Lesson plan

Recognize the importance of random selection by comparing sample distributions

teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Content.HSS-IC.A.1 http://corestandards.org/Math/Content/HSS/IC/A/1

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Big Ideas: People cannot randomly choose numbers. Random samples are more representative of a population than samples chosen by people. This lesson builds on students prior work with comparing distributions and uses these skills to address the common misconception that people can make random selections "in their heads." Chance process, or random selection, is introduced by having students select numbers from a hat and sets the stage for the use of technology. Data from the top 100 grossing movies in 2012 is used to compare the distributions of a student selected sample and a sample chosen by chance process with the distribution of the population. Vocabulary: distribution, sample, representative sample, chance process, random selection, variability, graphical representation Special Materials: One set of squares of uniform size or white poker chips numbered 1 - 100 in a non-transparent container per group of students. List of the top 100 grossing movies in 2012 Ranked list of the top 100 grossing movies in 2012
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