Range – Simplifying Statistics

The range of a set of data is the difference between the highest number in the set and the lowest number in the set.  When giving a set of numbers, you first need to put them in order.  For example, this set {4, 8, 2, 9, 22} should be reorganized to be in order from highest to lowest {2, 4, 8, 9, 22}.  Then to calculate the range you would take 22-2=20.  So your range is 20.  In real life calculating range can be used a in a wide variety of applications including finding the range of prices, distances, or scores.

Activities to Calculate Range

A fun activity to calculate range is called Penny Data.  Using the worksheet created by Classroom Magic, you can tally for 5 separate attempts how many pennies that your child can stack on top of each other.  You can then use this data to figure out the mean, median, mode, and range of the number of pennies that they were able to stack each time.  I really like this activity because it allows your child to create their set of data and perform and experiment to then calculate the statistics.

What other statistic activities to you use at home to teach your children about mean, median, mode, and range?  We hope that these activities have provided you a springboard to practicing and mastering statistical math problem solving at home.

Check Smart Tutor Elementary Math Curriculum and Free Math Games

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