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Midpoint Quadrilaterals

Parallelogram (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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Quadrilaterals

Parallelogram (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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Math Forum Teacher Packet: TI ...

Parallelogram (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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Geometry, Section 2

Parallelogram (Geometry) 
Computer 
Support Material 

[0]

A collection of illustrated concepts including problems for students to work out, and standalone word problems. Includes automated feedback. Pre and posttests, answer sheets, additional help, tools,...
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Parallelogram, definition and...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the definition and properties of a parallelogram.
The applet shows a parallelogram, any vertex of which the user can drag. The other points then ...
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Area of a Parallelogram  Math...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet showing the ways to calculate the area of a parallelogram. The user can drag the vertices of the parallelogram and the other points change automatically to ensure ...
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Classification of Quadrilatera...

Parallelogram (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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Classifying Quadrilaterals Vis...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

In this activity, you will visually explore the relationship between several different quadrilaterals and eventually classify them in the form of a 'family tree'. After an introduction to a square and...
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Construct a Parallelogram

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

This applet tests your knowledge of the properties of a parallelogram by having you construct one based on your knowledge.
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Dynamic Geometry Exploration: ...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

These two interactive sketches help students make conjectures about parallelograms. There are 5 questions that go with the first sketch and four with the second. The students change the parallelogra...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows that two straight lines that join equal and parallel straight lines in the same direction are also equal and parallel (the basis for a parallelogram). The guide then examin...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that in a parallelogram, the opposite sides and angles are equal, and the diameter (diagonal) bisects the area. The guide then examines the structure of the proposition. ...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that when two parallelograms share the same base and are in the same parallels, then they are equal. The guide then examines the structure of the proposition. To reset th...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that when two parallelograms have equal bases and are in the same parallels, then they are equal. The guide then examines the structure of the proposition. To reset the a...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that if a parallelogram and triangle share the same base and are in the same parallels, then the parallelogram is twice the area of the triangle. The guide then examines t...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to construct a parallelogram equal to a given triangle in a given rectilinear angle. The guide then examines the structure of the proposition. To reset the applet, pre...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states that complementray parallelograms across the diagonal of a parallelogram are equal. The guide then examines the structure of the proposition. To reset the applet, press "...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to construct a parallelogram equal to a given triangle when given a straight line in a rectilinear angle. The guide then examines the structure of the proposition. To ...
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Euclid's Elements, Book I, Pro...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to construct a parallelogram with a given angle equal to a given quadrilateral. The guide then examines the structure of the proposition. To reset the applet, press "r...
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Euclid's Elements, Book II, De...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

Provides Euclid's definitions for contained and gnomon and then inspects them. To reset the applet, press "r" while your cursor is over the diagram.
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Eyeballing Game

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

The user is given 7 tasks. Each involves using estimation to achieve a geometric task. Two samples are: moving a ray so that it is an angle bisector, and moving a vertex of a quadrilateral so that it ...
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Parallelograms

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

The definition, conditions, and properties of a parallelogram are illustrated and demonstrated by corresponding applets.
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Perimeter of a parallelogram ...

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

A web page and interactive applet show how to compute the perimeter of a parallelogram.
A parallelogram is shown that can be resized by dragging its vertices. As you drag, the perimeter is cont...
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Problem about a Parallelogram

Parallelogram (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates what types of quadrilaterals are formed by the angle bisectors of a parallelogram.
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Tetragon, definition and prope...

Parallelogram (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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