Step 6 Objective
Know that if the probability of an event occurring is p, then the probability of it not occurring is 1 – p.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
What if pupils find this a barrier?
,
Use events where it is possible to show all outcomes, e.g. dice or digit cards.
Lay out digit cards numbered 0–9 so that the numbers can be seen. Ask pupils how many cards show numbers worth less than 3. How many show numbers worth 3 or more? Convert these numbers into probabilities, e.g. What is the probability of showing a number with value less than 3? What is the probability of choosing a card that shows a number with value 3 or more?