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Quadrilaterals in Quadrilatera...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Java Sketchpad applet that illustrates the remarkable fact that the midpoints of any quadrilateral form a parallelogram.
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Tetragon, definition and prope...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet illustrating the properties of a tetragon (4 sided polygon, aka quadrilateral).
The applet shows a tetragon where the user can drag any vertex to reshape...
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Two Squares

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Find out what quadrilateral is formed at the midpoints of the segments connecting these two squares.
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Two Tapes

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

Figure out what quadrilateral is created by these two pieces of overlapping tape using the provided applet.
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What Is A Quadrilateral?

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates what a quadrilateral is.
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What Is A Trapezium?

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates what a trapezium is.
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Quadrilaterals

Quadrilaterals (Geometry) 
JavaScript 
Tool 

[0]

The user reviews quadrilaterals and the special quadrilaterals commonly used in geometry. After viewing examples, users can interactively test their understanding of the different properties of quadr...
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Math4Mobile: Quad2Go

Quadrilaterals (Geometry) 
Mobile Device 
Tool 

[0]

Quad2Go is an application for cellular mobile phones that offers ways of learning about quadrilaterals by generating examples, observing, and experimenting with examples as the basis for generalized c...
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Exploring Quadrilaterals

Quadrilaterals (Geometry) 
Sketchpad 
Tool 

[0]

Students explore various types of quadrilaterals, investigating their properties and figuring out how the various shapes relate to each other. The link to the tool itself is to a zip file that cont...
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Proof as Discovery: Kite Midpo...

Quadrilaterals (Geometry) 
Sketchpad 
Tool 

[0]

Students investigate and prove a property of kites, and use the proof to make a discovery about other quadrilaterals. The link to the tool itself is to a zip file that contains both the sketch and...
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Quadrilateral Exploration: Sha...

Quadrilaterals (Geometry) 
Sketchpad 
Tool 

[0]

Students first use the seven "Quadrilateral Makers" (square maker, rhombus maker, rectangle maker, parallelogram maker, kite maker, trapezoid maker, and quadrilateral maker) to make a design of their ...
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Quadrilaterals

Quadrilaterals (Geometry) 
Sketchpad 
Tool 

[0]

Investigate the parallelogram, rectangle, square, rhombus, and isosceles trapezoid. Includes an activity in PDF format and a prepared sketch.
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Midpoint Quadrilateral Notice/...

Quadrilaterals (Geometry) 
TINspire 
Tool 

[0]

Students write what they notice and wonder about a midpoint quadrilateral, and then use TINspire™ technology to add auxiliary lines and justify their conjectures about the midpoint quadrilateral.
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