Fun Math Kids

Young Geniuses · Ages 13 to 14

All Young Geniuses games

Sampling Distribution Spinner

Spin to build a sample and watch the distribution settle in a national data science institute, for ages 13 to 14.

SpinnerExplore sampling distributions and variability~8 min per level3 levelsAll devices
  • Free · no account required
  • COPPA compliant
  • +10 XP per level
  • 3 levels
  • Plays on all devices
  • Curriculum-aligned

The learning journey

Every activity is one step. Here is where this one fits.

  1. Play(you are here)Learn the idea in a game
  2. PractiseLock it in on paper
  3. ReviewCome back and keep it sharp
  4. MasterTake on a harder challenge
  5. AchieveEarn a certificate

About Sampling Distribution Spinner

Sampling Distribution Spinner sets students in a national data science institute, where they run real sampling experiments on a weighted wheel. Spinning to grow a sample and watching the proportion settle toward the theoretical value builds an intuition for sampling variability and the law of large numbers — foundational ideas for GCSE Higher statistics and beyond. It is built for ages 13 to 14 (grade 8 and grade 9, GCSE Higher) with clear instructions, large touch targets, and progressive difficulty, so students can work independently or alongside a parent. Correct answers bring encouraging feedback and a small celebration, while mistakes are never punished and simply invite another try, which keeps confidence high. The challenge grows step by step so it always matches the learner, supporting steady progress across the upper-secondary and GCSE Higher curriculum used in the US, UK, Canada, and Australia. The game runs in any modern browser with no app to install, no sign-up, and no advertising shown to children. Progress is saved only on the device and appears in the Parent Dashboard, so families can follow growth without any data leaving the browser. It pairs well with our Young Geniuses worksheets for offline practice of the same skills.

Chosen by the skills this activity practises.

Next — more of the same skill

A hand for grown-ups

Before you start
Find a calm few minutes with no rush. Let your child know it is fine to find some of it tricky — that is what practice is for.
While they work
Sit nearby but let them lead. If they get stuck, ask "what could you try?" rather than giving the answer — the thinking is the point.
Afterwards
Ask them to show you one they found easy and one they found hard. Praise the effort on the hard one, not just the right answers.
Watch out for
Rushing. If answers come too fast and wrong, slow the pace down together rather than pushing for more.
Away from the screen
Look for the same maths in everyday life — counting stairs, sharing snacks, spotting shapes on a walk.

How to play

  1. A question appears on screen

    A maths question is shown in large text at the centre of the play area. A timer bar begins counting down from 120 seconds.

  2. Choose the correct answer

    Answer options are shown as large buttons. Tap or click the correct option. Any input method works — touch, mouse or keyboard.

  3. Build your streak

    Each consecutive correct answer increases your streak. A longer streak lights up the flame icon and adds a bonus multiplier to the XP you earn for the level.

  4. Finish the level

    Each level has 4 questions. Complete them to earn the full level reward (+10 XP, plus up to +10 XP for a perfect run). Progress is saved locally and shown on the Parent Dashboard.

🎓 Curriculum

Curriculum alignment

Mapped to national curriculum frameworks so teachers and parents can match practice to school standards.

  • United StatesCommon Core State Standards for Mathematics · probability, statistics, samplingAligned to probability, statistics, sampling number and operations objectives.
  • United KingdomNational Curriculum for England — Maths · probability, statistics, samplingAligned to probability, statistics, sampling number and operations objectives.
  • AustraliaAustralian Curriculum v9.0 — Mathematics · probability, statistics, samplingAligned to probability, statistics, sampling number and operations objectives.
  • CanadaPan-Canadian Provincial Standards · probability, statistics, samplingAligned to probability, statistics, sampling number and operations objectives.
❓ FAQ

Frequently Asked Questions

  • It is designed for ages 13 to 14 (grade 8 and grade 9, GCSE Higher) and follows the upper-secondary curriculum.

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