Education Technology

Middle Grades Math: Scaling the Geometry

by Texas Instruments


  • Students will create a scale and measure so that the measurements on various images on the TI-Nspire pages will represent the True values.


  • scale
  • diameter
  • circumference
  • perimeter
  • radius
  • arc length
  • millimeter
  • centimeter
  • milliliter
  • degree Fahrenheit
  • ratio
  • proportion



About the Lesson

This lesson involves scale drawings of actual images on the TI-Nspire handheld.
As a result, students will:

  • Use the geometry tools to draw line segments or other items on the images of several objects.
  • Manipulate the scale on a Geometry page.
  • Adjust the measurements on the Geometry page to represent 'True' dimensions.