My Algebra 2 students needed some "hands on" experiences to help them better understand how curve-fitting could be used to model a real-life situation, so I developed this lab to help them. For it to work, you'll need at least one meterstick, one ball, and one TI graphing calculator per group. If you have a variety of types of balls (superballs, tennis balls, and so forth), your students will get more varied results.
At its heart, students are dropping a ball from a given height (the release height), and then measuring the rebound height, which is typically a fixed fraction of the release height.
Students then make a graph of the rebound height as a function of the release height, and it creates a linear, direct variation graph.
Of course, if students investigated further, and the ball were allowed to bounce repeatedly, they would end up with a decaying exponential graph.
This worksheet is intended to be written on directly.
Please download the pdf preview file first, so you can see exactly what's included; the product file is a word document, which you may personalize for your students.
Keywords: direct variation, lab, activity, hands-on, real-world, Jonnard