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Acute triangle

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Description

Overview:
An interactive applet and associated web page that demonstrate the three types of triangle: acute, obtuse and right. The applet shows a triangle that is initially acute (all angles less then 90 degrees) which the user can reshape by dragging any vertex. There is a message changes in real time while the triangle is being dragged that tells if the triangle is an acute, right or obtuse triangle and gives the reason why. By experimenting with the triangle student can develop an intuitive sense of the difference between these three classes of triangle. 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 Alignment1 (1 user)
Quality of Explanation of the Subject Matter3 (1 user)
Utility of Materials Designed to Support Teaching2 (1 user)
Quality of AssessmentsN/A
Quality of Technological Interactivity3 (1 user)
Quality of Instructional and Practice ExercisesN/A
Opportunities for Deeper Learning1 (1 user)

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