This is a chance review game. Students spin a clickable spinner, land on a question about spinners, bags or dice, and check the worked answer. Then the job turns around: they design spinners and bags to match given probabilities, and sample a mystery bag to work out what's inside.

How it runs

Two to three lessons of 45–60 minutes. Students make paper spinners and cut out the 8 question cards. Play in groups with the recording sheet, or as a class: in Present mode, click a number to jump to its question and "Back to the spinner" to return (works in PowerPoint, Keynote and Google Slides).

Students test Spinner B, graph their results at 2 spins per line and compare them with what they expected. They design spinners and bags for given probabilities, such as a bag where red is twice as likely as blue. For the mystery bag they take a cube, record it, put it back and repeat. The Case of the Missing Game Pieces, a chore spinner money task and a design-your-own spinner game finish it.

Maths covered

• MA3-CHAN-01: assign probabilities to spinner, bag and die outcomes (equally and not equally likely) using fractions, decimals and percentages, design random generators, compare expected and observed results and sample with replacement
• MA3-DATA-01: graph Spinner B results in a column graph with a many-to-one scale (1 line = 2 spins)
• Extension (Stage 4): a clickable two-dice round with a 6 × 6 outcome table and the term "sample space" is clearly labelled (MA4-PRO-C-01)

Good to know

• You need an opaque bag, 10 coloured cubes, pencils and paperclips.
• All new questions and spinners in this refresh of my 2021 Probability Interactive Spinner Game.
• Maths Detectives characters and Keynote fonts included.