GeoGebra-5.04/C3/Create-and-manage-Tools/English-timed
From Script | Spoken-Tutorial
| Time | Narration |
| 00:01 | Welcome to the spoken tutorial on Create and Manage Tools. |
| 00:06 | In this tutorial we will learn to,
Customize the tool bar Create a new tool Manage the created tool and Open a new GeoGebra window and check the created tool. |
| 00:21 | To record this tutorial, I am using;
Ubuntu Linux OS version 16.04 GeoGebra version 5.0.438.0-d |
| 00:34 | To follow this tutorial, learner should be familiar with GeoGebra interface.
For the prerequisite GeoGebra tutorials, please visit this site. |
| 00:46 | I have already opened the GeoGebra interface on my machine. |
| 00:51 | For this tutorial I will un-check the axes |
| 00:56 | We will begin by customizing the tool bar. |
| 00:59 | Click on Tools menu and select Customize Toolbar option. The Customize Toolbar window opens. |
| 01:08 | The window has a drop-down to choose the views. By default, General view is selected. |
| 01:16 | The Toolbar box has a menu button next to each tool, to show the related tools. |
| 01:22 | Below the Toolbar box, we have the Up and Down arrow buttons. |
| 01:27 | I will select Line tool |
| 01:30 | These buttons are used to move the selected tool up or down the list. |
| 01:37 | At the bottom left, we have Restore Default Toolbar button, to restore the default toolbar. |
| 01:43 | Click on Restore Default Toolbar button. |
| 01:46 | Next we have Tools box. This is used to separate the tools from the Toolbar' box. |
| 01:53 | In the Toolbar box, click on the menu button next to Move to show the related tools. |
| 01:59 | Click on Move tool and then click on the Remove button. |
| 02:04 | Notice that the Move tool has moved to the Tools box. |
| 02:08 | Click on the menu button to close the Move menu. |
| 02:11 | Next click on the menu button next to Perpendicular Line to show the related tools. |
| 02:17 | Now click on Tangents tool and then click on the Remove button. |
| 02:23 | Notice that Tangents tool has also moved to the Tools box. |
| 02:28 | Click on menu button to close the Perpendicular Line menu. |
| 02:34 | Let's separate these tools from their related tools. |
| 02:38 | Select Move tool in the Tools box and click on Insert button. The Move tool is inserted as a separate tool. |
| 02:48 | Next, select Tangents tool and click on the Insert button. |
| 02:54 | Tangents tool is also inserted as a separate tool. |
| 02:58 | Now click on Apply button to apply the changes. Then click on the Close button to close the window. |
| 03:06 | Notice that Move tool and Tangents tool are shown separately on the toolbar. |
| 03:13 | Now we will learn to create a new tool. |
| 03:16 | We will begin by drawing tangents to a circle. |
| 03:20 | Click on the Circle with Centre and Radius tool. Click in the Graphics view. |
| 03:27 | Circle with Center and Radius text box opens. |
| 03:31 | In the Radius field, type 3 and click on OK button at the bottom. A circle with centre A and radius 3 cm is drawn. |
| 03:42 | Drag the boundary of the Algebra view to see the equation of the circle. |
| 03:47 | Drag the boundary to see the Graphics view clearly. |
| 03:51 | Now using Point tool we will mark an external point B on the Graphics view. |
| 03:58 | Click on Tangents tool. Then click on point B and then click on circle c. |
| 04:07 | Two tangents are drawn to the circle c from point B. |
| 04:12 | Click on the Tools menu and select Create New Tool option. |
| 04:18 | The Create New Tool dialog box opens. |
| 04:22 | In the box we have Output Objects, Input Objects and Name & Icon tabs. |
| 04:29 | By default Output Objects tab opens. |
| 04:33 | In the Output Objects tab, there is a drop-down to select objects. |
| 04:38 | From the drop-down, select
Circle c with center A and radius 3 Line f: Tangent to c through B. Line g: Tangent to c through B. |
| 04:52 | Next click on the Input Objects tab. In this tab, Point A and Point B are already selected. |
| 05:00 | Click on Name & Icon tab. In this tab we can type the Tool name and Tool help. |
| 05:07 | For the Tool name I will type Tangents to a circle. |
| 05:11 | Observe that, as I type the Tool name, the Command name automatically gets filled. |
| 05:17 | In the Tool help box, I will type Click two points. |
| 05:22 | Observe that Show in Toolbar check-box is already checked. |
| 05:27 | Lastly click on Finish button. |
| 05:30 | Geogebra Info message box with a text New tool created successfully! appears. |
| 05:37 | Click on OK button to close this message box. |
| 05:41 | Observe that, a new tool Tangents to a circle is seen on the toolbar, with a tool tip. |
| 05:47 | Let's delete all the objects from the interface. |
| 05:51 | Now let us use the tool that we have just created. |
| 05:55 | Click on the Tangents to circle tool and click two points in the Graphics view. Tangents to a circle are drawn. |
| 06:05 | We will now see how to manage the tool we have created. |
| 06:09 | Click on Tools menu and select Manage Tools option. |
| 06:14 | The Manage Tools dialog box opens. |
| 06:17 | This dialog box has Delete, Open, Save As and Share buttons. |
| 06:24 | We will save the Tangents to a circle tool. Click on Saves As button. |
| 06:31 | Save asdialog box opens. |
| 06:34 | In the File name text box I will type Tangents hyphen circle(Tangents-circle). |
| 06:39 | Note that, in the Files of type, GeoGebra Tools(.ggt) is already selected. |
| 06:46 | Select a location to save the file. I will select Desktop. |
| 06:52 | Then click on Save button at the bottom. |
| 06:56 | And click on Close button to close the dialog box. |
| 07:00 | Now I will close the Geogebra window. I'll click on File and select Close. |
| 07:08 | The Close File box opens. |
| 07:11 | It asks Do you want to save your changes? |
| 07:15 | In the box, I'll select Don't Save button as I have already saved the file. |
| 07:22 | Now we will open the saved file. |
| 07:25 | I had saved it on my Desktop as Tagents-circle.ggt. |
| 07:31 | We can open the file by double clicking on it. Or right-click and select Open With GeoGebra option. |
| 07:40 | Please note, the new tool that we have created will be available only in this file. |
| 07:46 | We don't see the tool we created, if we open a new GeoGebra window using Dash Home. |
| 07:55 | You can check it yourself. The new tool is not available in the new GeoGebra window. |
| 08:02 | Let us summarize what we have learnt. |
| 08:05 | In this tutorial we have learnt to,
Customize the tool bar Create a new tool Manage the created tool Open a new GeoGebra window and check the created tool. |
| 08:21 | As an assignment,
Create a new tool to draw altitudes of a triangle and mark the orthocenter. |
| 08:29 | Your completed assignment should look like this. |
| 08:39 | The video at the following link summarizes the Spoken Tutorial project. Please download and watch it. |
| 08:47 | The Spoken Tutorial Project team conducts workshops and gives certificates. For more details, please write to us. |
| 08:55 | Please post your timed queries in this forum. |
| 08:59 | Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India. More information on this mission is available at this link. |
| 09:10 | This is Madhuri Ganapathi from, IIT Bombay signing off. Thank you for watching. |
