Education Technology

# Activities

• ##### Subject Area

• Math: Geometry: Transformational Geometry

9-12

60 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• ##### Software

TI-SmartView™

## Working with Point Rotations in the Coordinate Plane

#### Activity Overview

Using Cabri Jr. and the properties of rotations to get a true understanding of how a figure is rotated about a point.

#### Before the Activity

1. Make sure that the students have an understanding of rotations. This lesson will provide a more precise understanding of point rotation, a topic that some students have a difficult time with. They will use the basic rotation properties to explore the properties of point rotation. 2. Load the appvar ?ROTPT? onto the student?s calculator.

#### During the Activity

See attachment file for activity list. Through this process, the student will explore rotations about a point, how the figure is rotated a certain amount of degrees, and how the distnace holds between the point of rotation to the figure.