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Description

Overview:
An interactive applet and associated web page that shows that angle-angle-angle (AAA) is not enough to prove congruence. The applet shows two triangles, one of which can be dragged to resize it, showing that although they have the same angles they are not the same size and thus not congruent. The web page describes all this and has links to other related pages. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
Subject:
Geometry
Material Type:
Reading, Simulation
Author:
Provider:
Math Open Reference
Date Added:
02/16/2011
License:
http://www.mathopenref.com/site/terms.html
Language:
English
Media Format:
Graphics/Photos, Text/HTML

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Average Score (3 Points Possible)
Degree of Alignment0.2 (3 users)
Quality of Explanation of the Subject Matter1.7 (3 users)
Utility of Materials Designed to Support Teaching1.7 (3 users)
Quality of AssessmentsN/A
Quality of Technological Interactivity2.7 (3 users)
Quality of Instructional and Practice Exercises0 (1 user)
Opportunities for Deeper Learning0.5 (2 users)

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