Students will have the opportunity to organize data from the USA TODAY Snapshot® "Is leisure time really shrinking?" into two scatter plots and determine the quadratic model for each scatter plot.
Before the Activity
If you are using the TI-Navigator™ System with the TI-73 Explorer™you will need the attached .pdf file.
See the attached Teacher Edition PDF file for notes and guidelines for this activity. The Technology Guide PDF file includes step-by-step calculator instructions with screen shots.
If you are using the TI-Navigator™ Classroom Learning System, see the TI-Navigator Basic Skills Guide PDF file for information on how the system can be integrated into your activity.
During the Activity
Create two scatter plots from the data.
Explore quadratic regression models for the scatter plots.
Find the intersection for the system of quadratics equations.
Find the vertex of a quadratic model.
Calculate the percent error between two values for one of the data sets.
Distribute the Student Edition PDF file to your class.
Follow the activity procedures outlined in the student document.
You may use the Transparency PDF file to display a large image of the USA TODAY® graphic during the activity.
After the Activity
Distribute the assessment questions or send the attached LearningCheck™ assessment to your class to gauge student understanding of the concepts presented in the activity.