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Topic (Course) 
Technology 
Type 
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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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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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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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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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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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Composing Transformations

Reflection (Geometry) 
Java Applet 
Tool 

[1]

The users are challenged to compose equivalent transformations in two different ways.
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Wallpaper

Reflection (Geometry) 
PowerPoint 
Tool 

[1]

This PowerPoint file displays questions about symmetry; answers guide the user to one of 17 symmetry classifications for tessellations or wallpaper patterns. Support materials include handson tessel...
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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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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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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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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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Transformations Lab

Reflection (Geometry) 
Sketchpad 
Activity 

[0]

This activity involves students using Sketchpad to explore reflections, translations, glide reflections, and rotations; it includes reference to a java applet as well.
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Symmetry

Reflection (Geometry) 
Computer 
Support Material 

[0]

Provides illustrations and a definition of symmetry.
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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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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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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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What Is Meant By Reflectional ...

Reflection (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates what is meant by reflectional symmetry.
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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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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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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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Visualizing Transformations

Reflection (Geometry) 
Java Applet 
Tool 

[0]

The user can choose a transformation and apply it to a shape to observe the resulting image.
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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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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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Transformations on the Coordin...

Reflection (Geometry) 
Java Applet 
Tool 

[0]

Practice transformations (reflection, rotation, and translation). Then try your hand at the game  figure out how to transform the shape to match the target shape. Reflections are over the x and y...
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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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