Traveling Distances
http://illuminations.nctm.org/LessonDetail.aspx?ID=L387
A lesson plan for grades 9–12 Mathematics
Learn more
Help
Please read our disclaimer for lesson plans.
Legal
This catalog record is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License. This license applies to the content of this page only and does not apply to the referenced website.
In this lesson, one of a nine-part unit from Illuminations titled “Interpreting the ‘Real-Life’ Meaning of Graphical Representations of Data,” students interpret the meaning of the slope and y-intercept of the graph of real-life data. By examining the graphical representation of the data, students relate the slope and y-intercept of the least squares regression line to the real-life data. They also interpret the correlation coefficient of the resulting least squares regression line. This lesson incorporates an interactive regression line applet.
This lesson assumes that students will have introductory-level experience with linear equations and graphs. This lesson could also be used for lower level classes, omitting the discussion of correlation coefficient and other more advanced concepts.
North Carolina Curriculum Alignment
