Education Technology

Cabri™ Jr. App

Published on 04/18/2006

Activity Overview

Students use the Cabri Jr. App to construct, analyze, and transform mathematical models and geometric diagrams.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Use the Cabri Geometry software to transfer files to the computer

  • During the Activity

    Follow the Activity procedures:

  • Select the Triangle option
  • Construct a triangle
  • Measure the interior angles of the triangle
  • Move the vertex of the triangle and alter the figure
  • Observe that the sum of the three interior angles of the triangle remains the same
  • Explore other geometric figures
  • After the Activity

  • Review students work and discuss difficult concepts