12. Collecting and Fitting Quadratic Data with the CBL

Using the CBL and the graphing calculator, students work in groups to collect data describing the freefall of an object over time. The data collected includes data not relevant and that must be eliminated, and data is shifted near the y-axis to make the intercept meaningful. The students describe the meaning of the coefficients. The experiment is run again with an object that has drag (like a hat) and a model is found. The follow-up problem works with the football data from the lesson: Football and Braking Distance: Model Data with Quadratic Functions.

Technology: CBL, Graphing calculator.

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• PowerPoint materials

• TI-calculator material 1
• TI-calculator material 2