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Topic (Course) 
Technology 
Type 
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Composition of Transformations...

Transformations and symmetry (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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Tessellations

Tessellations (Geometry) 
Java Applet 
Tool 

[2]

Using this virtual manipulative you may: add a block to the workspace; rotate a block; change the color of a block; remove a block; group blocks; zoom in/out
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Transformations  Rotation

Rotation (Geometry) 
Java Applet 
Tool 

[2]

Dynamically interact with and see the result of a rotation transformation.
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Geometric Transformations

Transformations and symmetry (Geometry) 
Java Applet 
Activity 

[1]

These guided, interactive activities use figures, interactive diagrams, pattern blocks, geoboards, graphs, programmable turtles, and coordinate systems to help students learn what it means to perform ...
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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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Tess

Transformations and symmetry (Geometry) 
Computer 
Tool 

[1]

A shareware program for creating symmetric planar illustrations. With Tess, while you draw you can automatically maintain the symmetry group you have chosen; 11 rosette, all 7 frieze, and all 17 wallp...
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KaleidoTile

Transformations and symmetry (Geometry) 
Computer 
Tool 

[1]

Explore tessellations of the sphere, Euclidean plane, and hyperbolic plane while creating colorful works of art. Decorate your tessellation with your own favorite images, or select images from the ...
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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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Transformations  Composition

Transformations and symmetry (Geometry)+ 
Java Applet 
Tool 

[1]

With this virtual manipulative you can create objects with pattern block pieces and explore the effect of two transformations (Translations, Reflections, or Rotations) in any order. The product of two...
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Congruent Triangles

Transformations and symmetry (Geometry) 
Java Applet 
Tool 

[1]

This page provides three applets that you manipulate in order to discover rotation, translation, and reflection. Then below are descriptions of sideangleside, anglesideangle, and sidesideside (...
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Java Kali

Transformations and symmetry (Geometry) 
Java Applet 
Tool 

[1]

Kali is a program that lets you draw symmetrical patterns based on any of the 17 wallpaper groups, as well as several frieze and rosette groups.
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A Plethora of Polyhedra

Transformations and symmetry (Geometry) 
Java Applet 
Tool 

[4]

This is a free JAVA applet that helps users to study spatial geometry in a dynamic and interactive way. Using it, the user can rotate, zoom out, zoom in and translate a plethora of polyhedra. Moreover...
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Kali

Transformations and symmetry (Geometry) 
Computer 
Tool 

[3]

Kali lets you draw symmetrical patterns based on any of the 17 tiling groups. Kali does not assume the user knows how to read, so even the youngest children can enjoy it.
Older students c...
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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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Enlargement of Figures

Dilation (Geometry) 
Java Applet 
Tool 

[1]

This applet demonstrates how transformation along lines through an origin is used to enlarge a figure.
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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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Pinwheel Tiling

Tessellations (Geometry) 
Java Applet 
Tool 

[1]

Construct and explore an asymmetric tiling of the plane by right triangles.
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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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Floor Tiles

Tessellations (Geometry) 
Java Applet 
Tool 

[1]

This activity allows the user to create a figure that can be tessellated.
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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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Rotations in the Plane

Rotation (Geometry) 
Cabri Jr. 
Activity 

[0]

A rotation around a point is one of three types of rigid transformations. It is a transformation that turns a figure a certain number of degrees about a certain point. This activity explores the prope...
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Dilations in the Plane

Dilation (Geometry) 
Cabri Jr. 
Activity 

[0]

A dilation is a transformation that produces a figure with a different size from that of the original figure. In this activity, students explore the properties of dilations and the relationships betwe...
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Tilings and Symmetry

Transformations and symmetry (Geometry) 
Computer 
Activity 

[0]

A set of questions for small group investigation on tilings and symmetry using the software KaleidoTile.
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