Chance and probability can sound familiar to students, but the words are easy to use loosely. Students need to connect language such as impossible, unlikely, likely and certain to the outcomes that can actually happen.
The Daily Maths Review chance and probability app keeps that connection visible. Students answer chance words, possible outcomes, likely outcomes, expected frequencies and simulation questions using spinners, counter bags and trial results.
Start with the language
Chance words are useful when students can justify them. Ask students to explain why an event is impossible, unlikely, likely or certain before they choose the answer.
- Use chance words when students are learning the core probability language.
- Use possible outcomes when students need to list what could happen on a spinner.
- Use bags when students are comparing likelihood from visible counts.
- Use experiments when students are ready to connect chance with repeated trials.
Make students check the model
A counter bag question should send students back to the count of each colour. A spinner question should send them back to the sections. A simulation question should send them back to the results, not just a guess.
Run three chance-word questions, pause for students to justify the word, then switch to counter bags and ask which count makes an outcome more likely.
Use errors to choose the next example
If students miss chance words, return to everyday examples. If they miss possible outcomes, list the spinner colours aloud. If they miss expected frequencies or simulations, connect the result back to the number of trials.