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Technology 
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A Fractals Unit for Elementary...

Fractals (Math 4) 
Computer 
Activity 

[1]

A teaching unit on fractals for students and teachers in grades 4 to 8, that adults are free to enjoy, designed to introduce students to fractals and the underlying mathematics. It focuses on fractals...
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Instant Solution of a Maze

Geometry in the plane (Math 4) 
Computer 
Activity 

[2]

A quick way to find solutions to complicated mazes. The author writes: "While doing a maze activity with a group of elementary school homeschoolers, I started exploring mazes as systems of walls rathe...
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Using Kali

Symmetry (Math 4) 
Computer 
Activity 

[2]

An exercise (in English and Spanish) in using an interactive 2D Euclidean symmetry pattern editor. This activity was originally written as one of the stations in Frisbie Middle School's Multicultural ...
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Fractals: Koch Snowflake

Fractals (Math 4) 
Java Applet 
Activity 

[1]

This activity shows how to make the Koch Snowflake fractal handson, stepbystep by using triangle grid paper which is provided.
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Fractals: Sierpinski Triangle

Fractals (Math 4) 
Java Applet 
Activity 

[1]

This activity shows how to make a Sierpinski Triangle handson, stepbystep by using triangle grid paper which is provided.
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Regular Tessellations

Symmetry (Math 4)+ 
Java Applet 
Activity 

[1]

Students understand why equilateral triangles, squares, and regular hexagons tessellate regularly in the Euclidean plane.
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Types of Triangles

Classify geometric objects (Math 4)+ 
Java Applet 
Activity 

[2]

This activity is available in Word, PDF, or HTML format and at two different levels (an introduction to types of triangles, and a more advanced version). Students use a GSP sketch or interactive web ...
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Area of an Equilateral Triangl...

Geometry in the plane (Math 4) 
TI73 Explorer 
Activity 

[0]

Stepbystep directions on how to use the GeoBoard App to construct objects of various sizes on circular or square boards.
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Venn Diagram Lesson

Geometry in the plane (Math 4) 
Calculator 
Lesson Plan 

[0]

Students learn how to classify items and numbers on Venn Diagrams using computer applets.
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Investigating Tessellations Us...

Symmetry (Math 4)+ 
Java Applet 
Lesson Plan 

[0]

Students create tessellations using triangles, squares, trapezoids, hexagons, and parallelograms.
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Polygons

Classify geometric objects (Math 4) 
Java Applet 
Lesson Plan 

[0]

This lesson has online resources that teach basic concepts about polygons.
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Regular Tessellations

Symmetry (Math 4)+ 
Java Applet 
Lesson Plan 

[0]

A middle school lesson to help students understand why equilateral triangles, squares, and regular hexagons tessellate regularly in the Euclidean plane. In addition to alignment to NCTM Standards and ...
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PolygonBased Words

Classify geometric objects (Math 4) 
Computer 
Support Material 

[0]

Provides interesting words that contain the names of polygons.
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The Names of Polygons

Classify geometric objects (Math 4) 
Computer 
Support Material 

[0]

Provides the names of the different polygons.
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Parallelograms Dialogue

Quadrilateral properties (Math 4) 
Java Applet 
Support Material 

[0]

Introduces students to parallelograms and rombuses and defines the characteristics necessary to determine each shape.
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Quadrilaterals Dialogue

Quadrilateral properties (Math 4) 
Java Applet 
Support Material 

[0]

Introduces students to quadrilaterals and defines the characteristics of the polygon.
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Rectangles Dialogue

Classify geometric objects (Math 4)+ 
Java Applet 
Support Material 

[0]

Introduces students to rectangles and squares and defines the characteristics necessary to determine each shape.
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Translations, Reflections, and...

Transformations (Math 4) 
Java Applet 
Support Material 

[1]

Dialogue between a mentor and a student about translations, reflections, and rotations.
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Trapezoids Dialogue

Classify geometric objects (Math 4)+ 
Java Applet 
Support Material 

[0]

Introduces students to trapezoids and isosceles trapezoids and defines the characteristics necessary to determine each shape.
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What are Tessellations?

Tessellations (Math 4) 
Java Applet 
Support Material 

[0]

Examines the mathematical properties of tessellations.
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Graph Paper/Dot Paper/Lined Pa...

Geometry in the plane (Math 4) 
Presentation software 
Support Material 

[1]

This website provides free, PDFformat graph paper, dot paper, lined paper, and polar graph paper.
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Touch Pythagoras

Triangles (Math 4) 
Android 
Tool 

[0]

With this app the Pythagorean Theorem is interactive. You can change the lengths of the legs (dragging), the length of the hypotenuse with two fingers and zoom (pinch zoom) and rotate the figure (dra...
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Fractal Tool

Fractals (Math 4) 
Computer 
Tool 

[0]

Play with shapes that grow, shrink, and change over several stages. Explore selfsimilarity and patterns in fractal measurements. Can you see how these shapes are fractals?
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Geometry Toolkit

Geometry in the plane (Math 4) 
Computer 
Tool 
$ 
[0]

Use the discovery approach to mathematics while your students explore six different simulated geometry environments. Builtin lessons provide individualized support allowing students to progress while...
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Kali

Symmetry (Math 4)+ 
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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