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Definition of Perpendicular Li...

Intersecting, , & perp. (Math 7) 
Java Applet 
Tool 

[1]

Defines and illustrates perpendicular lines using an "interactive geometry dictionary" format.
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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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Describing Rotations

Rotations (Math 7) 
Java Applet 
Tool 

[0]

Students will think about how to describe rotations of a figure and then have the opportunity to investigate the effect of rotations through different angles and on different shapes.
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DiffusionLimited Aggregation:...

Fractals (Math 7) 
Java Applet 
Tool 

[0]

This simulation shows two different ways fractals can be aggregated, either by a random walk or by special parameters of a straight walk.
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Egg Puzzle Geometric Activity

Geometry in the plane (Math 7) 
Java Applet 
Tool 

[1]

Scramble the egg shell pieces then put them back together.
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Explore Angles of Hexagons

Angles of polygons (Math 7) 
Java Applet 
Tool 

[0]

Drag the vertices of an irregular or regular hexagon, and compare the changes this makes in their angle measures and sums of angle measures.
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Explore Exterior Angles of a P...

Angles of polygons (Math 7) 
Java Applet 
Tool 

[0]

Drag the points on this diagram of a pentagon, and examine what happens to the angle measures and sum of the exterior angles. Java Sketchpad activities, with points for students to observe.
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Explore Interior Angles of Pol...

Angles of polygons (Math 7) 
Java Applet 
Tool 

[0]

Drag the vertices of a quadrilateral or pentagon, and examine what happens to the angle measures and sum of the interior angles. Java Sketchpad activities, with guiding questions for students.
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Exploring Angle Sums Using Hal...

Angles of polygons (Math 7) 
Java Applet 
Tool 

[1]

In this investigation, the user can interactively construct a figure that illustrates the sum of the interior angles in a triangle, quadrilateral or a pentagon.
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Finding What Doesn't Change

Rotations (Math 7) 
Java Applet 
Tool 

[0]

Students will predict the effect of a rotation through a given angle and even the effect of two or more rotations performed one after the other and find angles that leave a figure unchanged.
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Flake Maker

Fractals (Math 7) 
Java Applet 
Tool 

[1]

This activity allows the user to build custom line deformation fractals.
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Floor Tiles

Tessellations (Math 7) 
Java Applet 
Tool 

[1]

This activity allows the user to create a figure that can be tessellated.
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Folding Tape

Triangles (Math 7) 
Java Applet 
Tool 

[1]

This applet demonstrates a problem that tests your knowledge of the properties of different types of triangles. Can you recognize what type of triangle is created?
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Fractal Dimensions

Fractals (Math 7) 
Java Applet 
Tool 

[0]

This activity allows the user to calculate the fractal dimension of a series of regular fractals without access to a calculator.
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Fractal Tree

Fractals (Math 7) 
Java Applet 
Tool 

[0]

This applet allows you to play with a fractal tree.
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Fractals  Iterative

Fractals (Math 7) 
Java Applet 
Tool 

[0]

Generate six different fractals.
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Fractals  Koch and Sierpinski

Fractals (Math 7) 
Java Applet 
Tool 

[0]

Koch's curve is the boundary of the Koch Snowflake obtained by beginning with an equilateral triangle, removing the middle third of each side and replacing it with two sides of a smaller triangle, and...
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Fractals  Mandelbrot and Juli...

Fractals (Math 7) 
Java Applet 
Tool 

[0]

This virtual manipulative allows you to examine and experiment with the infinitely complex structure of Mandlebrot and Julia sets.
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Fractals  Polygon

Fractals (Math 7) 
Java Applet 
Tool 

[0]

Change the parameters to create a new fractal.
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Fractals: An Introductory Less...

Fractals (Math 7) 
Java Applet 
Tool 

[0]

The purpose of this lesson is to learn very simple methods to construct fractals, to do and practice some math, to appreciate the beauty of fractals, and finally to have fun with math. The lesson i...
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Game of Chaos

Fractals (Math 7) 
Java Applet 
Tool 

[1]

The chaos game is simple but very interesting. A single die is needed to play the game, and the vertices of an equilateral triangle. Assign two outcomes of the die to each of the 3 vertices. For ex...
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Geoboard

Geometry in the plane (Math 7) 
Java Applet 
Tool 

[0]

Use geoboard to illustrate area, perimeter, and rational number concepts.
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Geoboard  Circular

Geometry in the plane (Math 7) 
Java Applet 
Tool 

[0]

Use a circular geoboard to illustrate angles and degrees.
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Geoboard  Circular

Geometry in the plane (Math 7) 
Java Applet 
Tool 

[0]

Use circular geoboard to illustrate angles and degrees.
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Height of the Pole

Similarity (Math 7) 
Java Applet 
Tool 

[0]

This applet asks you to find the height of a pole using the information about the two surrounding poles. Look at the similarity of the triangles formed in the picture.
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