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Topic (Course) 
Technology 
Type 
$? 
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Laboratory

Conic Sections (PreCalculus)+ 
Java Applet 
Tool 

[0]

When the sun moves around in the sky, the shadow cast by a vertical stick moves on the ground. The tip of the shadow traces some kind of curve. The curve depends on the observation point, and it also ...
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Conic Flyer

Conic sections (Algebra II)+ 
Java Applet 
Tool 

[3]

This activity allows the user to manipulate the graphs of the conic sections by changing the constants in their respective equations. The equation and variable values are displayed and change as the u...
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Conic Sections

Conic sections (Algebra II) 
Java Applet 
Tool 

[0]

This applet allows the user to vary parameters in the "generalized" conic equation, ax^2 + bxy + cy^2 + dx + ey + f = 0, as well as displace graphs. Instructions and some discussion included.
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Trace of Shadow

Conic sections (Algebra II)+ 
Java Applet 
Activity 

[0]

When the sun moves around in the sky, the shadow cast by a vertical stick moves on the ground. The tip of the shadow traces some kind of curve. The curve depends on the observation point, and it also ...
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4 Standard Types of Loci

Construction and loci (Geometry) 
Java Applet 
Tool 

[0]

This allows students to explore 4 loci problems with a JavaSketchpad sketch: from 1 fixed point, from 1 fixed line, from 2 fixed points, and from 2 fixed lines. The students can manipulate the drawin...
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Constructing the Perpendicular...

Construction and loci (Geometry)+ 
Java Applet 
Tool 

[0]

Students can learn how to construct the perpendicular bisector of a line segment. The applet asks students a few exploration questions to think about and try to discover through further experimentati...
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Other Types of Loci

Construction and loci (Geometry) 
Java Applet 
Tool 

[0]

This JavaSketchpad sketch allows students to explore 3 loci problems:

Continuity

Continuity (Calculus) 
Java Applet 
Tool 

[0]

Experiment with the epsilondelta definition of continuity: choose epsilon, then try to find an appropriate value for delta.
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Continuity Checker

Continuity (Calculus) 
Java Applet 
Tool 

[0]

Use graphs to investigate the epsilondelta definitions of continuity and uniform continuity.
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Continuous or discontinuous?

Continuity (Calculus) 
Java Applet 
Tool 

[0]

A quiz: determine whether functions based on the sign function are continuous or discontinuous.
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Continuity

Continuity in terms of limits (Calculus) 
Java Applet 
Tool 

[0]

Why isn't the given function continuous at x=1? Investigate its behavior as x approaches 1.
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Continuity: Formal Approach

Continuity in terms of limits (Calculus) 
Java Applet 
Tool 

[0]

A Java applet that presents continuity using limits. Includes a rescalable presentation version with larger fonts.
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Determining Continuity

Continuity in terms of limits (Calculus) 
Java Applet 
Tool 

[0]

Investigate the continuity of selected functions, or enter your own.
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Converting Units and Rates

Converting between units (Math 6)+ 
Java Applet 
Activity 

[0]

This lesson puts some fun into dimensional analysis! I used to teach converting units/rates by demonstrating on the chalkboard (boring!), but my colleague created this lesson that is sure to spark stu...
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Geoboard  Coordinate

Coordinate geometry (Geometry)+ 
Java Applet 
Tool 

[0]

Rectangular geoboard with x and y coordinates.
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The Effects of Outliers

Correlation & Regression (Probability & Statistics) 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the effects of outliers on data sets.
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The Regression Line

Correlation & Regression (Probability & Statistics) 
Java Applet 
Tool 

[0]

Sudents investigate the relationship between a set of data points and a curve used to fit the data points.
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Correlation and the Regression...

Correlation (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also learn about Pearson's correlation coefficient: the measure of the linear associa...
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Dynamic Correlation

Correlation (Probability & Statistics) 
Java Applet 
Tool 

[0]

This applet is simple to use but can provide students with real insight into how to read scatterplots and into how correlation coefficients can be misleading. Once the applet is first loaded, click t...
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The Centroid and the Regressio...

Correlation (Probability & Statistics)+ 
Java Applet 
Tool 

[0]

Students investigate the relationship between a set of data points and a curve used to fit the data points. Users also investigate the properties of the centroid and the regression line.
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Corresponding Angles  Math Op...

Corresponding angles (Geometry) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the corresponding angles
that are formed where a transversal crosses two lines. The applets cycles through the
four possible pai...
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Corresponding and Alternate An...

Corresponding angles (Geometry) 
Java Applet 
Tool 

[0]

This applet illustrates corresponding and alternate angles.
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Bobbie Bear

Counting (PreKindergarten)+ 
Java Applet 
Tool 

[4]

The user can investigate how many different outfits can be made using different colored shirts and pants.
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Displaying Number Patterns

Counting (PreKindergarten)+ 
Java Applet 
Tool 

[1]

In this lesson, students will compare counting sequences and patterns using an online interactive 100's board.
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Hiding Ladybug

Counting (PreKindergarten)+ 
Java Applet 
Tool 

[1]

The threepart ladybug example presents a rich computer environment in which students can use their knowledge of number, measurement, and geometry to solve interesting problems. Planning and visualizi...
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