Education Technology

Investigating Properties of Trapezoids

Published on 07/19/2006

Activity Overview

This activity uses the graphing calculator to investigate trapezoids.

Before the Activity

See the attached Activity PDF file(s) for detailed instructions for this activity.

During the Activity

Follow the procedures outlined in the activity.
Students will:

  • Use the graphing calculator to construct trapezoids.
  • Find relationships regarding angle measurement that appears to be true for all trapezoids.
  • Determine 3 ways to construct an isoceles trapezoid.
  • State at least 3 properties that are true for all isoceles trapezoids.
  • After the Activity

  • Review student results:
  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary