Find the median, mean and range of the Smile test scores:
63%
98%
57%
32%
34%
43%
92%
51%
20%
82%
Without a calculator
[Drag the faces into order to help find the median.]
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Topics: Starter  Averages  Data Handling  Statistics
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Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.
Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to a self marking quiz about averages.
And here is a strategy game based on calculating the mean, median and range of three numbers.