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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Area and perimeter of a rectan...

Reflection (Geometry) 
Flash 
Tool 

[1]

A web page and interactive (Flash) applet demonstrating the reflection transformation. Drag the vertices of a triangle and reposition the line of reflection. The reflected image of the triangl...
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Composing Reflections

Reflection (Geometry) 
Java Applet 
Tool 

[0]

Users can examine the result of reflecting a shape successively through two different lines.
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Composing Transformations

Reflection (Geometry) 
Java Applet 
Tool 

[1]

The users are challenged to compose equivalent transformations in two different ways.
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Composition of Transformations...

Reflection (Geometry) 
Sketchpad 
Activity 

[2]

This "lab" contains seven "experiments" in which students perform different geometric transformations on an object to determine whether, or under what conditions, the transformations commute.
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Describing Reflections

Reflection (Geometry) 
Java Applet 
Tool 

[0]

Interacting with the JavaSketchpad applets helps the user understand how reflections work and what happens when two or more reflections are applied one after the other.
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Dueling Pinwheels

Reflection (Geometry) 
Sketchpad 
Activity 

[0]

This contains construction directions for rotations, translation, and reflection, with questions to explore and a demonstration sketch to download at an introductory Sketchpad level.
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Exploring the Definition of Re...

Reflection (Geometry) 
Computer 
Lesson Plan 

[1]

This lesson provides directions for teaching the definition of reflection using Geometer's Sketchpad.
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Funhouse Mirrors

Reflection (Geometry) 
Sketchpad 
Tool 

[0]

A Geometer's Sketchpad tool for constructing distorted images that can be viewed undistorted with a cylindrical mirror. The file contains tabbed pages with several images, a grid for students to draw...
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GeomeTree

Reflection (Geometry) 
iPad 
Tool 
$ 
[0]

GeomeTree enables the manipulation of geometric trees with 2 to 7 branches via multitouch gestures. Change angle between branches and change common ratio. Selectable themes draw trees with un...
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Great Stella

Reflection (Geometry) 
Computer 
Tool 
$ 
[0]

Great Stella allows you to view 3D polyhedra. Hundreds provided (Platonic, Archimedean, KeplerPoinsot & all other uniform polyhedra, Johnson Solids, Stewart toroids, compounds, geodesics, etc.). R...
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Identifying Unknown Transforma...

Reflection (Geometry) 
Java Applet 
Tool 

[0]

The user is challenged to identify the transformation that has been used.
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PolygonFlux

Reflection (Geometry) 
iPad 
Tool 
$ 
[0]

PolygonFlux lets you experience the flow of energy inside a polygon. In simplest terms, it traces the path of a point bouncing around inside a polygon of your choice, generating a pretty pattern.
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PolygonTrix

Reflection (Geometry) 
iPad 
Tool 
$ 
[0]

Every school child has played with a pool ball on a rectangular table or a carom puck on a square board. What would change if the table were a triangle or a pentagon? PolygonTrix is a game that s...
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Reflection Postulates

Reflection (Geometry) 
Computer 
Lesson Plan 

[2]

This lesson provides directions for teaching the reflection postulates using Geometer's Sketchpad.
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Reflection and Rotation Symmet...

Reflection (Geometry) 
Sketchpad 
Activity 

[2]

Students test a variety of figures for symmetry by actually constructing reflections and rotations. The link to the tool itself is to a zip file that contains both the activity in pdf format and t...
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Reflection and Rotation Symmet...

Reflection (Geometry) 
Sketchpad 
Tool 

[0]

Students test a variety of figures for symmetry by actually constructing reflections and rotations. The link to the tool itself is to a zip file that contains both the sketch and a pdf file of the...
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Reflections Across Two Mirror ...

Reflection (Geometry) 
Java Applet 
Tool 

[0]

Users will learn what happens when a design is reflected twice across two different mirror lines with this interactive activity.
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Reflections over Two Intersect...

Reflection (Geometry) 
Sketchpad 
Activity 

[0]

Students explore what happens when they reflect a figure over a line and then reflect the image over a second line that intersects the first. The link to the activity itself is to a zip file that c...
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Relationships Between Reflecti...

Reflection (Geometry) 
Java Applet 
Activity 

[1]

Users will learn the properties of designs that have bilateral symmetry in this activity.
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Small Stella

Reflection (Geometry) 
Computer 
Tool 
$ 
[0]

Small Stella is the ideal entrylevel polyhedron program for schools or anyone interested in geometry, with hundreds of polyhedra provided. Print out the nets required to build your own paper model...
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Stella4D

Reflection (Geometry) 
Computer 
Tool 
$ 
[0]

Stella4D allows you to create and view 3D polyhedra and 4D polytopes. Hundreds provided (Platonic, Archimedean, KeplerPoinsot & all other uniform polyhedra, Johnson Solids, Stewart toroids, compo...
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Symmetry

Reflection (Geometry) 
Computer 
Support Material 

[0]

Provides illustrations and a definition of symmetry.
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Transformations

Reflection (Geometry) 
Sketchpad 
Activity 

[1]

Investigate reflections, translations, glide reflections, dilations, rotations of 90, 180, 270 or any degree, and composition of reflections. Animations included on several pages. Usable at various ...
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Transformations

Reflection (Geometry) 
Sketchpad 
Tool 

[0]

Investigate reflections, translations, glide reflections, dilations, rotations of 90, 180, 270 or any degree, and composition of reflections. Animations included on several pages. Usable at various ...
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Transformations  Reflection

Reflection (Geometry) 
Java Applet 
Tool 

[0]

Dynamically interact with and see the result of a reflection transformation.
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