Idea 1of 22
Outcomes and events
What can happen when you spin a spinner?
Today you'll discover
- what an outcome is
- what an event is
- how one event can hold several outcomes
Think firstA spinner with four equal sections
How many different results can one spin of this spinner give?
Decide first, then press Next. Name every place the pointer could stop.
A round spinner of four equal sections marked O for orange, B for blue, G for green and Y for yellow, with a pointer. The outcomes are listed across the top; then the orange and green sections are outlined and named as the event, 2 of the 4 outcomes. The last step shows a spinner numbered 1 to 6.
See the whole ideathe big idea and the key word, in one place
The big idea
An outcome is one possible result; an event is the outcomes you care about.
Other outcomesA coin has 2 outcomes: heads or tails. A number cube has 6: 1, 2, 3, 4, 5 or 6.
Easy to get wrongList every outcome before you count. “Not orange” is not one outcome; it hides blue, green and yellow.
Key words
- outcome
- one possible result, like the colour a spinner stops on
- event
- the result you care about; it can be made of one outcome or several
Ready to use it?
- List the outcomes of a spinner, coin or number cube.
- Say which outcomes make an event happen.