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Technology 
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Polygons Unit Quiz

Quadrilaterals (Geometry) 
JavaScript 
Tool 

[2]

Users interactively test their understanding of polygons and area with this unit quiz.
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Area of a Parallelogram

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[1]

Illustrates and defines the formula for the area of a parallelogram. From Illuminations' IGD: Interactive Geometry Dictionary.
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Basic Areas  of a Rectangle a...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[1]

This applet has you manipulate a rectangle and triangle in order to discover the area formulas.
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Area of Polygons and Circles

Quadrilaterals (Geometry) 
JavaScript 
Tool 

[1]

The user reviews area and learns the different formulas for the area of special geometric figures. After viewing examples, users can interactively practice finding the area of shapes with given param...
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Proof as Verification: Areas

Quadrilaterals (Geometry) 
Sketchpad 
Activity 

[0]

Students form a conjecture about the ratio of two areas in a quadrilateral, and use Sketchpad to search for a proof. In the process they verify or disprove their results for two different kinds of ...
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Relationships Between Area and...

Quadrilaterals (Geometry) 
Excel 
Lesson Plan 

[0]

In this activity, students explore the relationships between area and perimeter by fixing one value and maximizing the other. Students will explore the relationship between perimeter and area of recta...
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Area of a Rectangle (Geometry)

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the formula used to calculate the area of a rectangle.
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Area of a Square (Geometry)

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This mini lesson explains the formula used to calculate the area of a square.
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Area of a Rhombus (Geometry)

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This mini lesson explains the formula used to calculate the area of a rhombus.
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Area of a Trapezoid (Geometry)

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This mini lesson explains the formula used to calculate the area of a trapezoid.
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The Geometer's Sketchpad  3 L...

Quadrilaterals (Geometry) 
Computer 
Tool 

[0]

With Geometer's Sketchpad you can open these applets and do the three labs on rotation/translation, area of a parallelogram, and area of a rectangle.
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XP Math: Finding Areas of Para...

Quadrilaterals (Geometry) 
Flash 
Tool 

[0]

In this game, students race the clock to find the areas (with units) of parallelograms.
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XP Math: Finding Perimeters of...

Quadrilaterals (Geometry) 
Flash 
Tool 

[0]

In this game, students race the clock to find perimeters of parallelograms.
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Area and Perimeter  PDA versi...

Quadrilaterals (Geometry) 
Flash 
Tool 

[0]

This activity is designed to support the understanding of perimeter and area, and to run on PDAs.
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Constructing Right Triangles

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Provides two applets that demonstrate how to construct right triangles with different sets of given information
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Special Triangles

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Provides an applet that demonstrates how to construct triangle given the lengths of the sides.
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Right Angles

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Provides an applet that demonstrates how to construct right angle using a straightedge and a compass.
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Two Squares  Maximum Area

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet has a corresponding problem that deals with maximizing the area of two overlapping squares.
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Dividing a Quadrilateral

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet demonstrates how to divide a quadrilateral into two equal halves.
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Area of a Rectangle

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Illustrates and defines the formula for the area of a rectangle. From Illuminations' IGD: Interactive Geometry Dictionary.
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Perimeter of a Quadrilateral

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet demonstrates the rule of the perimeter of a quadrilateral.
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The Area of a Trapezium

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet demonstrates the source of the area formula for the trapezium.
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Geoboard  Coordinate

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Rectangular geoboard with x and y coordinates.
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Area of a Rectangle  Math Ope...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a rectangle. The user can drag the vertices of the rectangle and the other points change automatically to ensure it rem...
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Area of a Kite  Math Open Ref...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that deals with the area of a kite, (a quadrilateral with two distinct pairs of equal adjacent sides).
The applet shows a kite and the user can reshap...
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