---
title: 'Geogebra Dynamic Conics for PreCalc'
url: 'https://blog.recursiveprocess.com/2011/11/02/geogebra-dynamic-conics-for-precalc'
markdown: 'https://blog.recursiveprocess.com/2011/11/02/geogebra-dynamic-conics-for-precalc.md'
date: '2011-11-02'
description: 'For Precalc H, I created a series of dynamic Geogebra files, where the teacher or student uses sliders to control the center and the a (and b) values of the conic. The file calculates and graphs the appropriate conic, foci, directrices, etc. All the files can be downloaded here. Sample: Or you can…'
taxonomy:
  category:
    - blog
---

# Geogebra Dynamic Conics for PreCalc

### [Geogebra Dynamic Conics for PreCalc](https://blog.recursiveprocess.com/2011/11/02/geogebra-dynamic-conics-for-precalc)

   November 2, 2011, 12:00 am  

For Precalc H, I created a series of dynamic Geogebra files, where the teacher or student uses sliders to control the center and the a (and b) values of the conic. The file calculates and graphs the appropriate conic, foci, directrices, etc.

[All the files can be downloaded here.](http://dl.dropbox.com/u/3646828/Conics.zip)

Sample:

Or you can go to geogebratube to run them in your web browser.

## [Circle](http://www.geogebratube.org/material/show/id/1339)

## [Ellipse (wide)](http://www.geogebratube.org/material/show/id/997) and [Ellipse (narrow)](http://www.geogebratube.org/material/show/id/998)

## [Hyperbola (Left and Right)](http://www.geogebratube.org/material/show/id/1232) and [Hyperbola (Up and Down)](http://www.geogebratube.org/material/show/id/1233)

## [Parabola (Function)](http://www.geogebratube.org/material/show/id/1322) and [Parabola (Not a function)](http://www.geogebratube.org/material/show/id/1323)

Cheers.

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