Discrete Shoes
Feet come in continuous sizes; shoes come in discrete ones. A customer asks for size 10.613; the store only serves discrete mathematicians.
Transcript
[Graph: possible foot sizes (continuous, in cm) vs. possible shoe sizes (discrete: 8, 8½, 9, … 11)] Customer: "I'd like a size 10.613 shoe, please!" Clerk: "Sorry, we only carry shoes for discrete mathematicians."
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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-discrete-shoes/ (CC BY-NC 4.0)