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Topic (Course) 
Technology 
Type 
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Constructing the circumcenter ...

Centers of triangles (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep animated instructions on how to
construct the circumcenter of a triangle.
The animation can be run either co...
More: lessons, discussions, ratings, reviews,...

Constructing the incenter of a...

Centers of triangles (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep animated instructions on how to
construct the incenter of a triangle.
The animation can be run either contin...
More: lessons, discussions, ratings, reviews,...

Constructing the orthocenter o...

Centers of triangles (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep instructions on how to construct the orthocenter of a triangle
using only a compass and straightedge.
The method used invo...
More: lessons, discussions, ratings, reviews,...

Euclid's Elements, Book 4, Pro...

Centers of triangles (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe a circle within a given triangle. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over th...
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Euclid's Elements, Book 4, Pro...

Centers of triangles (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to circumscribe a circle about a given triangle. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over...
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Euler Line

Centers of triangles (Geometry) 
Java Applet 
Tool 

[0]

Use this applet to find out how to construct the Euler line. Part of Illuminations' IGD: Interactive Geometry Dictionary.
More: lessons, discussions, ratings, reviews,...

Orthocenter of a triangle. Mat...

Centers of triangles (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet demonstrating the concept of the orthocenter of a triangle.
The applet shows a triangle where the user can drag the vertices around. The orthocenter and...
More: lessons, discussions, ratings, reviews,...

Simson Line of a Triangle

Centers of triangles (Geometry) 
Java Applet 
Tool 

[1]

Use this applet to discover how to construct the Simson line of a triangle.
More: lessons, discussions, ratings, reviews,...

The Incenter of a Triangle  M...

Centers of triangles (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet demonstrating the concept of the incenter of a triangle.
The applet shows a triangle where the user can drag the vertices around. The incenter and the a...
More: lessons, discussions, ratings, reviews,...

Triangle Circumcenter  Math O...

Centers of triangles (Geometry) 
Java Applet 
Tool 

[0]

The applet shows a triangle which the user can resize by dragging any of its vertices.
It shows the three perpendicular bisectors of the sides and the point where they intersect  the circumc...
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Adjustable Spinner

Certain, likely, impossible (Math 4)+ 
Java Applet 
Tool 

[3]

Students can create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities.
More: lessons, discussions, ratings, reviews,...

Crazy Choices Game

Certain, likely, impossible (Math 4)+ 
Java Applet 
Tool 

[0]

Three players play games of chance using dice, cards, spinners or coin tosses, to compare theoretical and experimental probabilities.
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Racing Game with Two Dice

Certain, likely, impossible (Math 4)+ 
Java Applet 
Tool 

[0]

Two players each roll a die, and the lucky player moves one step to the finish. Parameters: what rolls win and how many steps to the finish line.
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Spinner

Certain, likely, impossible (Math 4)+ 
Java Applet 
Tool 

[0]

Students can create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities.
More: lessons, discussions, ratings, reviews,...

The Random BallPicking Machin...

Certain, likely, impossible (Math 4)+ 
Shockwave 
Tool 

[1]

Predict the likelihood that a colored ball gets randomly selected out of a bowl. Then pull a lever to pick a ball at random, keeping track of which color comes out, and comparing the result with what ...
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Understanding Experimental Pro...

Certain, likely, impossible (Math 4)+ 
Java Applet 
Tool 

[0]

Experiment with experimental probability using a fixed size section spinner, a variable section spinner, 2 regular 6sided number cubes or design your own number cubes. Appropriate for elementary grad...
More: lessons, discussions, ratings, reviews,...

FunctionComposition.java

Chain rule and implicit diff. (Calculus) 
Java Applet 
Support Material 

[0]

Source code for the FunctionComposition applet.
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Chain Rule

Chain rule and implicit diff. (Calculus) 
Flash 
Tool 

[1]

Animated proof of the chain rule, and examples of using the chain rule to calculate various derivatives.
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Composition: The Chain Rule

Chain rule and implicit diff. (Calculus) 
Java Applet 
Tool 

[0]

A Java applet that illustrates the chain rule for derivatives, with questions to answer using the applet. Includes a rescalable presentation version with large fonts.
More: lessons, discussions, ratings, reviews,...

FunctionComposition Applet

Chain rule and implicit diff. (Calculus) 
Java Applet 
Tool 

[1]

View graphs of functions, their composition, and tangent lines to each function. Includes extensive directions for customizing the applet.
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The Chain Rule

Chain rule and implicit diff. (Calculus) 
Java Applet 
Tool 

[0]

Illustrates the chain rule.
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Chords in a Circle

Chords (Geometry) 
Sketchpad 
Activity 

[0]

Students construct chords in a circle and manipulate them to discover various properties. The link to the activity itself is to a zip file that contains a pdf file of the activity.
This i...
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Archeology Problem

Chords (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson/problem requires that students be able to construct chords to a circle and perpendicular lines in Geometer's Sketchpad.
More: lessons, discussions, ratings, reviews,...

Chord (of a circle)  Math Ope...

Chords (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate a chord of a circle.
The applet shows a circle and two draggable points on its periphery, with the chord drawn between them.
A c...
More: lessons, discussions, ratings, reviews,...

Common Tangents

Chords (Geometry) 
Java Applet 
Tool 

[0]

This applet helps you discover the common tangents between two circles.
More: lessons, discussions, ratings, reviews,...

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