Activity Detail

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Constructing Similar Triangles
 


Activity Overview

Students will:
  • Construct a triangle anywhere in the plane and measure its sides and angles.
  • Investigate three different methods of constructing similar triangles.
  • Try to alter the properties of their construction by moving the vertices.

  • Before the Activity

    Provide each student with a copy of the attached .pdf document.

    During the Activity

    This activity will help students visualize the properties of similar triangles by actively participating in the construction and sharing and comparing results with other students.

    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 : Triangles

    Author:
    Texas Instruments

    Level:
    9-12

    Activity Time:
    50 Minutes

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

    Apps:
    Cabri™ Jr.

    Software:
    Cabri Geometry™, TI Connect™

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

    Other:
    Visit TI Math.com.

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