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Alphabet Geometry

Reflections (Math 7) 
Flash 
Tool 

[0]

Being able to visualize the movement of a shape is very important. The Flash movies on this webpage show a letter, or a polygon (after all, block letters are really just polygons), in their origina...
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Area and perimeter of a rectan...

Reflections (Math 7) 
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

Reflections (Math 7) 
Java Applet 
Tool 

[0]

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

Reflections (Math 7) 
Java Applet 
Tool 

[1]

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

Reflections (Math 7) 
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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Identifying Unknown Transforma...

Reflections (Math 7) 
Java Applet 
Tool 

[0]

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

Reflections (Math 7) 
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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Reflections Across Two Mirror ...

Reflections (Math 7) 
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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Transformations  Reflection

Reflections (Math 7) 
Java Applet 
Tool 

[0]

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

Reflections (Math 7) 
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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Visualizing Transformations

Reflections (Math 7) 
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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What Is Meant By Reflectional ...

Reflections (Math 7) 
Java Applet 
Tool 

[0]

This applet illustrates what is meant by reflectional symmetry.
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Wallpaper

Reflections (Math 7) 
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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Funhouse Mirrors

Reflections (Math 7) 
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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Reflection and Rotation Symmet...

Reflections (Math 7) 
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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Transformations

Reflections (Math 7) 
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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GeomeTwee

Reflections (Math 7) 
iPad 
Tool 

[0]

This is the junior version of GeomeTree. It enables the manipulation of geometric trees with two or three branches. Change angle between branches and change common ratio. Selectable themes draw ...
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KaleidoPaint

Reflections (Math 7) 
iPad 
Tool 

[0]

As you draw, KaleidoPaint mirrors your brushstrokes to create a beautiful infinitely repeating design. Features: 
MindTweak

Reflections (Math 7) 
iPad 
Tool 
$ 
[0]

MindTweak is like taking your brain to the gym for a visual thinking workout. Visual thinking refers to the skills involved in reading, interpreting, comprehending, comparing, analyzing, synthesizing ...
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PolygonTrix

Reflections (Math 7) 
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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Constructing a hexagon inscrib...

Regular polygons (Geometry) 
Flash 
Tool 

[0]

An interactive applet and associated web page that provide stepbystep instructions on how to construct
a hexagon inscribed in a circle using only a compass and straightedge.
The method begin...
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Area of a Regular Polygon  Ma...

Regular polygons (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of a regular polygon.
The applet presents a regular polygon where the user can drag any vertex to resize it, and change the ...
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Dividing a Square

Regular polygons (Geometry) 
Java Applet 
Tool 

[0]

This applet demonstrates the problem with the way that the square is rearranged so that the area is changed by the manipulation.
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Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to inscribe an equilateral and equiangular pentagon within a given circle. The guide then examines the structure of the proposition. The To reset the applet, press "r"...
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Euclid's Elements, Book 4, Pro...

Regular polygons (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition shows how to circumscribe an equilateral and equiangular pentagon about a given circle. The guide then examines the structure of the proposition. The To reset the applet, press ...
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