Education Technology

Math TODAY Challenge - Heat Watch

Published on 04/29/2004

Activity Overview

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

Students will:

  • 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.


  • 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.