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Lesson Plan
Graphing Sine and Cosine
Lynn Weiss

Goal:
Students will use technology to go steady how to represent trigonometric functions. They will work cooperatively to imitate sine and cosine functions after real world applications.

Prerequisites:
Students should sire a basic intimacy of the unit circle. They should know how to graph
y = sin(x) and y = cos(x). They should understand basic trigonometric definitions such as amplitude, period, and shift.

Materials:
Students should have a TI Graphing Calculator (TI-82, TI-83, or TI-84).

surgical operation:
In past years I have apply a Spaghetti Lab where scholarly persons work in groups to disc everyplace the graphs of y = sin(x) and y = cos(x). They use butcher paper and spaghetti along with their knowledge of right triangle trig and the unit circle to graph the functions. This lesson will begin on the school day avocation the completion of this lab.

solar day 1:
1. Review graphing y = sin(x) and y = cos(x). Be sure that students know the amplitude, period, domain and range of the functions. address how to graph the functions in both radian and degree mode.
2. leave the worksheet Graphing Calculator Exploration, Graphing Sine and Cosine. Have students work respectively to complete the worksheet.



They should discover how granted the equation y = a sin b(x-c)+ d, changes in a, b, c, and d effect the graph.
3. Go over the answers to the worksheet as a class. Have students volunteer to explain their solutions.

Day 2
1. Give a pop partner quiz to value students knowledge of graphing sine and cosine. The quiz will ask them to graph a function and to determine the equation of a given graph.
2. Distribute index cards to all students in the class. from each one classroom table will have a menage with an answer on it. The students will use their knowledge of the unit circle to find other members of their group. For instance a student with sin 30? and a student with cos 60? will each sit at the table...If you want to furbish up a full essay, order it on our website: Orderessay



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