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Lesson Plan

Compare functions by analyzing the relationships between quantities represented using different forms

teaches Common Core State Standards CCSS.Math.Content.8.F.A.2
teaches Common Core State Standards CCSS.Math.Practice.MP1
teaches Common Core State Standards CCSS.Math.Practice.MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4

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Big Ideas: Functions illustrate real-life situations in multiple representations. Different representations can be compared using defining characteristics of functions, like rate of change and y-intercept. This task builds on students’ knowledge of functions and equations with constant rate of change in the form y = mx + b (8.EE.6). It extends students’ previous work comparing functions in the same representation. This task provides students with opportunities to analyze real-world situations and compare rate of change from various representations. It builds a foundation for later work with solving systems of equations (8.EE.7) and comparing linear functions with nonlinear functions. Vocabulary: function, rate of change, increasing, decreasing
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