Education Technology

NYS Standard G.G.55 - Determining if angle measure is preserved under a rotation about a point.

Published on 03/16/2009

Activity Overview

The students will use the .tns documents ROTATE2 to discover the relationship between the measures of the angles of a pre-image and image after a rotation about a point.

Before the Activity

  1. Download the .tns document ROTATE2 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 understanding the relationship between the measures of the angles of a pre-image and image after a rotation about a point.

  1. Distribute the Student Worksheet for angle measure.
  2. Students use the .tns document ROTATE2 to answer questions from student worksheet.

After the Activity

Review student results from worksheet.