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All goals have been accomplished!

  • I think this would be a good idea for a project in the Precalculus class.  Use the internet to find applications of the sine or cosine function.  Find data on the Internet that can be modeled by using a sine or cosine curve.  Graph the data and the sine or cosine function that approximates it on the same axes.


  • I have the students Match My Graph on the TI Navigator.  They have to use their knowledge of a function and its graph to write an equation that matches the one on the screen.  This can be done at all three levels I teach--Algebra 1, Algebra 2, and Precalculus.  When they write an incorrect equation, we can discuss what caused a result that was not planned.
  • In Precalculus, students explore various polar graphs on their calculators, comparing to find similarities and differences.
  •  I use the navigator quick poll to gather immediate feedback on the students' understanding of new material and later to check for mastery.  Learnchecks delivered on the navigator provide a quiz type answers to skill mastery.  We use the navigator to have the students "Match My Graph" to determine if they can produce the equation for a given graph that we've been studying.