Activity Detail
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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


    • Students will:
  • 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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    Subject Area:
    Math : Geometry : Transformations

    Author:
    Charles Vonder Embse Eugene Olmstead

    Level:
    9-12, 5-8

    Activity Time:
    90 Minutes

    Device:
    TI-83 Plus Family, TI-84 Plus Family

    Apps:
    Cabri Geometry

    Software:
    TI Connect™

    Accessories:
    TI Connectivity Cable, Unit-to-Unit link cables

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

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