If it ain't broke, don't fix it? Young mathematicians learn about the advantages of replacing pi with tau, such as a more conceptual understanding of radian measure. The video in the Numberphile Pi series also explains why such a move might be difficult to achieve.

Concepts

pi, circles, tau

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Additional Tags

math

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Instructional Ideas

• Team up with a physics teacher for the lesson

Classroom Considerations

• Note that some of the information repeats that of the "Tau vs. Pi Smackdown" video in the same series
• Video highlights some complex physics equations

• This video is hosted on YouTube

Pros

• Explanations are easy to understand and clear

Cons

• Writing on wrinkly brown paper makes the video have an unprofessional feel