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Topic (Course) 
Technology 
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Parametric Functions

Analysis of parametric curves (Calculus) 
Sketchpad 
Tool 

[0]

Students investigate parametric functions in rectangular and polar coordinates. The link to the tool itself is to a zip file that contains both the sketch and a pdf file of the corresponding activi...
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From Secant Lines to Tangent L...

And average rate of change (Calculus) 
Sketchpad 
Activity 

[1]

This activity demonstrates one of the many ways Sketchpad can be used in a calculus or math analysis class. Here, students explore the relationship between the slopes of secant lines to a curve...
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Geometry Activities for Middle...

Angles (Geometry) 
Sketchpad 
Activity 
$ 
[0]

These activities provide students with the opportunity to explore geometric concepts such as symmetry, transformations, and even fractal geometry in a way no other teaching tool can. The dynamic ca...
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Examining Angles in Circles

Angles (Geometry) 
Sketchpad 
Tool 

[0]

Investigate central angles, inscribed angles, angles formed by a tangent and chord, angles formed by intersecting chords, angels formed by two secants, angles formed by a tangent and a secant, and ang...
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Examining Angles in Polygons

Angles of polygons (Math 7) 
Sketchpad 
Activity 

[0]

Help students to discover or reinforce the angle formulas associated with polygons. Includes an activity in PDF format and a prepared sketch.
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Examining Angles in Polygons

Angles of polygons (Math 7) 
Sketchpad 
Tool 

[0]

Help students to discover or reinforce the angle formulas associated with polygons. Includes an activity in PDF format and a prepared sketch.
More: lessons, discussions, ratings, reviews,...

Sketchpad Activities for Intro...

As an instant. rate of change (Calculus) 
Sketchpad 
Activity 

[0]

Sketchpad Activities for Introducing Calculus Topics is a series of five activities designed to introduce students to the basic concepts of calculus. Use these activities near the end of Precalculus c...
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Instantaneous Rate of Change

As an instant. rate of change (Calculus) 
Sketchpad 
Tool 

[1]

Download this Sketchpad file to investigate instantaneous rate using a model of a door operated by a door closer. Students explore the graph of the door's angle as a function of time, and find the lim...
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From Secant Lines to Tangent L...

As the lim. of the diff. quot. (Calculus) 
Sketchpad 
Activity 

[1]

This activity demonstrates one of the many ways Sketchpad can be used in a calculus or math analysis class. Here, students explore the relationship between the slopes of secant lines to a curve...
More: lessons, discussions, ratings, reviews,...

Exploring the Witch of Agnesi

Asymptotic behavior and limits (Calculus) 
Sketchpad 
Activity 

[1]

This activity has students construct the graph of the Witch of Agnesi, and investigate both its asymptotes and inflection points. Fermat studied this function in the seventeenth century.
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Reach the Target

Base ten, place value (Math 5) 
Sketchpad 
Tool 

[1]

Students use their knowledge of place value to identify the locations of unlabeled tick marks along number lines. These locations are exact to units, tenths, and all the way up to hundred thousandths.
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A Continuation of Minimum Peri...

Bisectors (Geometry) 
Sketchpad 
Activity 

[0]

A further guided exploration of triangles inscribed within triangles, using Geometer's Sketchpad.
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A Minimum Perimeter Inscribed ...

Bisectors (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration about triangle inscribed within triangles, and the conditions under which their perimeter is at a minimum, using Geometer's Sketchpad.
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Angle Bisectors in a Triangle

Bisectors (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration of the angle bisectors of a triangle, and the point at which they intersect, using Geometer's Sketchpad.
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Simple Properties of Angle Bis...

Bisectors (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration using Geometer's Sketchpad of some properties of angle bisectors in a triangle.
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A "Possibly New Theorem"

Centers of 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 Continuation of Minimum Peri...

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

A further guided exploration of triangles inscribed within triangles, using Geometer's Sketchpad.
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A Triangle Center

Centers of 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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Angle Bisectors in a Triangle

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

A guided exploration of the angle bisectors of a triangle, and the point at which they intersect, using Geometer's Sketchpad.
More: lessons, discussions, ratings, reviews,...

Exploring Centers of a Triangl...

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

Using problem solving skills, formal geometry, and The Geometer's Sketchpad, students will model and solve two realworld problems by constructing the incenter and circumcenter of triangles. St...
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Exploring Centers of a Triangl...

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

Using problem solving skills, formal geometry, and The Geometer's Sketchpad, students will model and solve a realworld problem by constructing the centroid of a triangle. Students will explore...
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Geometry Quickies #1

Centers of 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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Medians in a Triangle

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

Students discover various properties of the three medians of a triangle. The link to the activity itself is to a zip file that contains a pdf file of the activity.
This is a free sample a...
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Medians in a Triangle

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

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

Centers of triangles (Geometry) 
Sketchpad 
Activity 

[0]

An exploration using Geometer's Sketchpad of the centroid of a triangle, and the way it divides the larger triangle.
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