The other graphs the data. Instruct students to take one large sheet of newspaper and tear it in half. Stack the 2 sheets, fold, and tear them in half. Continue in this manner, fold, tear, stack, record, until the stack measures 1 inch high. When tearing is completed, pass out worksheets and graphing calculators.
Students answer worksheets as a group.
The worksheet is self-explanatory. A graphing calculator can be used to see the curve of best fit. If students have access to the web, have them use this site to enter data and graph the curve. Use your imagination. Here's a neat way to visually represent perfect squares.