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====Tool bar introduction ====
====Tool bar introduction ====
In this section you will be introduced to the basic constructions available on the tool bar.
In this section you will be introduced to the basic constructions available on the tool bar.
<gallery mode="packed" heights="250px" caption="Introduction to the tool bar"> 2
<gallery mode="packed" heights="250px" caption="Introduction to the tool bar">
File:Geogebra3.png|Moving objects
File:Geogebra3.png|Moving objects
File:Geogebra4.png|Moving by rotating around a point
File:Geogebra4.png|Moving by rotating around a point
File:Geogebra 6 Construction a parallel line.png|Drawing parallel lines
File:Geogebra 6 Construction a parallel line.png|Drawing parallel lines
</gallery>
</gallery>
The Geogebra tool bar is very versatile - the construction follows the processes that we would normally follow in paper and pen construction. Some six important categories in the tool bar are discussed below:
The Geogebra tool bar is very versatile - the construction follows the processes that we would normally follow in paper and pen construction. Some six important categories in the tool bar are discussed below:
#Moving objects:Geogebra allows you to move object constructed freely by dragging the object. You can also select an object and move it by rotating aroung a point.
#Moving objects:Geogebra allows you to move object constructed freely by dragging the object. You can also select an object and move it by rotating aroung a point.
#Drawing lines: The menu for lines and segments also allows multiple constructions - segments,lines, rays and vectors
#Drawing lines: The menu for lines and segments also allows multiple constructions - segments,lines, rays and vectors
#Drawing multiple lines: Multiple lines can also be drawn in Geogebra. Parallel lines, perpendicular lines, angle bisectors and perpendicular bisectors can be drawn.
#Drawing multiple lines: Multiple lines can also be drawn in Geogebra. Parallel lines, perpendicular lines, angle bisectors and perpendicular bisectors can be drawn.
=====Saving and exporting=====
#You can save Geogebra file from the File menu.
#You can also export the Geogebra file as an image (.png format) or as an animated graphic (.gif format).
#If you export the Geogebra file as html you can publish it on the repository for Geogebra files.
====Measuring an angle====
====Measuring an angle====
====Typing text in a textbox====
====Typing text in a textbox====
<gallery mode="packed" heights="250px" caption="Using the text box">
<gallery mode="packed" heights="250px" caption="Using the text box">
File:Geogebra_textbox.png
File:Geogebra_textbox.png
File:Showing symbols in textbox.png
File:Showing symbols in textbox.png
</gallery>
</gallery>
The textbox is used to write descriptive text in a Geogebra file. The first image shows you the option in the tool bar which will be used to insert a text box. After selecting the text box option, you can click anywhere on the graphics pad to insert the text box. The next two images show how symbols and prior defined objects can be inserted. For example, in the third image, the "α" object is a prior defined object - the angle measure. This feature allows the text box to dynamically capture the changes in the Geogebra file.
The textbox is used to write descriptive text in a Geogebra file. The first image shows you the option in the tool bar which will be used to insert a text box. After selecting the text box option, you can click anywhere on the graphics pad to insert the text box. The next two images show how symbols and prior defined objects can be inserted. For example, in the third image, the "α" object is a prior defined object - the angle measure. This feature allows the text box to dynamically capture the changes in the Geogebra file.
====Using the tool bar - slider====
====Defining a slider====
One of the powerful features of Geogebra is the dynamic feature. You can vary parameters of the shape that you want to animate and see how properties change.
One of the powerful features of Geogebra is the dynamic feature. You can vary parameters of the shape that you want to animate and see how properties change.
<gallery mode="packed" heights="250px" caption="Using the slider">
<gallery mode="packed" heights="250px" caption="Using the slider">
#The first image shows you how to define a slider. In the slider dialog box, you can define the name, the range of values for the parameter and the increment to be used. You can either define a slider of sides or angles.
#The first image shows you how to define a slider. In the slider dialog box, you can define the name, the range of values for the parameter and the increment to be used. You can either define a slider of sides or angles.
#The second image shows the construction of a polygon with a slider defined for the number of vertices.
#The second image shows the construction of a polygon with a slider defined for the number of vertices.
#In the file you have worked with, a slider has been created for angles.
#When you define a slider, you can also set up animation on - this keeps changing the value of the parameter and keeps changing the sketch
#The 3D window allows you to visualize the geometry along 3-axes. You can rotate the graphics view using the same icon that you used for the Move graphics view. You can independently work on the 2D and 3D windows and the construction on one window will get reflected in the other.
#The 3D window allows you to construct solid figures by extruding from a 2-dimensional shapes. Other features include construction of a plane, rotation, reflection., etc. The slider defined in the 2D window will help animate in the 3D window also.
====Advanced features====
====Defining a checkbox====
A checkbox is a useful way to control the sequence of display of objects in a Geogebra file and hence can be an useful way to structure a lesson.
<gallery mode="packed" heights="250px" caption="Using the check box">
File:Geogebra checkbox.png
File:Selecting object linked to checkbox.png </gallery>
The first image above shows where the check box option is located on the menu. Once the check box is selected, click anywhere on the graphics view to create a check box. The display of any created object can be allowed or not allowed by linking it to the checkbox; this is a 1:1 linkage. For each object, a new check box must be created.
===Ideas for resource creation===
<br>
<gallery mode="packed" heights="250px" caption="Check box created">
File:Geogebra checkbox.png
File:Selecting object linked to checkbox.png </gallery>
In the first image above, the view shows how a check box looks when created. This check box is linked to the text box describing an angle type; when it is checked the text box displays. Otherwise the text box is not displayed.<gallery>
File:How a checkbox looks.png
File:Object displays when checkbox is selected.png
</gallery>
