Water vs. Diamonds
Water keeps us alive and costs almost nothing; a diamond is a shiny rock that costs $10,000. The classic water-diamond paradox of economics.
Transcript
[Life-Giving Liquid: $1/10,000 per unit] [Shiny Rock: $10,000]
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-09-18-water-vs-diamonds/ (CC BY-NC 4.0)