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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Opposite Rays  Math Open Refe...

Points and lines (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate opposite rays.
The applet shows two rays with a common endpoint and can be dragged with the mouse.
If the rays are in a line, the m...
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Smithmath Customizable Graphin...

Points and lines (Geometry)+ 
Java Applet 
Tool 

[0]

Play this customizable game by entering functions that "hit" certain coordinates while avoiding others. Players (or teachers) can add as many of the coordinates to target or avoid, as well as set colo...
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The concept of locus  Math Op...

Points and lines (Geometry)+ 
Java Applet 
Tool 

[0]

A web page and interactive applet that illustrate the concept of locus.
The applet shows a model of the plane populated with "all" the possible points on the plane. Choosing to highlight...
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Webbased Interactive Tools an...

Points and lines (Geometry)+ 
Java Applet 
Tool 

[0]

This resource contains a collection of graphs, plots and statistical charts freely available over the Internet.
More: lessons, discussions, ratings, reviews,...

Cartesian Graphs and Polar Gra...

Polar Coordinates (Trigonometry)+ 
Sketchpad 
Tool 

[1]

Students compare rectangular graphs and polar graphs for functions of the form y = a sin(bx) and r = a sin(b?). Students analyze how the period and amplitude of a Cartesian graph correlate to featu...
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Apothem of a Regular Polygon ...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the apothem of a regular polygon. The applet shows a
regular polygon where the user can alter the number of sides and resize it by ...
More: lessons, discussions, ratings, reviews,...

Area of a Regular Polygon  Ma...

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a regular polygon.
The applet presents a regular polygon where the user can drag any vertex to resize it, and change the ...
More: lessons, discussions, ratings, reviews,...

Circumcircle of a Polygon  Ma...

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the properties of a circumcircle of a polygon.
The applet shows a regular polygon where the user can drag the vertices to reshape i...
More: lessons, discussions, ratings, reviews,...

Classification of Quadrilatera...

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive Java illustration that highlights specific properties of various quadrilaterals. Quadrilaterals may be convex, orthodiagonal, cyclic, inscriptible, having parallel or equal sides, equil...
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Concave Polygons  Math Open R...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of a concave polygon 
one where at least one interior angle is greater than 180°. The applet shows an irregular po...
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Constructing a pentagon inscri...

Polygons (Geometry)+ 
Flash 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep instructions on how to construct
a pentagon inscribed in a circle using only a compass and straightedge.
The method begins...
More: lessons, discussions, ratings, reviews,...

Convex Polygon  Math Open Ref...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the concept of a convex polygon 
one where all interior angle are less than 180°. The applet shows an irregular convex polygon...
More: lessons, discussions, ratings, reviews,...

Decagon, definition and prope...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a decagon (10 sided polygon).
The applet shows a decagon where the user can drag any vertex to reshape it.
User can see t...
More: lessons, discussions, ratings, reviews,...

Diagonals of a polygon  Math ...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the diagonals of a polygon.
The applet shows a polygon with the diagonals drawn. The user can drag any vertex, make it regular or ir...
More: lessons, discussions, ratings, reviews,...

Dodecagon, definition and prop...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a dodecagon (12 sided polygon).
The applet shows a dodecagon where the user can drag any vertex to reshape it.
User can s...
More: lessons, discussions, ratings, reviews,...

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

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

Euclid's definitions deal with inscribed and circumscribed figures within another figure (polygon or circle). The quide then inspects the structure of these definitions. The To reset the applet, pre...
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Heptagon, definition and prope...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a heptagon (7 sided polygon).
The applet shows a heptagon where the user can drag any vertex to reshape it.
User can see ...
More: lessons, discussions, ratings, reviews,...

Hexagon, definition and proper...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a hexagon (6 sided polygon).
The applet shows a hexagon where the user can drag any vertex to reshape it.
User can see th...
More: lessons, discussions, ratings, reviews,...

Incircle of a Polygon  Math O...

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the incircle of a polygon
 The largest circle the will fit inside a polygon that touches every side. The applet shows a polygon wh...
More: lessons, discussions, ratings, reviews,...

Irregular Polygons  Math Open...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the behavior of irregular polygons.
The applet shows initially an irregular convex polygon.
All vertices are draggable and when dragged sh...
More: lessons, discussions, ratings, reviews,...

Nonagon  Math Open Reference

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a nonagon (9 sided polygon).
The applet shows a nonagon where the user can drag any vertex to reshape it.
User can see th...
More: lessons, discussions, ratings, reviews,...

Octagon, definition and proper...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a octagon (8 sided polygon).
The applet shows an octagon where the user can drag any vertex to reshape it.
User can see t...
More: lessons, discussions, ratings, reviews,...

Pentagon, definition and prope...

Polygons (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a pentagon (5 sided polygon).
The applet shows a pentagon where the user can drag any vertex to reshape it.
User can see ...
More: lessons, discussions, ratings, reviews,...

Perimeter of a polygon  Math ...

Polygons (Geometry)+ 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a polygon.
A polygon is shown that can be resized by dragging its vertices. As you drag, the perimeter is continuously rec...
More: lessons, discussions, ratings, reviews,...

Polygon Creator

Polygons (Geometry) 
Java Applet 
Tool 

[1]

With this applet you can create polygons. The trick is to figure out the properties of polygons (the sum of the interior angles) so that you can instruct the program to produce legitimate polygons. ...
More: lessons, discussions, ratings, reviews,...

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