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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

LSRL, Residual Plots, Data Tra...

Scatterplots (Probability & Statistics)+ 
Sketchpad 
Tool 

[0]

Drag seven independent points on a scatterplot, or send them to predetermined arrangements, to enhance understanding of correlation and the implication of changes.
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Similarity

Similarity (Math 4)+ 
Sketchpad 
Tool 

[0]

This activity introduces students to the important ideas of similarity and congruence. Students create their own resizeable logos, which they then use to construct similar shapes. Students can contin...
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RooBooGoo

Symmetry (Math 3)+ 
Sketchpad 
Tool 

[0]

The idea of this activity is to introduce students to some of the basic transformational behaviors. The emphasis is less on properties than on relationships between objects that have been reflected, r...
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Funhouse Mirrors

Symmetry (Math 4)+ 
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...

Symmetry (Math 6)+ 
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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Reflection and Rotation Symmet...

Symmetry (Math 6)+ 
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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Frieze Patterns

Symmetry (Math 7)+ 
Sketchpad 
Tool 

[0]

This is a starter sketch for use with the activity, "Constructing the Seven Frieze Patterns."
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Taylor and Maclaurin Polynomia...

Taylor polynomials (Calculus)+ 
Sketchpad 
Tool 

[0]

This Sketch allows the user to see the first ten Taylor (or Maclaurin) polynomials for a function.
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Exploring and Creating Tessell...

Tessellations (Math 7)+ 
Sketchpad 
Activity 

[0]

This activity has students explore and construct several different types of tessellations. The first part of the activity uses only regular polygons to create pure and semipure tessellations; therefo...
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Exploring Trigonometric Functi...

The Unit Circle (Trigonometry) 
Sketchpad 
Activity 

[1]

This activity has students geometrically construct and investigate the graphs of sine and cosine based upon the lengths of the sides of a reference triangle.
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Reflections over Two Intersect...

Transformations (Math 7)+ 
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

Transformations (Math 7)+ 
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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Transformations

Transformations (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 ...
More: lessons, discussions, ratings, reviews,...

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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Exploring Precalculus with The...

Transformations of functions (Algebra II)+ 
Sketchpad 
Activity 
$ 
[0]

The 56 activities in this collection give students the opportunity to directly experience, through dynamic visualization and manipulation, the topics covered in precalculus. It finishes with a dynami...
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Sums of Sinusoidal Functions

Transforming Graphs (Trigonometry) 
Sketchpad 
Tool 

[0]

Students model wave superposition and wave packets, analyzing sums of sinusoidal waves. The link to the tool itself is to a zip file that contains both the sketch and a pdf file of the correspondin...
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Sums of Sinusoidal Functions

Transforming Graphs (Trigonometry) 
Sketchpad 
Activity 

[0]

Students model wave superposition and wave packets, analyzing sums of sinusoidal waves. The link to the tool itself is to a zip file that contains both the activity in pdf format and the correspond...
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A "Possibly New Theorem"

Triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

This guided exploration, using Geometer's Sketchpad, leads students to notice what John Conway saw in this triangle construction.
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A Min/Max Problem

Triangles (Geometry) 
Sketchpad 
Activity 

[1]

A guided exploration, using Geometer's Sketchpad, of the area of a triangle formed between two fixed rays, using a third ray with a movable end point.
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A New Discovery by Harold Sten...

Triangles (Geometry) 
Sketchpad 
Activity 

[0]

In this guided exploration, students use Geometer's Sketchpad to develop their intuition about triangles and cevians in general, and a proof by Harold Stengel in particular.
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A Triangle Center

Triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

In this guided exploration, students use Geometer's Sketchpad to discover a characteristic of one of the special triangle centers.
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Circumscribed Triangles

Triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

A guided exploration of the relationship between the midpoints of a triangle inscribed in a circle, and the center of the circle, using Geometer's Sketchpad.
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Geometry Quickies #1

Triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

The activity based around medians in this series may generate some questions. Here is a further exploration of the topics it raised, again with reference to Geometer's Sketchpad.
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Inscribed Triangles

Triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

A guided exploration, using Geometer's Sketchpad, of a property of triangles inscribed in a circle.
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Medians in a Triangle

Triangles (Geometry)+ 
Sketchpad 
Activity 

[0]

A guided exploration of medians in a triangle using Geometer's Sketchpad.
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