Students will explore linear & quadratic functions to determine how they model the relationship between air temperature & heat index. Once the models are determined, students will make predictions about the heat index when given a certain temperature.
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
Model real-world data with linear and quadratic functions.
Create scatterplots using real-world data.
Compare data in graphical and numerical form.
Analyze rate of change.
Use piecewise functions to connect models.
Understand patterns, relations, and functions.
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.