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Technology 
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VisualTrig: Triangle or Rectan...

Pythagorean theorem (Geometry) 
JavaScript 
Tool 

[2]

Online Desktop and PocketPC visual trigonometric calculators.
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Pythagorean Theorem

Pythagorean theorem (Geometry) 
Java Applet 
Support Material 

[1]

Read explanations of fortythree proofs of the Pythagorean theorem. Some of the proofs have additional pages with applets to explore.
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Pythagorean Theorem

Pythagorean theorem (Geometry) 
Java Applet 
Tool 

[3]

This virtual manipulative allows you to walk through a visual proof of the Pythagorean theorem. Before beginning the proof, recall that the pythagorean theorem is: c^2 = a^2 + b^2
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Pythagorean Theorem

Pythagorean theorem (Geometry) 
Flash 
Tool 

[1]

Discover how the Pythagorean formula describes the relationships between the lengths of the legs and hypotenuse of a right triangle. Teachers and students can use this audionarrated lesson, interact...
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Pythagoras' Theorem

Pythagorean theorem (Geometry) 
Flash 
Tool 

[1]

Test yourself on the Pythagorean Theorem and its applications in these ten questions.
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Pythagoras graphical proof  M...

Pythagorean theorem (Geometry) 
Java Applet 
Tool 

[1]

An interactive applet and associated web page that demonstrates a graphical proof of Pythagoras' Theorem.
The applet shows a right triangle that is replicated and then moved around to demonstra...
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Pythagorean Theorem Lab

Pythagorean theorem (Geometry) 
Computer 
Activity 

[1]

Students do a "web excursion" exploring various proofs and the history of the Pythagorean Theorem.
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Pythagorean Explorer

Pythagorean theorem (Geometry) 
Java Applet 
Tool 

[1]

This applet allows the viewer to calculate the length of one side of a triangle using the Pythagorean Theorem.
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Pythagorean Theorem

Pythagorean theorem (Geometry) 
Computer 
Support Material 

[1]

Discussion of exposition, history, and proof of Pythagorean Theorem
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Visual Demonstration of the Py...

Pythagorean theorem (Geometry) 
Sketchpad 
Activity 

[0]

Students do a visual demonstration of the Pythagorean theorem based on Euclid’s proof. By shearing the squares on the sides of a right triangle, they create congruent shapes without changing...
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Pythagoras Plugged In: Proofs ...

Pythagorean theorem (Geometry) 
Sketchpad 
Activity 
$ 
[0]

This book guides students through a variety of proofs and applications of the Pythagorean theorem. By constructing and dynamically manipulating figures, students visualize the theorem and gain insight...
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A Right Triangle with Squares

Pythagorean theorem (Geometry) 
Sketchpad 
Activity 

[0]

Students make a square tool and use the tool to investigate the Pythagorean Theorem and its converse. The link to the activity itself is to a zip file that contains the activity in pdf format. ...
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Leonardo da Vinci's Proof

Pythagorean theorem (Geometry) 
Sketchpad 
Activity 

[0]

Students use reflection and rotation to build a sketch that demonstrates a famous proof by Leonardo. The link to the activity itself is to a zip file that contains both the activity in pdf format ...
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A Dynamic Proof

Pythagorean theorem (Geometry) 
Sketchpad 
Activity 

[0]

Students create a sketch in which a dramatic animation shows how the sum of the areas of two squares is equal to the area of the third square. The link to the activity itself is to a zip file tha...
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The Pythagorean Theorem

Pythagorean theorem (Geometry) 
Sketchpad 
Activity 

[0]

Students create both a visual and formal proof of the Pythagorean theorem, as well as view four additional geometric demonstrations of the theorem. These demonstrations are based on proofs by Bhaskara...
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The Pythagorean Theoremand M...

Pythagorean theorem (Geometry) 
TINspire 
Activity 

[0]

In this activity, students construct a triangle and ﬁnd all angle and side measures. They practice dragging the vertices to form certain types of triangles, and then they conﬁrm the Pyth...
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The Beach Race

Pythagorean theorem (Geometry) 
TINspire 
Activity 

[0]

In a beach race, contestants must swim to a point along the beach and then run to reach the ﬁnish line. Where should I aim to land on the beach so as to minimize my total time for the race? Stu...
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Perpendicular Slopes

Pythagorean theorem (Geometry) 
TINspire 
Activity 

[0]

In this activity, students investigate the “negative reciprocal” relationship between the slopes of perpendicular lines. The final phase of the activity is appropriate for more advanced students as th...
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The Pythagorean Theorem

Pythagorean theorem (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson provides directions for teaching about the Pythagorean Theorem using Geometer's Sketchpad.
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Pythagorean Theorem

Pythagorean theorem (Geometry) 
Computer 
Lesson Plan 

[0]

Learn how the Pythagorean Theorem works and how to apply it.
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Pythagorean Theorem (Getting S...

Pythagorean theorem (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the Pythagorean Theorem and how to apply the theorem and its corollaries to solve real life problems.
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Pythagorean Theorem Converse (...

Pythagorean theorem (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the converse of the Pythagorean Theorem and how to use it to prove a triangle is a right triangle.
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Distance Formula (Geometry)

Pythagorean theorem (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to use the Pythagorean Theorem to find the distance between two points in the plane.
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The Pythagorean Theorem (Amsco...

Pythagorean theorem (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains right angle triangles and the Pythagorean theorem.
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Touch Pythagoras

Pythagorean theorem (Geometry) 
Android 
Tool 

[0]

With this app the Pythagorean Theorem is interactive. You can change the lengths of the legs (dragging), the length of the hypotenuse with two fingers and zoom (pinch zoom) and rotate the figure (dra...
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