Tag Archives: GeoGebra Tutorial Series

GeoGebra Tutorial 28 – Animation and Hypocycloids

Posted on April 24, 2011 by Guillermo Bautista | 8 Comments

This is the 28th tutorial in the GeoGebra Intermediate Tutorial Series. In this tutorial, we are going to construct a hypocycloid using GeoGebra. A hypocycloid is a special curve generated by the trace of a fixed point on a small circle that rolls within a larger circle. It is comparable to the cycloid but instead of the circle rolling along a line, it rolls within a circle.

In the tutorial below, menu commands, located in the menu bar, are in green bold text, and submenus are denoted by the > symbol. For example, Options>Labeling> New Points Only means, click the Options menu, choose Labeling from the list, then select New Points Only. The tool texts are colored orange. For example, New Point means the new point tool. Texts typed in the input box are colored blue. Continue reading →

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Posted in GeoGebra, Software Tutorials

Tagged geogebra hypocycloid, geogebra intermediate tutorial series, GeoGebra intersect two objects, geogebra rotate about a point by angle, geogebra slider, GeoGebra Tutorial Series

GeoGebra Essentials 8 – Texts and Variables

Posted on February 9, 2011 by Guillermo Bautista | 8 Comments

This is the seventh tutorial in the GeoGebra Essentials Series. If you are not familiar with GeoGebra, you may want to read the Introduction to GeoGebra post and earlier tutorials. It contains the pre-requisites of this tutorial of the series.

In the tutorial below, menu commands, located in the menu bar, are in brlown bold text, and submenus are denoted by the > symbol. For example, Options>Labeling> New Points Only means, click the Options menu, choose Labeling from the list, then select New Points Only. The tool texts are colored orange. For example, New Point means the new point tool.

In this tutorial, we learn how to use the Text tool of GeoGebra. We will use a previous tutorial on how to use sliders, and then, learn how to the text tool and how concatenate text and variables. The output of this tutorial can be viewed here.

In doing the tutorial, we are going to learn the following:

Understand the difference between text and variables.
Use the text tool to concatenate text and variables. Continue reading →

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Posted in GeoGebra, Software Tutorials

Tagged GeoGebra text and variables, GeoGebra text tool, GeoGebra Tutorial, GeoGebra Tutorial Series

GeoGebra Basic Construction 7 – Rhombus

Posted on January 9, 2011 by Guillermo Bautista | 1 Comment

This is the seventh tutorial in the GeoGebra Basic Construction Series. If you are not familiar with GeoGebra, you may want to read the Introduction to GeoGebra post and prior tutorials in the series. They contain the pre-requisites of this tutorial.

We have already discussed on how to construct a rhombus using a slider. In this tutorial, however, we will construct a rhombus mimicking compass and straightedge construction. In this tutorial, we will not use the slider tool.