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Topic (Course) 
Technology 
Type 
$? 
Rating 

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.
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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...
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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.
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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.
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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...
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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.
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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.
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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...
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Common Tangents

Chords (Geometry) 
Java Applet 
Tool 

[0]

This applet helps you discover the common tangents between two circles.
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Euclid's Elements, Book 3, Pro...

Chords (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that chords that are equally distant from the center are equal and vice versa. The guide then examines the structure of the proposition. The To reset the applet, press "r"...
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Euclid's Elements, Book 4, Pro...

Chords (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe a given segment in a circle whose diameter is greater than or equal to the segment (making the segment a chord of the circle). The guide then examines the s...
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Euclid's Elements, Book III, D...

Chords (Geometry) 
Java Applet 
Tool 

[0]

Provides Euclid's definition of similar segments of a circle and inspects it. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book III, P...

Chords (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that two points on the circumference are connected by a segment within the circle. The guide then examines the structure of the proposition. The To reset the applet, press...
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Euclid's Elements, Book III, P...

Chords (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states properties of segments within a circle. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over the diagram.
More: lessons, discussions, ratings, reviews,...

Euclid's Elements, Book III, P...

Chords (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states properties of segments within a circle. The guide then examines the structure of the proposition. The To reset the applet, press "r" while your cursor is over the diagram.
More: lessons, discussions, ratings, reviews,...

Examining Segments in Circles

Chords (Geometry)+ 
Sketchpad 
Tool 

[0]

Investigate the segment relationships in circles relating to chords, secants and tangents.
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