PoojaMoolya at 10:09, 10 October 2019

2019-10-10T10:09:12Z

PoojaMoolya: Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- |00:01 | Welcome to the Spoken Tutorial on '''Create Action Object Tools''' in''' GeoGebra.''' |- |00:07 |In this tutorial we wi..."

2019-10-10T10:06:39Z

Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- |00:01 | Welcome to the Spoken Tutorial on '''Create Action Object Tools''' in''' GeoGebra.''' |- |00:07 |In this tutorial we wi..."

New page

{|border=1
||'''Time'''
||'''Narration'''

|-
|00:01
| Welcome to the Spoken Tutorial on '''Create Action Object Tools''' in''' GeoGebra.'''

|-
|00:07
|In this tutorial we will learn about '''free''' and '''dependent''' '''Objects'''.

|-
|00:14
| We will also learn to,

Create a '''check-box'''

Create an '''insert button'''

Insert an '''input box'''

|-
|00:23
| To record this tutorial, I am using;

'''Ubuntu Linux OS''' version 16.04

'''GeoGebra''' version 5.0438.0-d

|-
|00:36
| To follow this tutorial, learner should be familiar with '''GeoGebra interface'''. For the prerequisite GeoGebra tutorials, please visit this site.

|-
|00:47
| In this tutorial we will use''' tangents to a circle''' tool created in the previous tutorial.

|-
|00:54
| To practise this tutorial you need to download the '''zip file''' given in the '''Code files''' link.

|-
|01:00
| Extract the downloaded '''zip file.'''Locate '''tangents-circle.ggt '''file in the extracted folder.

|-
|01:10
| I have already downloaded and extracted the file to my '''Desktop'''.

|-
|01:15
| I will right-click on it and '''Open With GeoGebra.'''

|-
|01:20
| Click on '''Tangents to a circle tool '''and click two points in the '''Graphics view'''.

|-
|01:28
| Tangents to a circle are drawn in the '''Graphics view.'''

|-
|01:32
|Now I will explain about '''Free''' and '''Dependent''' '''Objects'''.

|-
|01:37
| Let us complete the figure.

|-
|01:40
| Click on the '''Intersect''' tool. Mark points of intersection of the tangents to the circle.

|-
|01:49
| Using the '''Segment''' tool we will join '''A C, A D''' and '''A B'''.

|-
|02:00
| In the '''Algebra view,''' note that segment '''AC''' is equal to segment '''AD'''.
They are radii of the circle '''c'''.

|-
|02:09
| Now let's measure the angles at the point of contact of the tangents to the circle.

|-
|02:15
| Click on the '''Angle''' tool and click on the points '''B, C, A.''' and then click on the points '''A, D, B.'''

|-
|02:32
| Observe that the angles alpha and beta are 90 degrees.

|-
|02:37
| This is because at the point of contact, tangent to a circle is perpendicular to the radius.

|-
|02:44
|In the '''Algebra view''', click on the arrow triangle named as '''Toggle Style Bar.'''

|-
|02:50
| '''Auxillary Objects''', '''Sort Objects by '''drop-down and '''fx''' drop-down appear.

|-
|02:58
| Click on '''Sort Objects by''' drop-down.'''Sort by''' menu opens.

|-
|03:05
| This menu has, '''Dependency''', '''Object Type''', '''Layer''' and '''Construction Order check-boxes.'''

|-
|03:15
| By default, '''Object Type check-box '''is selected.

|-
|03:19
| In other operating systems a different check-box may be selected.

|-
|03:24
| Let us select '''Dependency check-box'''.

|-
|03:28
|Note that only points '''A''' and '''B''' are under '''Free''' '''Objects'''. All other '''objects '''are under '''Dependent Objects'''.

|-
|03:38
| You can select other check-boxes and see how the objects are sorted.

|-
|03:45
| Now we will learn how to create a '''check-box'''.

|-
| 03:49
|Click on the '''Check Box''' tool and click in the '''Graphics view'''.

|-
|03:56
| '''Check Box to Show/hide Objects '''dialog box opens.

|-
|04:00
| In the '''Caption '''text box, I will type '''Angles.'''

|-
|04:04
|From the '''Select objects''' drop-down, let us select '''Angle alpha '''and '''Angle beta'''.

|-
|04:12
| Then click on '''Apply''' button in the box.

|-
|04:16
| '''Angles check-box''' appears in the '''Graphics view'''.

|-
|04:20
| Let us click on '''Move''' tool to avoid clicking of other objects in the '''Graphics view'''.

|-
|04:27
| '''Angles check-box''' is shown as a '''Boolean''' '''Value''' '''a '''in the''' views.'''

|-
|04:33
| Using this '''check-box,''' we can show or hide the angles '''alpha '''and '''beta.'''

|-
|04:39
| In the '''Algebra view,''' '''Boolean Value''' is '''true''' when the angles are shown.

|-
|04:44
| '''Boolean Value''' becomes '''false '''when they are hidden.

|-
|04:49
| Now we will insert an '''input box'''.

|-
|04:51
| Click on the '''Input Box''' tool and click in the '''Graphics view'''.

|-
|04:59
| '''Input Box''' appears in the '''Graphics view'''.

|-
|05:02
| In the '''box,''' type the '''Caption''' as '''Circle'''.

|-
|05:06
| In the '''Linked Object '''drop-down, select '''circle c.''' And click on '''OK''' button in the box.

|-
|05:14
| '''Circle input box''', along with its coordinates, appears in the '''Graphics view'''.

|-
|05:20
| Click on '''Move''' tool to select it.

|-
|05:23
|In the input box, type '''B''' in place of '''A''' and press '''Enter'''.

|-
|05:29
| The tangents, angles and all related objects disappear.

|-
|05:34
| Position of the circle has also changed

|-
|05:38
| This happens because all the objects are dependent on point '''A'''.

|-
|05:44
|As an assignment,

In the circle input box change '''(A,B)''' to''' (B,A)''' and '''(A,A)''' and see what happens.

Explain your observation.

|-
|05:57
| Click on '''Undo''' button to undo the changes

|-
|06:01
|Now, we will learn how to create a '''button'''.

|-
|06:04
| Click on the '''Button''' tool and click in the '''Graphics view'''.

|-
|06:10
| The '''Button '''dialog box opens.

|-
|06:13
| Type '''Caption''' as '''Value'''.

|-
|06:16
| In '''GeoGebra Script box''' type the following '''script.'''

|-
|06:20
| Now I will explain the '''script'''.

|-
|06:23
| This line will change the position of the coordinates of '''A''' to '''A-1'''

This means that the x coordinate of '''A''' becomes x-1 and y coordinate of A becomes y-l.

|-
|06:37
| Similarly this line will change the poistion of the coordinates of '''B''' to '''B+2'''.

|-
|06:43
| This line will set the colour of segment '''j''' to blue.

|-
|06:47
| This line will set the colour of segment '''h''' to green.

|-
|06:51
| This line will set the colour of segment '''i''' to red.

|-
|06:55
|Click on the '''OK '''button at the bottom.

|-
|06:58
| '''Value button''' appears in the '''Graphics view'''.

|-
|07:02
| Select the '''Move''' tool and Click on '''value button.'''

|-
|07:08
|Observe the changes in the '''Graphics view.'''

|-
|07:11
| Observe that the coordinates of point '''A '''and point '''B '''have changed.

|-
|07:16
| The colours of the segments have changed accordingly.

|-
|07:20
| Click on '''Zoom Out''' tool and click in the '''Graphics veiw''' to zoom out.

|-
|07:26
| I will click the '''Value button''' again.
Observe the changes in the coordinates of points '''A '''and '''B.'''

|-
|07:35
| As an assignment,

Create a new '''button'''.

Write a GeoGebra script to change the colour and position of the points A and B.

|-
|07:46
| Now we will combine action tools and see what happens.

|-
|07:51
|I have opened a new '''GeoGebra''' window.

|-
|07:55
|Click on the '''Slider''' tool and click in the '''Graphics''' '''view'''.

|-
|08:01
| The '''Slider '''dialog box opens.

|-
|08:04
| By default, '''Number '''radio button is selected with '''Name''' as '''a.'''

We will leave it as it is.

|-
|08:13
| We will set the '''Min''' value to 1, '''Max''' to 10 and '''Increment''' to 1.

|-
|08:21
| Click on '''OK '''button at the bottom. A number slider '''a '''appears in the '''Graphics view'''.

|-
|08:28
| Now click on '''Regular Polygon''' tool and click two points in the '''Graphics view.'''

|-
|08:36
|'''Regular Polygon '''text box opens. In the '''Vertices''' text box, type '''a '''and click '''OK '''in the box.

|-
|08:46
|Notice in the '''Algebra view''', under '''Polygon''' we have '''poly1 undefined'''.

|-
|08:52
|As a we drag the slider, notice that polygons with different sides appear.

|-
|09:05
|| Now we will insert an '''input box'''.

|-
|09:08
| Click on '''Input Box '''tool and click in the '''Graphics view'''.

|-
|09:15
| '''Input '''dailog box opens.

|-
|09:18
| Type the '''Caption''' as '''Number of sides''' in the box.

|-
|09:22
| Select '''a=1''' in the '''Linked Object''' drop-down. Click on '''OK '''button in the text box.

|-
|09:30
| '''Number of sides input box''' appears in the '''Graphics view.'''

|-
|09:35
| In the '''Algebra view''', uncheck the number slider '''a=1 '''to hide the slider.

|-
|09:41
| In the '''Number of sides input box, '''type 4 and press '''Enter'''. You will see a square.

|-
|09:50
|Likewise, you can type any number between 3 to 10 and see the respective polygon.

|-
|09:57
| As an assignment,

Create a check box to show and hide the slider and the input box.

|-
|10:04
|Let us summarise.

In this tutorial we have learnt about''' free''' and '''dependent''' '''objects'''.

|-
|10:12
| We have also learnt to,

Create a '''check-box'''

Create an '''insert button'''

Insert an '''input box'''

|-
|10:22
| The video at the following link summarizes the Spoken Tutorial project. Please download and watch it.

|-
|10:30
| The '''Spoken Tutorial Project '''team conducts workshops and gives certificates. For more details, please write to us.

|-
|10:38
| Please post your timed queries in this forum.

|-
|10:42
| Spoken Tutorial Project is funded by '''NMEICT''', '''MHRD,''' Government of India. More information on this mission is available at this link.

|-
|10:54
| This is Madhuri Ganapathi from, IIT Bombay signing off. Thank you for watching.

|}

@@ Line 27: / Line 27: @@
 '''Ubuntu Linux OS''' version 16.04
-'''GeoGebra''' version 5.0438.0-d
+'''GeoGebra''' version 5.0.438.0-d
 |-

GeoGebra-5.04/C3/Create-action-object-Tools/English-timed - Revision history

PoojaMoolya at 10:09, 10 October 2019

PoojaMoolya: Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- |00:01 | Welcome to the Spoken Tutorial on '''Create Action Object Tools''' in''' GeoGebra.''' |- |00:07 |In this tutorial we wi..."