Activity Overview
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
Students will:
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.
Directions:
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.