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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Counting Crowds
This two and half minute video, from Twig World, begins by asking how it was estimated that 1.8 million people attended the swearing in ceremony of Barack Obama as the 44th president of the United States. Statisticians use a variety of methods to help estimate large crowds, taking into account known values and using technology such as satellite images, the area could be split into regions, the area of each region approximated and each region given a density rating. From this information an approximation for the number of people in each region is calculated.
The video is accompanied by a lesson plan and a worksheet covering further estimation work.
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Counting crowds lesson plan 24.03 KB
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