Education Technology

Middle Grades Math: Regressions of Olympic Proportions

by Texas Instruments


Students use the Manual-Fit and Linear Regression commands to find lines of best fit to model Olympic data.

Key Steps

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    Compare manual lines of best fit to calculator generated regression lines. First students create a scatter plot of Olympic 100M dash data for men and women. Using the Manual-Fit command, students will draw a line of best fit based on sight. They will use this line to predict future times.

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    Then, students use the Linear Regression command to compare the line they originally found to the linear regression the calculator finds. Students will hypothesize why the two equations differ.