Reflection: Lesson Planning Trigonometric Graphs (Day 2 of 3) - Section 2: Exploring Transformations


I like using Desmos application. It allows students to change the scale to be in terms of pi and if they have Internet access students can do the activity at home. 

In the past I have used TI-84's and the Transform App. The main issues students have with this application is that they must use y and x instead of t and f(t). Also the graphs will have all scales in decimal form so students must be aware that pi/2 is approx 1.57.

Since I teach calculus, I usually work in radians. You can work this activity in degrees you will just need to change some of the directions for changing the window.

For me it is important that the students explore the transformations in some manner not the tool that is used. If I only have my computer available, I would do this activity as a class having different students move the sliders and see what is happening to the graphs.

  Technology Adjustment
  Lesson Planning: Technology Adjustment
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Trigonometric Graphs (Day 2 of 3)

Unit 8: Graphing Trigonometric Functions
Lesson 2 of 13

Objective: SWBAT determine how parameters change the graphs of trigonometric functions.

Big Idea: Through the use of technology students discover how transformations of trigonometric functions are like the transformations of previously studied functions.

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