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Topic (Course) 
Technology 
Type 
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Why AAA does not prove congrue...

Congruence (Geometry)+ 
Flash 
Activity 

[1]

An interactive applet and associated web page that shows that angleangleangle (AAA) is not enough
to prove congruence.
The applet shows two triangles, one of which can be dragged to resize it...
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Why SSA does NOT prove congrue...

Congruence (Geometry) 
Flash 
Activity 

[1]

An interactive applet and associated web page that shows that sidesideangle is not enough
to prove congruence, because two triangles can meet the condition.
The applet shows two triangles, on...
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Paper Folding Activity

Similarity (Geometry) 
Java Applet 
Lesson Plan 

[0]

Students fold a sheet of paper (a manipulative) and also simulate folding using a JavaSketchpad activity to observe geometric relations. Students think about the angle measurements and the side measur...
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Math Forum Teacher Packet: TI ...

Similarity (Geometry) 
TINspire 
Lesson Plan 

[0]

This packet contains a copy of the original problem used to create the activity, rationale and explanation behind the “I Notice, I Wonder” focal activity, and some thoughts on why this activity works ...
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Coordinates and Similar Figure...

Similarity (Geometry) 
Computer 
Support Material 

[0]

Provides definitions and illustrations on coordinates and similar figures.
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Coordinates and Similar Figure...

Similarity (Geometry) 
Computer 
Support Material 

[0]

Provides definitions and illustrations on coordinates and similar figures.
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Geometry, Section 1

Congruence (Geometry) 
Computer 
Support Material 

[0]

A collection of illustrated concepts, including problems for students to work out, and standalone word problems. Includes automated feedback. Pre and posttests, answer sheets, additional help, tools...
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Congruence and Similarity (Get...

Congruence and similarity (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the basics of proving congruence and similarity.
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Congurent and Similar Triangle...

Congruence and similarity (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains congruence and similarity in triangles, using these concepts to prove triangles congruent, or to determine missing measurements.
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Midpoint and Congruence (Geome...

Congruence and similarity (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains basic concepts of how to identify congruent segments and to find their midpoint.
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Similar Polygons (Geometry)

Congruence and similarity (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the basics of similar polygons and congruent polygons, and the calculation of a scale factor for an enlargement or reduction. From there it explains how to write similarity s...
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Dimension and Scale Dialogue

Similarity (Geometry) 
Java Applet 
Support Material 

[1]

Discusses fractal dimension, how that dimension relates to scale, and the formula needed to calculate the fractal dimension of an object.
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Dimension for Irregular Fracta...

Similarity (Geometry) 
Java Applet 
Support Material 

[1]

Discusses the problem of determining the fractal dimension of irregular fractals and how the scale is indeterminite in these fractals.
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SelfSimilarity Dialogue

Similarity (Geometry) 
Java Applet 
Support Material 

[0]

Discusses how fractals are selfsimilar objects.
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Congruence Theorems

Congruence (Geometry) 
Java Applet 
Tool 

[1]

In this investigation, the user can explore the conditions that guarantee uniqueness of a triangle, quadrilateral, or pentagon regardless of location or orientation. Each set of conditions results in ...
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Congruent Angles  Math Open R...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of congruent angles. Three angles are shown which always
remain congruent as you drag any defining point on any angle. ...
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Congruent Lines  Math Open Re...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate congruent line segments (segments that are the same length).
The applet shows three line segments that are the same length. They al...
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Congruent Polygons  Math Open...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the congruence of polygons.
The applet presents nine polygons that are in fact congruent, but don't look it because they are reflec...
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Congruent Right Triangles  HL...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that shows how right triangles that have
the hypotenuse and one other leg the same length must be congruent.
The applet shows two right triangles, ...
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Congruent Triangles

Congruence and similarity (Geometry) 
Java Applet 
Tool 

[0]

This manipulative allows you to construct two triangles from various combinations of sides and angles. You can choose to work with any one of four different cases: SSS, SAS, ASA, and SSA
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Congruent Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[1]

This page provides three applets that you manipulate in order to discover rotation, translation, and reflection. Then below are descriptions of sideangleside, anglesideangle, and sidesideside (...
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Congruent Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Investigate the different side and angle arrangements (SSS or ASA) that cause two triangles to be always congruent or noncongruent.
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Congruent Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of congruent triangles.
Applets show that triangles are congruent if they are the same, rotated, or reflected.
In ea...
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Congruent Triangles (1)

Congruence (Geometry) 
Java Applet 
Tool 

[1]

An applet is provided that helps you visualize the proofs to the problems given that deal with congruent triangles.
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Congruent Triangles (2)

Congruence (Geometry) 
Java Applet 
Tool 

[0]

An applet is provided that helps you visualize the proof to the problem given that deals with congruent triangles.
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