Assume You're a Billionaire Werewolf
A teacher assumes students already understand the unit circle; a student retaliates by assuming the teacher is a billionaire werewolf with a guilty secret.
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2017-11-22-assume-you-re-a-billionaire-werewolf/ (CC BY-NC 4.0)Transcript
Teacher: "I'm going to assume you already understand the unit circle definitions of sine and cosine…" Student: "And I'm going to assume you're a billionaire werewolf with a guilty secret." Teacher: "But… that's not remotely true…" Student: "Whoa whoa whoa! Who said anything about 'true'?"