A set of two posters which clearly show how to calculate the average of a group of numbers.
Use this resource when teaching students how to calculate the mean value of a set of data.
There are two posters in the download. One that uses the word ‘mean’ and the other uses the word ‘average’. Choose the terminology that works best for your students.
Common Core Curriculum alignment
Recognize that a measure of center for a numerical data set summarizes all of its values with a single number, while a measure of variation describes how its values vary with a single number.
Giving quantitative measures of center (median and/or mean) and variability (interquartile range and/or mean absolute deviation), as well as describing any overall pattern and any striking deviations from the overall pattern with reference to the con...
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