Determine how close the line is to the scatter plot. Clear video instruction shows how to plot a scatter plot and find the best fit line using the linear regression function on a calculator. Pupils use the information from the calculator to find the correlation coefficient to determine the strength and direction of the correlation. They also use residuals from the graph to help find how well the best fit line fits the data and then practice their skills with a worksheet.

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CCSS: Designed
Instructional Ideas
  • Provide a background lesson on the data calculation that is used to find the correlation coefficient
Classroom Considerations
  • Assumes understanding of determining the slope and y-intercept from an equation
  • Lesson three in the four-part Unit 5 series
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information
  • Provides an organizer to keep notes during lesson presentation
  • Includes an exit ticket to check for understanding
  • None
Common Core