Geonext 1.51, a dynamic geometry program

Geonext is a Java based program for students and teachers to work geometry at secondary level. It was developed by the Bayreuth University from Germany and the install program is available in 23 languages. To work with Geonext , it is necessary install the Java Runtime Environment. In the Geonext web, you can download the program for Windows, Linux and Mac OS operating systems in two versions: one of them include Java Runtime Environment and the other not include this option.

http://geonext.uni-bayreuth.de/

Working with Geonext

Geonext allows to work with several objects: points, lines, circles, arrows, etc.

In each object menu, you can use different objects. As an example, in “point” menu, which include 10 different options, you can choose a point like a “Slider” point that allows you to do an animation To do it, you must mark this option in the slider point object properties menu. Also, you can work with a long list of utilities (geometric and arithmetic functions, operators, etc) to work with objects.

When you open the properties menu of a object, you can see differents aspects of a object: size, colour, name, etc. With Geonext it is very easy change it.

There are several options to export. You can save your activities in Geonext format, of course, but you can export your activitie to a html document, graphic format (PNG and SVG) or to a slide show. If you decide do a slide show, an it is a interesting option, previously you must do screenshots for each image of the slide show. You can do it at board menu. Also, in this menu, you can change the size of the screen, the axis, insert an image background, etc.

Examples:

If you want use only the html documents offline, you don’t need geonext installed but you must have the geonext.jar archive in the same folder of the html file.

  1. Animation: sinus graphic representation:
  1. Animation: Goniometric circle
  1. Arrows sum:
  1. Slide show:
  1. Graphic export: Golden rectangle