Gizmo of the Week: Movie Reviewer (Mean and Median)

December is one of the biggest months of the year for the movie industry, from Oscar-hunting prestige films to certain highly anticipated sci-fi sequels. Increasingly, the success or failure of a movie depends on its rating on critic aggregation websites, as consumers check the average scores before spending their dollars.

Students can aggregate their own movie ratings with the Movie Reviewer Gizmo. The Gizmo introduces mean, median, and mode through critic ratings. Students assign a rating from 0 to 10 to each critic, and then find the different measures of average by ordering, stacking, or balancing the values. Which movies will be fresh, and which will be deemed rotten?

Read more about the effect of aggregate ratings on the movie industry.

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