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Technology 
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Euclid's Elements, Book I, Pro...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that when corresponding sides of two triangles are equal then their respective corresponding angles are also equal. The guide then examines the structure of the proposition...
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Euclid's Elements, Book I, Pro...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that when two triangles have angleside angle or angleangleside (in that order) equality then the triangles are congruent. The guide then examines the structure of the ...
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Two Regular Triangles

Congruence (Geometry) 
Java Applet 
Tool 

[1]

This applet corresponds to a problem dealing with triangle congruence within 2 overlapping regular triangles.
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Two Squares  Finding Angles a...

Congruence (Geometry) 
Java Applet 
Tool 

[0]

This threepart problem deals with angles, triangles, and congruence within areas created by overlapping squares. It has a corresponding applet that helps you to visualize the solutions.
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What is Meant by Congruence?

Congruence (Geometry) 
Java Applet 
Tool 

[0]

This applet shows you what is meant by triangle congruence.
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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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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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Geoboard

Congruence and similarity (Geometry) 
Java Applet 
Tool 

[0]

Use geoboard to illustrate area, perimeter, and rational number concepts.
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Relations and Sizes Unit Quiz

Congruence and similarity (Geometry) 
JavaScript 
Tool 

[0]

Users can interactively practice their understanding of right triangles, similar figures, congruent figures, and the Pythagorean theorem.
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Conic Graphing App Activity

Conic Sections (PreCalculus) 
TI83/TI84 
Activity 

[1]

Stepbystep directions on how to use the Conic Graphing App to help students learn about circles, ellipses, hyperbolas, and parabolas, and solve for the conic's characteristics. Equations are present...
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Exploring Conic Sections with ...

Conic Sections (PreCalculus) 
Sketchpad 
Activity 
$ 
[0]

Students will explore the richness of conic sections by building their own physical models and then constructing more flexible models with Sketchpad. Students retain a solid connection with th...
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Trace of Shadow

Conic Sections (PreCalculus) 
Java Applet 
Activity 

[0]

When the sun moves around in the sky, the shadow cast by a vertical stick moves on the ground. The tip of the shadow traces some kind of curve. The curve depends on the observation point, and it also ...
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Conic Sections and Special Poi...

Conic Sections (PreCalculus) 
Flash 
Support Material 

[0]

This minilesson explains how to identify the type of conic section an equation represent, as well as how to identify its special points and graph it.
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Parametric Representations of ...

Conic Sections (PreCalculus) 
TI Calculator 
Support Material 

[0]

This brief monograph is a learning/teaching tool to graph parabolas, ellipses, and hyperbolas using parametric equations. The corresponding trigonometric conversions and explanations are included.
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Conic Graphing App

Conic Sections (PreCalculus) 
TI83/TI84 
Tool 

[0]

This App will present equations in function, parametric, or polar form and provides a simple way to graph the four conic shapes: circle, ellipse, hyperbola, and parabola. The required parameters can b...
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Equation of a Parabola

Conic Sections (PreCalculus) 
Flash 
Tool 

[0]

A parabola is the set of points that are equally distant from the focus point and the directrix. This Tab Tutor program will help you learn about the equation of a parabola and how to use it to derive...
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GeoCalc

Conic Sections (PreCalculus) 
Computer 
Tool 

[0]

Macintosh shareware for calculating the area, perimeter, sides, angles, and other measures of two and threedimensional shapes such as ellipses, rectangles, triangles, trapeziums, parallelograms, pol...
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Geometry Expressions

Conic Sections (PreCalculus) 
Computer 
Tool 
$ 
[0]

Geometry Expressions is an interactive symbolic geometry system. This means: Geometric figures can be defined by either symbolic constraints or numeric locations. Measurements on your drawing are n...
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Graphing Calculator (formerly ...

Conic Sections (PreCalculus) 
Computer 
Tool 
$ 
[1]

A very powerful graphing program that is also especially easy to use. You can graph functions in two or more dimensions using different kinds of coordinates. You can make animations and save as movies...
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Laboratory

Conic Sections (PreCalculus) 
Java Applet 
Tool 

[0]

When the sun moves around in the sky, the shadow cast by a vertical stick moves on the ground. The tip of the shadow traces some kind of curve. The curve depends on the observation point, and it also ...
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Math911

Conic Sections (PreCalculus) 
Computer 
Tool 
$ 
[4]

Tutorial feebased software for PCs that must be downloaded to the user's computer. It covers topics from prealgebra through precalculus, including trigonometry and some statistics. The software pos...
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The Focusdirectrix Definition

Conic Sections (PreCalculus) 
Java Applet 
Tool 

[0]

The CabriJava applet shows a conic with focus F, directrix L passing through a point P. The choice of P determines the eccentricity  as the ratio PQ/PF. You can move F and P to see what shapes ar...
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