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Topic (Course) 
Technology 
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Parallel Lines and Transversal...

Perpendicular and parallel lines (Geometry) 
PowerPoint 
Activity 

[0]

This PowerPoint show includes definitions, graphics, sound, and links to help introduce parallel lines and transversals. There is a student worksheet that accompanies the lesson to help the students s...
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Parallel Lines and Transversal...

Perpendicular and parallel lines (Geometry) 
PowerPoint 
Activity 

[0]

Student worksheet to accompany Parallel Lines and Transversals PowerPoint document (see resource connection below)
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Angles Formed by Parallel Line...

Perpendicular and parallel lines (Geometry) 
Sketchpad 
Activity 

[0]

Students identify and measure corresponding angles, alternate interior angles, and alternate exterior angles, and determine which angles are congruent to each other. The link to the activity itself...
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Geometry Activities for Middle...

Perpendicular and parallel lines (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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Properties of Parallel Lines

Parallel (Geometry)+ 
Sketchpad 
Activity 

[2]

Students discover relationships among the angles formed when parallel lines are intersected by a transversal. The link to the activity itself is to a zip file that contains a pdf file of the activi...
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Perpendicular Slopes

Perpendicular (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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Interaction of Angles, Paralle...

Perpendicular and parallel lines (Geometry) 
Computer 
Lesson Plan 

[0]

This lesson provides directions for teaching the interaction of angles, parallel lines, and perpendicular lines using Geometer's Sketchpad.
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Angles

Parallel (Geometry)+ 
Java Applet 
Lesson Plan 

[1]

The following lesson is designed to introduce students to acute, obtuse, and right angles. It is also designed to introduce students to vertical angles, adjacent angles, alternate interior angles and ...
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Angle Bisectors and Perpendicu...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to use the laws of logarithms discussed earlier for simplifying logarithmic equations and apply these for solving word problems.
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Angles and Parallel Lines (Ams...

Parallel (Geometry)+ 
Flash 
Support Material 

[0]

This minilesson explains parallel lines and interior, exterior, alternate interior and exterior, and corresponding angles.
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Constructing Parallel and Perp...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to construct parallel and perpendicular lines, using earlier lessons about the basics of compass and straightedge construction.
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Identifying Special Angle Pair...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains how to identify special angle pairs, i.e. angles formed when a transversal cuts (or intersects) parallel lines.
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Line Segment, Ray, Parallel Li...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains the concepts of ray, line segment, parallel and perpendicular lines and their important properties and usages in geometry.
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Parallel Lines and Transversal...

Parallel (Geometry)+ 
Flash 
Support Material 

[0]

This minilesson explains the definition, basics and uses of parallel lines and transversals in geometry.
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Relationships Among Special An...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains more about basic geometric figures and classifying angles according to their measures, and about more complex geometric relationships among them.
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The Slopes of Parallel and Per...

Perpendicular and parallel lines (Geometry) 
Flash 
Support Material 

[0]

This minilesson explains and shows how to find the slope or gradient of parallel and perpendicular lines.
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Angles Discussion

Parallel (Geometry)+ 
Java Applet 
Support Material 

[0]

A dialogue between a student and a mentor about angles.
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Geometria

Perpendicular and parallel lines (Geometry) 
Computer 
Tool 

[0]

Geometria is free (GPL) crossplatform software based on a tworole (teacher, student) model. The teacher creates a problem, provides it with an answer and saves the problem in a file. The student ope...
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IGD: Dropping a Perpendicular ...

Perpendicular (Geometry) 
Computer 
Tool 

[0]

Constructing a line perpendicular to a given line and through a point not on the line is one of the most important constructions in geometry. This process is known as dropping a perpendicular, because...
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Parallel Lines Cut by a Transv...

Perpendicular and parallel lines (Geometry)+ 
Flash 
Tool 

[0]

This movie has sound and graphics. It shows the relationship of the angles formed by a pair of parallel lines and a transversal. Also includes an application problem. Takes 5 minutes to view.
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Perpendicular lines in coordin...

Perpendicular (Geometry) 
Flash 
Tool 

[0]

An interactive applet and associated web page that show how to determine of one line is perpendicular to another in coordinate geometry.
The principle used is that if two lines a re perpendicula...
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Alternate Exterior Angles  Ma...

Alternate exterior angles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the alternate
exterior angles that are formed where a transversal crosses two lines. The applets shows the
two possible pairs of ...
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Alternate Interior Angles  M...

Alternate interior angles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the alternate
interior angles that are formed where a transversal crosses two lines. The applets shows the
two possible pairs of ...
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Angles

Parallel (Geometry)+ 
Java Applet 
Tool 

[0]

This activity allows the user to practice important angle vocabulary.
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Angles and Parallel Lines

Perpendicular and parallel lines (Geometry) 
Java Applet 
Tool 

[1]

Three applets that demonstrate the concepts of vertical angles, corresponding angles, alternate angles, transversal lines, and how parallel lines effect these relations.
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