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Mathematics (2019) Grade(s): 09-12 - Algebra II with Statistics


Choose trigonometric functions (sine and cosine) to model periodic phenomena with specified amplitude, frequency, and midline.

Unpacked Content


Students know:
  • Key features of trigonometric functions (e.g., amplitude, frequency, and midline).
  • Techniques for selecting functions to model periodic phenomena.


Students are able to:
  • Determine the amplitude, frequency, and midline of a trigonometric function.
  • Develop a trigonometric function to model periodic phenomena.


Students understand that:
  • Trigonometric functions are periodic and may be used to model certain periodic contextual phenomena.
  • Amplitude, frequency, and midline are useful in determining the fit of the function used to model the phenomena.


  • Trigonometric functions
  • Periodic phenomena
  • Amplitude
  • Frequency
  • Midline