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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Ellipses: The Congruent Triang...

ellipses (PreCalculus) 
Sketchpad 
Activity 

[0]

A pair of congruent triangles holds the key to this unusual Sketchpad ellipse construction. The link to the activity itself is to a zip file that contains both the activity in pdf format and the co...
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Properties of an Ellipse

ellipses (PreCalculus) 
TINspire 
Activity 

[0]

This activity is intended to provide students with an opportunity to discover a few interesting properties of an ellipse. The ﬁrst property students will explore forms the basis of the deᤙ...
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Conic Sections

ellipses (PreCalculus) 
JavaScript 
Support Material 

[1]

The user reviews the different conic sections with illustrations and equations for each.
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Graphing Calculator

ellipses (PreCalculus)+ 
Calculator 
Tool 

[2]

Meta Calculator is a free online multipurpose calculator that supports the majority of calculator features used in high school or college. Features include

Equation of a Horizontal Ellip...

ellipses (PreCalculus)+ 
Flash 
Tool 

[0]

Flash introduction to finding the equation of an ellipse centered on (0,0) and with its major axis on the xaxis. Students can use this Tab Tutor program to learn about the equation of this ellipse an...
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Equation of a Vertical Ellipse

ellipses (PreCalculus)+ 
Flash 
Tool 

[1]

Flash introduction to finding the equation of an ellipse centered on (0,0) and with its major axis on the yaxis. Students can use this Tab Tutor program to learn about the equation of this ellipse an...
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Area of an Ellipse  Math Open...

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the area of an ellipse.
The major and minor axes can be dragged and the area is continuously recalculated.
The ellipse has a g...
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Ellipse Game

foci (PreCalculus) 
Java Applet 
Tool 

[1]

Try to click on one of the foci of the ellipse; feedback is given if you get closer/farther away.
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Ellipse definition and propert...

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the definition and properties of an ellipse.
The applet has a draggable point that shows that the sum of the distances to the foci is a co...
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Ellipse major and minor axes ...

major / minor axes (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the major and minor axes of an ellipse.
The applet has an ellipse whose major and minor axis endpoints can be dragged. As they are dragge...
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Elliptical Gear

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

The workings of an ellipse as a gear.
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Elliptical Pool Table

foci (PreCalculus) 
Java Applet 
Tool 

[1]

Choose "New Toys" from the menu bar when it has loaded (be patient); then choose "Elliptical Pool Table" one that in turn is loaded. This applet simulates pool on a table where the "pocket" is the rig...
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Foci of an ellipse  Math Open...

foci (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the definition and properties of the focus points (foci) of an ellipse.
The applet has an ellipse whose major and minor axes can be dragge...
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Optical Properties of Elliptic...

ellipses (PreCalculus)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that demonstrate the optical properties of elliptical mirrors.
Rays that pass through one focus of an ellipse always are reflected so they pass thro...
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Reflective Properties of Ellip...

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

Interactive page to demonstrate the reflective properties of ellipses.
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Semimajor and Semiminor axes...

ellipses (PreCalculus)+ 
Java Applet 
Tool 

[0]

An interactive applet and associated web page that show the semimajor and semiminor axes of an ellipse.
The applet has an ellipse whose major and minor axis endpoints can be dragged.
As they...
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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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Toy

ellipses (PreCalculus) 
Java Applet 
Tool 

[0]

An interactive page to demonstrate an ellipse.
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Conic_Connections

vertices (PreCalculus)+ 
Sketchpad 
Tool 

[1]

The user manipulates a plane and doublenapped cone to generate graphs and equations of conic sections. Eccentricity, foci, and directrices are also illustrated in both 2 and 3D.
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Ellipses: The Congruent Triang...

ellipses (PreCalculus) 
Sketchpad 
Tool 

[0]

A pair of congruent triangles holds the key to this unusual Sketchpad ellipse construction. The link to the tool itself is to a zip file that contains both the sketch and a pdf file of the correspo...
More: lessons, discussions, ratings, reviews,...

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