Education Technology

Properties of Parallelograms

Published on 11/16/2008

Activity Overview

In this activity, students will discover the properties of a parallelogram. Students will measure various components of a parallelogram to make conjectures about its properties.

Before the Activity

Download the TNS file and make it available to students.

  • Students need to be familiar with the following terms: alternate interior angles, bisect, opposite angles, opposite sides, parallel lines, and slope.
  • This activity can be used as an introduction to the properties of a parallelogram or as a refresher for proofs involving parallelograms.
  • During the Activity

  • This activity is teacher-led.
  • Emphasize the importance of students not working ahead. Otherwise, it may be difficult to troubleshoot their errors.
  • It is sometimes helpful for students to work with a partner.