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Geogebra


Shodor > TechMath > About the Project > Teacher Resources > Geogebra

Geogebra is a free resource, available for download. There is also a Geogebra Wiki full of hundreds of sample sketches organized by topic for you to explore and use.

The following tutorial videos will assist you in learning the program and how it can be used in education. Note that to view these videos, your browser must have the Quicktime plug-in.

  • Introduction to Geogebra: This quicktime video tutorial explains the basic functions of Geogebra.

    Supplemental Materials: View an accompanying written tutorial as a PDF or as a Word Document or download the finished sketch to view in geogebra.

  • Perpendicular Lines: This quicktime video tutorial shows how two perpendicular lines are related, regardless of their locations and slopes.

    Supplemental Materials: View an accompanying written tutorial as a PDF or as a Word Document or download the finished sketch to view in geogebra.

  • Circles and Angles: This quicktime video tutorial shows the relationship between an inscribed angle and a central angle of the same circle.

    Supplemental Materials: View an accompanying written tutorial as a PDF or as a Word Document or download the finished sketch to view in geogebra.

This Geogebra sketch demonstrates the relationship between circles, right triangles, and trigonometric ratios.

This Geogebra sketch helps students understand the pythagorean relationship of the lengths of sides of a right triangle. This handout in either pdf format or MSWord format helps walk them through the steps to create the sketch.


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