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Published byLillie Kerwood Modified over 3 years ago

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Ricky Pedersen Cooking up maths ideas since 2005

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Linking the unit circle with Trigonometric functions 3 types of functions looked at in year 11 Sine Cosine Tangent How many of us show students that sin cos and tan are more than just buttons on a calculator?

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So….. Where does the pasta come in?!?!

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Materials required Couple of packets of budget spaghetti A3 or A4 Paper Glue or Sellotape A little time to prepare A small class of students (yeah right!)

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Sine – uses the y components (opposite) Cosine – uses the x components (adjacent) θ Hypotenuse (radius)

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Going off on a tangent…. Extend your students by looking at the tangent function Don’t use the pasta as an asymptote ;)

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Section 13.6a The Unit Circle.

Section 13.6a The Unit Circle.

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