Lesson plan

Solve real-world problems in context by using a linear regression line

teaches Common Core State Standards CCSS.Math.Content.HSS-ID.B.6 http://corestandards.org/Math/Content/HSS/ID/B/6
teaches Common Core State Standards CCSS.Math.Content.HSS-ID.B.6a http://corestandards.org/Math/Content/HSS/ID/B/6/a
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5

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Big Ideas: Bivariate quantitative variables can be represented by a table, graph, and a prediction equation, and estimates can be made from each. This lesson builds on students work in the 8th grade. In the 8th grade students solved problems in the context of bivariate measurement data. This lesson focuses on two variables which have a linear association. Students will use different methods to estimate the solutions to problems This lesson is extended in Algebra 2 by focusing on quadratic, exponential, and trigonometric associations. Vocabulary: scatter plot, association, least squares regression equation, slope, intercept, interpolation, extrapolation Special Materials: Text Messaging Data