GeoGebra is a free dynamic mathematics software that is capable of linking concepts in algebra, geometry, calculus, and statistics. It can construct mathematical objects such as points, lines, vectors, and explore their properties. It can also plot graphs and perform mathematical computations.

GeoGebra runs in Java and can be used in multiple platforms including Windows, Mac, and Linux operating systems. Click here to know more about GeoGebra and click here to download it.

The first figure shows the parts of the GeoGebra window: Menu bar, Toolbar, Algebra View, Graphics View and Input Bar.

Hands-On

The window below is the actual GeoGebra window. Explore the interface by following the instructions.

To construct a point, click the New Point tool (second tool from the left) and click on the Graphics View.

To drag the point, click the Move tool (first tool from the left ) and drag the point. Observe the Algebra View as you drag the point.

Use the View menu to hide/show the Algebra view, Graphics View, and Grid lines.

To move the Graphics view, click the Move Graphics View (first tool from the right) and drag the Graphics view.

Click the triangle located at the bottom-right of the tools to display the hidden tools. Explore.

Tips and Tricks

Hover your mouse pointer over a tool to display the tool tip containing its name and the instructions on how to use it.

Use the arrow buttons at the upper right of the window to undo or redo GeoGebra commands.

Use the Help menu to learn other tools or to go the online GeoGebra tutorials.

This post is the first of “Teach Yourself GeoGebra” series. The skills learned in this post are needed in the next tutorial.

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