# Web Links

These are resources that can be useful for teachers.

Here are some resources for math teachers and students alike. These may be used for presentations or tools for homework.

## Geogebra

Geogebra is a wonderful program that can be used to visualize different concepts and ideas in math. It is free and extremely versatile.

## Wolfram Demonstrations

Here is a collection of mathematical demonstrations done by wolfram.com.

## PhET

Fun, interactive, research-based simulations of physical phenomena from the PhET project at the University of Colorado.

## Ellipse and Hyperbola Review

An applet that lets you review constructions for parabolas and hyperbolas.

## Graphing the Ellipse and the Hyperbola

An applet that walks a student through graphing ellipses and hyperbolas.

## Graphing the Ellipse and the Hyperbola (not around the origin)

An applet that walks the student through graphing ellipses and hyperbolas that are not centered at the origin.

## Find equation of Ellipse and Hyperbola

This link is an applet that leads students to come up with an equation to go with a graph of an ellipse or hyperbola.

## Conic Sections: The Double Cone

This is a wolfram demonstration showing that a conic section is the intersection of a double cone and an inclined plane.