Activities

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- Before the Activity Files
- ti_cabri_act3.pdf
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Math: Geometry: Transformational Geometry
Author

Charles Vonder Embse Eugene Olmstead
Level

6-8
9-12
Activity Time

90 Minutes
Device
- TI-83 Plus Family
- TI-84 Plus
- TI-84 Plus Silver Edition
Software

TI Connect™
Applications
- Cabri Geometry for TI-89
Accessories

TI Connectivity Cable
Unit-to-Unit link cables
Other Materials

This is Activity 10 from the EXPLORATIONS Book: "Cabri Jr.: Interactive Geometry Actviites and Investigations".
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Dilations in the Plane

Activity Overview

A dilation is a transformation that produces a figure with a different size from that of the original figure. In this activity, you will explore the properties of dilations and the relationships between the original and image figures.

Before the Activity

See the attached PDF file for detailed instructions for this activity.
Print the appropriate pages from the Activity for your class.
Install the Cabri®: Jr. App on the students' graphing calculators using TI Connect™, a TI Connectivity Cable and the Unit-to-Unit Link Cable.

During the Activity

Distribute the appropriate pages from the Activity to your class
Follow the Activity procedures

Investigate properties of a dilation

After the Activity

Review student answers:

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

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Download

Before the Activity Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Software

Applications

Cabri Geometry for TI-89

Accessories

Other Materials