Thinking with Mathematical Models: Linear and Inverse Variation (Connected Mathematics 2)

This first unit in eighth grade has been designed to review and extend student understanding and skill in work with linear functions and to introduce concepts associated with non-linear functions.
When algebraic expressions are used to represent patterns in data, the resultingfunctions are called mathematical models of the relationships. The functions can then be used to write and solve equations that provide estimates of answers to questions about the relationships. One of the central goals of this unit is to develop student understanding and skill in this aspect of the modeling process.

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