Find the median, mean and range of the Smile test scores:
Without a calculator
[Drag the faces into order to help find the median.]
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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.