Lesson plan

Interpret the slope and intercept of a regression line

teaches Common Core State Standards CCSS.Math.Content.HSS-ID.C.7 http://corestandards.org/Math/Content/HSS/ID/C/7
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: There are numerical measures that describe the direction and strength of a relationship between two quantitative variables. This lesson builds on students’ work in the 8th grade. In the 8th grade, students informally fit a line to a set of data. The students were given the equation of a line and were asked to interpret the slope and intercept. This lesson builds on those concepts by having students create a scatter plot, generate the least squares regression line, and interpret the slope and intercept in the context of the problem indicating units for each term. Vocabulary: bivariate quantitative association slope intercept units of measurement