Activity Overview
In this activity, students use the CellSheet™ Application to determine geometric ratios of areas. Students determine the position of the vertices of a square that has all four vertices on the sides of a larger square and has a specified area. They also learn how quadratic functions can model geometric ratios.
Before the Activity
Install the CellSheet on the calculator using the TI Connect™, TI-Connectivity cable, and Unit to Unit cables
See the attached PDF file for detailed instructions for this activity
Print pages 51 - 52 from the attached PDF file for your class
During the Activity
Distribute the pages to your class.
Follow the Activity procedures:
Use the quadratic equation and for different x-values find the corresponding y- values
Determine the slope of the secant line that passes through 2 points
Determine the Δx - slope relationship
For values of x, use the cubic equation to find the corresponding y-values
Determine the slope of the secant line and Δx - slope relationship
Compare the Δx - slope pattern for the cubic quadratic function curves
After the Activity
Students will complete the worksheet and answer questions.
Review student results:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary