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4.0

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PDF (Acrobat) Document File

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372 KB|9 pages

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- This bundle included four products from my store:- Graphs of Sine, Cosine, and Tangent from a Unit Circle- Building a Unit Circle- Unit Circle and Graph of Six Trigonometric Functions- Folding a Unit Circle$13.50$12.15Save $1.35

Product Description

This non-calculator activity will engage the students in creating the graphs for y = sin r,

y = cos r and y = tan r from the unit circle for values of 0 ≤ r ≤ 2π.

• To graph the function y = sin r students are given a unit circle (divided into sixteen parts to match with π/6, π/3, π/4, π/2, etc) adjacent to an rx plane. Using the value of r and the x coordinate for each point on the unit circle, students create a graph of thirteen points on y = sin r. They are then asked to draw a smooth curve through the thirteen points.

• To graph the function y = cos r students are given a unit circle (divided into sixteen parts to match with π/6, π/3, π/4, π/2, etc) adjacent to an rx plane. Using the value of r and the y coordinate for each point on the unit circle, students create a graph of thirteen points on y = cos r. They are then asked to draw a smooth curve through the thirteen points.

• To graph the function y = tan r students are given a unit circle (divided into sixteen parts to match with π/6, π/3, π/4, π/2, etc) adjacent to an rx plane. Using the value of r and the quotient of the y coordinate and the x coordinate for each point on the unit circle, students create a graph of thirteen points on y = tan r. They are then asked to draw a smooth curve through the thirteen points. Students observe that this graph is not a continuous graph. There is asymptotic behavior at π/2 and 3π/2.

Comments from buyers:

Great discovery activity!

This is a great resource!

Total Pages

9 pages

Answer Key

Included

Teaching Duration

N/A

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