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Topic (Course) 
Technology 
Type 
$? 
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Sierpinski's Triangle

limits (PreCalculus)+ 
Java Applet 
Tool 

[0]

This activity allows the user to step through the process of building the Sierpinski's Triangle.
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Slider Graph

linear (PreCalculus) 
Java Applet 
Tool 

[1]

This applet draws the graph of a function that can include references to the "constants" a, b, and c. The values of these constants can be adjusted using the sliders at the bottom of the applet. The a...
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Slope of a Line

linear (PreCalculus) 
Java Applet 
Tool 

[0]

Watch a line of the form y = ax + b change as a and b change.
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Smithmath Customizable Graphin...

Functions (PreCalculus) 
Java Applet 
Tool 

[0]

Play this customizable game by entering functions that "hit" certain coordinates while avoiding others. Players (or teachers) can add as many of the coordinates to target or avoid, as well as set colo...
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Snail Shell

logarithmic (PreCalculus) 
Java Applet 
Tool 

[0]

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Sum of Geometric Series

geometric (PreCalculus) 
Java Applet 
Tool 

[0]

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Tangent to an Ellipse  Math O...

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the tangent to an ellipse.
An ellipse is shown and a tangent line that touches it at the one point.
The user can drag the tang...
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The Focusdirectrix Definition

Conic Sections (PreCalculus) 
Java Applet 
Tool 

[0]

The CabriJava applet shows a conic with focus F, directrix L passing through a point P. The choice of P determines the eccentricity  as the ratio PQ/PF. You can move F and P to see what shapes ar...
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The Fractal Microscope

limit (PreCalculus)+ 
Java Applet 
Tool 

[0]

A very versatile tool that allows users to explore, with very precise detail, aspects of Mandelbrot, Julia, and other sets iterated on complex numbers.
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The Number e

exponential (PreCalculus) 
Java Applet 
Tool 

[0]

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The Number e(2)

exponential (PreCalculus) 
Java Applet 
Tool 

[0]

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Tight Weave

limit (PreCalculus) 
Java Applet 
Tool 

[2]

Visualize the creation of the Sierpinski Carpet, an iterative geometric pattern that resembles a woven mat.
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Tortoise and Hare Race

limits (PreCalculus)+ 
Java Applet 
Tool 

[0]

Students step through the tortoise and hare race, based on Zeno's paradox, to learn about the multiplication of fractions and about convergence of an infinite sequence of numbers.
Spanish...
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Toy

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive page to demonstrate an ellipse.
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Trigonometric Functions

Functions (PreCalculus) 
Java Applet 
Tool 

[0]

Graphs the sine and cosine functions as a point moves around the unit circle.
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Two Variable Function Pump

Properties of Rational Functions (PreCalculus) 
Java Applet 
Tool 

[0]

This activity allows the user to step through plotting a twovariable function, and to judge whether a given starting point is a prisoner or an escapee, in order to understand complex numbers and Juli...
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Visual Math: Functions & Algeb...

General (PreCalculus) 
Java Applet 
Tool 

[1]

Interactive textbook including over 200 pages of activities and over 80 applets.
Topics include: Linear and Quadratic functions in all forms; linear and quadratic equations and inequalities; equivale...
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WebGrapher

linear (PreCalculus)+ 
Java Applet 
Tool 

[1]

This is a Java graphing applet that can be used online or downloaded. The purpose it to construct dynamic graphs with parameters controlled by user defined sliders that can be saved as web pages or em...
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WebGrapher

General (PreCalculus) 
Java Applet 
Tool 

[0]

This page contains a graphing applet that can be used online or downloaded. The applet can create dynamic graphs with sliders that can be saved as web pages. Users can plot points, functions, parametr...
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eNLVM  Interactive Online Mat...

General (PreCalculus) 
Java Applet 
Tool 

[2]

The eNLVM enhances the applets available through the National Library of Virtual Manipulatives (NLVM). It allows teachers to embed applets in lessons, make up questions to which students can submit an...
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log_{a}M + log_{a
} 
properties (PreCalculus) 
Java Applet 
Tool 

[1]

This applet allows the user to manipulate two values, M and N, until the user can visually establish the rule for the log of a product as the sum of the logs.
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2D/3D Function Plotter

Graphing (PreCalculus) 
JavaScript 
Tool 

[0]

An online (JavaScript) plotting tool for creating 2D and 3D graphs from typed in algebraic expressions. This is version 2.92. See the story for the older version.
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3d ploter

graphs and parameters of these functions (PreCalculus)+ 
JavaScript 
Tool 

[0]

The program uses the HTML5 canvas (HTML5 canvas javascript API) and web workers. Mathematical calculations are performed using the web workers, and the results are drawn on the canvas surface. Applica...
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Adding Apples and Oranges

solving systems of linear equations (PreCalculus)+ 
JavaScript 
Tool 

[0]

Program about mental arithmetic with a prealgebra tool, introducing Gaussian elimination, an algorithm for solving systems of linear equations. Use the video on the page as a tutorial.
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Adding Apples, Oranges, Pears ...

solving systems of linear equations (PreCalculus)+ 
JavaScript 
Tool 

[0]

Use to calculate the value of an apple, an orange, a pear, and a lemon from four purchases. About mental arithmetic, with a prealgebra tool introducing the Gaussian elimination.
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