Education Technology

Math TODAY - Wildfires Nearly Snuffed

Published on 06/09/2008

Activity Overview

Students will use the data from the USA TODAY® Infograph to explore the relationship between area and perimeter for rectangles and circles and they will make generalizations about the shape of the rectangle that will produce the smallest perimeter.

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:

  • Convert measurements within the customary system.
  • Investigate relationships between area and perimeter of rectangles.
  • Find the radius and circumference of a circle with a given area.
  • Determine the type of rectangle with a given area that will produce the smallest perimeter.

  • 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.