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Topic (Course) 
Technology 
Type 
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What Is A Trapezium?

Quadrilateral properties (Math 7) 
Java Applet 
Tool 

[0]

This applet illustrates what a trapezium is.
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Exploring Quadrilaterals

Quadrilaterals (Geometry) 
Sketchpad 
Activity 

[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 activity itself is to a zip file that ...
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Geometry Activities for Middle...

Quadrilaterals (Geometry) 
Sketchpad 
Activity 
$ 
[0]

These activities provide students with the opportunity to explore geometric concepts such as symmetry, transformations, and even fractal geometry in a way no other teaching tool can. The dynamic ca...
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Midpoint Quadrilaterals

Quadrilaterals (Geometry) 
Sketchpad 
Activity 

[0]

Students construct the midpoints of the sides of a quadrilateral, connect them to form the midpoint quadrilateral, and then discover interesting properties of the midpoint quadrilateral. The link t...
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Proof as Discovery: Kite Midpo...

Quadrilaterals (Geometry) 
Sketchpad 
Activity 

[0]

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

Quadrilaterals (Geometry) 
Sketchpad 
Activity 

[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 
Activity 

[0]

Investigate the parallelogram, rectangle, square, rhombus, and isosceles trapezoid. Includes an activity in PDF format and a prepared sketch.
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Two Minimum Length Problems an...

Quadrilaterals (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration of minimum distances from vertices of a triangle or quadrilateral to a point within the figure, using Geometer's Sketchpad.
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An Introduction to Quadrilater...

Quadrilaterals (Geometry) 
Java Applet 
Lesson Plan 

[0]

An introduction to quadrilaterals.
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Math Forum Teacher Packet: TI ...

Quadrilaterals (Geometry) 
TINspire 
Lesson Plan 

[0]

This packet contains a copy of the original problem used to create the activity, rationale and explanation behind the “I Notice, I Wonder” focal activity, and some thoughts on why this activity works ...
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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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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...
More: lessons, discussions, ratings, reviews,...

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 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 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 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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Parallelograms Dialogue

Quadrilaterals (Geometry) 
Java Applet 
Support Material 

[0]

Introduces students to parallelograms and rombuses and defines the characteristics necessary to determine each shape.
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Properties of Quadrilaterals (...

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the properties of different types of quadrilaterals.
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Quadrilaterals (Amsco Integrat...

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains quadrilaterals and types of quadrilaterals such as trapezoid, parallelogram, rectangle, rhombus, square, etc.
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Quadrilaterals (Getting Starte...

Quadrilaterals (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the basics of quadrilaterals.
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Quadrilaterals Dialogue

Quadrilaterals (Geometry) 
Java Applet 
Support Material 

[0]

Introduces students to quadrilaterals and defines the characteristics of the polygon.
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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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Area of a Square  Math Open ...

Quadrilaterals (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a square.
The applet shows a square with all vertices draggable. As you drag any one, the area id continuously calculat...
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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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