on the theory in a live bar chart.
Children design a spinner by choosing how many sectors lead to a win, express the resulting chance as a fraction, and classify outcomes as certain, even, or unlikely. Repeated spins feed a live bar chart that shows how experimental data gradually approaches the theoretical probability. Best for Grades 4–6, or anyone curious about why a fair coin lands heads roughly half the time.
A free, no-signup, no-ads math game for Grades 4–6 — practising probability, data, statistics. Play in your browser on the KidsDoMath games hub or explore more Data & Probability games.
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What math does Quantum Spinner practice? Quantum Spinner practices Probability, Data & Graphing, Statistics. Children design a spinner by choosing how many sectors lead to a win, express the resulting chance as a fraction, and classify outcomes as certain, even, or unlikely.
What grade is Quantum Spinner for? Quantum Spinner is built for Grades 4–6 (ages 9–12). It sits in the Data & Probability strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Quantum Spinner? Build a probability spinner: set how many sectors win, then spin. Match a target chance as a fraction, shape likelihoods (certain/even/unlikely), and watch experiments converge on the theory in a live bar chart.
Is Quantum Spinner free to play? Yes. Quantum Spinner is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.