Education Technology

New York State Standard G.G.32 - Exploring the exterior angles of a triangle.

Activity Overview

The students will use the .tns document EXTTRI to manipulate a triangle and discover the relationship between the remote interior angles and an exterior angle of a triangle.

Before the Activity

  1. Download the .tns document EXTTRI to handhelds using TI-Nspire Computer link software or Connect to Class software.
  2. Students should do the worksheet "Using TI-Nspire to Explore".

During the Activity

This activity is a lesson launcher for exterior angles of a triangle.

  1. Distribute Student Worksheet for Exterior angles of a triangle.
  2. Students use the .tns document EXTTRI to answer questions from student worksheet.

After the Activity

Review student results from worksheet.