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January 2021

 

Jorgen Berglund
      California State University – Chico

Graphing calculators and data collection devices as vehicle for mathematical thinking




Appropriately used, technology provides us with the means to both challenge our students and deepen their mathematical understanding. Consider, for instance, the topic of functions. When studying functions (R → R), students are presented with multiple representations of functions, but their understanding of these representations, and the connections between them, is often limited.

A student may know how to graph a function, finding its local maximums, local minimums, and inflection points, but often they have limited ability to interpret the graph. Or a student may be able to generate a table and graph the points from a table, but they will have little understanding for how tables can be used to illustrate differences in the functions or be used solve equations.

We will consider examples of the use of handheld technology that allow students to make connections and develop understanding of various representations of functions.

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