You Make the Call
Algebraic Thinking Focus
The opportunity to examine and understand linear functions is a key component to success in the formal study of algebra. Moreover, students need to be able to describe relationships with a variety of representations and connect these representations-precisely as demonstrated by this lesson. These experiences foster the development of algebraic thinking in a curriculum, which is based on problem solving.
Lesson Objective
Students will find the function rule for each of two sets of data and compare the results to solve a problem.
Overview of the Lesson
Students are given two plans for cell phones. The first plan is given in the form of a table and the second in a graph. Students will determine the better plan for Scott, a middle school student, and explain their reasoning.
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