Examples of what pupils should know and be able to do
Pupils should be able to form opinions when the event has two equally likely outcomes, e.g. throwing a coin or dropping a picture and looking at which way up it lands.
Move on to events with more than two possible outcomes, e.g. rolling a dice.
- Counters - Rtf (rich text format) document (144Kb)
- Beads - Rtf (rich text format) document (224Kb)
- FTM(P)Y456 p. 113 - Acrobat pdf document (148Kb)
- FTM(S)Y789 p. 276 - Acrobat pdf document (16Kb)
Probing questions
Which is more likely a head or a tail?
Am I more likely to roll a 2 than a 6? Can I expect to roll more even numbers or more odd numbers?
Which number do you think will occur most frequently?
What if pupils find this a barrier?
Have enough coins, pictures or dice to show all possibilities, e.g. use six dice and put them out so that each of 1 to 6 is shown on top. Explain that if we were to roll one dice sixty times we would expect to get ten of each number. Now which is more likely, 2 or 6? How many 2s would there be? How many 6s, etc.?
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