Education Technology

Line of Best Fit

Activity Overview

In this activity, students learn to collect data and plot the data. They use the manual-fit feature to form a line of best fit.

Before the Activity

  • Set up the calculator as explained in the appendix file
  • See the attached PDF file for detailed instructions for this activity
  • Print the pages from the attached PDF file for the class
  • During the Activity

    Distribute the pages to the class.

    Follow the Activity procedures:

  • Collect the data of shoe sizes of students in the class and enter the data as a list on the calculator
  • Plot the data as a scatter plot
  • Manually fit the data by selecting the points
  • Use the arrow keys to change the slope and intercept of the manual-fit line
  • Select best fit option and find the equation of the line
  • After the Activity

    Review student results:

  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary