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How is the cosecant function like a tattoo? Pupils learn about the geometric representations on a unit circle of all six trigonometric functions through a video. They also learn why secant, cosecant, and cotangent ended up affixed in mathematics, like tattoos, even though they are not particularly useful.
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Instructional Ideas
- Use the video once a unit on the six trigonometric functions is complete
Classroom Considerations
- Note that the video includes a clip of someone actually getting a tattoo, which some parents may find objectionable
- Learners should have experience with trigonometric ratios and the unit circle, as well as with similar triangle
- This video is hosted on YouTube
Pros
- Graphics promote understanding
- Concise explanations
Cons
- None