Music Sales, by Format, 1980 – 2022
graph by Scholastic Math, slow reveal by Jenna Laib
(Slide deck includes notes and questions to elicit discourse)
Type of Graph: stacked bar graph
Visualization Source: Scholastic Math
Data Source: Recording Industry Industry Association of America (RIAA)
Perry, Mark J (2022). “Animated Chart of the Day: Recorded Music Sales by Format Share, 1973 to 2022.” American Enterprise Institute (AEI): September 23, 2022.
Potential Math Content: stacked bar graph, comparing values, large numbers, developing theories about why, noticing trends, estimating values
Potential Content Connections: music, capitalism, recording industry
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