Difference between revisions of "KTurtle/C2/Introduction-to-KTurtle/English-timed"

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|-
 
|-
 
|00:01
 
|00:01
−
||Hello everybody. Welcome to this tutorial on '''Introduction to KTurtle.'''  
+
|Hello everybody. Welcome to this tutorial on '''Introduction to KTurtle.'''  
  
 
|-
 
|-
 
|00:07
 
|00:07
−
||In this tutorial, I will introduce you to the basics of getting started with '''KTurtle.'''  
+
|In this tutorial, I will introduce you to the basics of getting started with '''KTurtle.'''  
  
 
|-
 
|-
Line 17: Line 17:
 
|-
 
|-
 
|00:17
 
|00:17
−
||* '''KTurtle Window'''
+
|'''KTurtle Window'''
  
 
|-
 
|-
 
|00:19
 
|00:19
−
||* '''Editor'''  
+
|'''Editor''','''Canvas'''  
−
 
+
−
|-
+
−
|00:20
+
−
|* '''Canvas'''  
+
  
 
|-
 
|-
 
|00:21
 
|00:21
−
||* Menu Bar  
+
|Menu Bar,Toolbar.  
−
 
+
−
|-
+
−
|00:22
+
−
||* Toolbar.  
+
  
 
|-
 
|-
 
|00:24
 
|00:24
−
||We will also learn about:
+
|We will also learn about:
  
 
|-
 
|-
 
|00:26
 
|00:26
−
||* Moving the '''Turtle'''  
+
|Moving the '''Turtle'''  
  
 
|-
 
|-
 
|00:28
 
|00:28
−
||* Drawing lines and changing directions
+
|Drawing lines and changing directions
  
 
|-
 
|-
 
|00:32
 
|00:32
−
|* Draw a triangle.  
+
|Draw a triangle.  
  
 
|-
 
|-
 
|00:34
 
|00:34
−
|To record this tutorial, I am using:  
+
|To record this tutorial, I am using: '''Ubuntu Linux OS''' version '''12.04'''.KTurtle version '''0.8.1 beta'''.  
−
* '''Ubuntu Linux OS''' version '''12.04'''.
+
−
* KTurtle version '''0.8.1 beta'''.  
+
  
 
|-
 
|-
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|-
 
|-
 
|00:49
 
|00:49
−
||'''KTurtle''' is a free tool to learn basic programming.  
+
|'''KTurtle''' is a free tool to learn basic programming.  
  
 
|-
 
|-
 
|00:53
 
|00:53
−
||It is useful for computer aided interactive learning.
+
|It is useful for computer aided interactive learning.
  
 
|-
 
|-
 
|00:59
 
|00:59
−
||'''KTurtle''' is  available for download at: http://edu.kde.org/kturtle/  
+
|'''KTurtle''' is  available for download at: http://edu.kde.org/kturtle/  
 +
 
 
|-
 
|-
−
||01:12
+
|01:12
−
||'KTurtle'- * makes programming easy and accessible.
+
|'KTurtle'- * makes programming easy and accessible.
  
 
|-
 
|-
 
|01:18
 
|01:18
−
||* Helps teach kids basics of mathematics.
+
|Helps teach kids basics of mathematics.
  
 
|-
 
|-
 
|01:22
 
|01:22
−
|* Translates '''command'''s to speaking language of the programmer.  
+
|Translates '''command'''s to speaking language of the programmer.  
  
 
|-
 
|-
 
|01:27
 
|01:27
−
|* Translates '''command'''s into visuals.
+
|Translates '''command'''s into visuals.
  
 
|-
 
|-
−
|01.31
+
|01:31
−
| We can install  '''KTurtle''' using '''Synaptic Package Manager .'''
+
|We can install  '''KTurtle''' using '''Synaptic Package Manager .'''
  
 
|-
 
|-
Line 98: Line 89:
 
|-
 
|-
 
|01:40
 
|01:40
−
|| please refer to '''Ubuntu Linux tutorials''' on our website: http://spoken-tutorial.org   
+
|please refer to '''Ubuntu Linux tutorials''' on our website: http://spoken-tutorial.org   
  
 
|-
 
|-
−
||01:46
+
|01:46
−
||Let's open a new 'KTurtle' '''Application'''.  
+
|Let's open a new 'KTurtle' '''Application'''.  
  
 
|-
 
|-
 
|01:50
 
|01:50
−
||Click on '''Dash home'''.   
+
|Click on '''Dash home'''.   
  
 
|-
 
|-
 
|01:52
 
|01:52
−
||In the Search bar, type: "KTurtle"   
+
|In the Search bar, type: "KTurtle"   
  
 
|-
 
|-
 
|01:55
 
|01:55
−
||and click on the '''KTurtle''' icon.  
+
|and click on the '''KTurtle''' icon.  
  
 
|-
 
|-
−
||01:59
+
|01:59
−
||A typical '''KTurtle window''' looks like this.  
+
|A typical '''KTurtle window''' looks like this.  
  
 
|-
 
|-
 
|02:02
 
|02:02
−
||This is the Menu-bar.
+
|This is the Menu-bar.
  
 
|-
 
|-
 
|02:04
 
|02:04
−
||In the menu-bar, on the top,  
+
|In the menu-bar, on the top,  
  
 
|-
 
|-
Line 141: Line 132:
  
 
|-
 
|-
−
||02:23
+
|02:23
−
||'''Editor''' is on the left where you can type the '''TurtleScript''' commands.  
+
|'''Editor''' is on the left where you can type the '''TurtleScript''' commands.  
  
 
|-
 
|-
Line 149: Line 140:
  
 
|-
 
|-
−
||02:37
+
|02:37
−
||There are several ways to enter the '''code''' in the editor.  
+
|There are several ways to enter the '''code''' in the editor.  
  
 
|-
 
|-
 
|02:42
 
|02:42
−
||Easiest way is to use an example.  
+
|Easiest way is to use an example.  
  
 
|-
 
|-
 
|02:46
 
|02:46
−
||Go to  '''File''' menu > select  '''Examples'''.  
+
|Go to  '''File''' menu > select  '''Examples'''.  
  
 
|-
 
|-
 
|02:50
 
|02:50
−
||Here, I will select a '''flower'''.
+
|Here, I will select a '''flower'''.
  
 
|-
 
|-
 
|02:53
 
|02:53
−
||Code of the selected example opens in the editor.  
+
|Code of the selected example opens in the editor.  
  
 
|-
 
|-
 
|02:58
 
|02:58
−
||Click on the '''Run''' button, from '''Menu bar''' or ''' Tool bar''', to '''run''' the code.  
+
|Click on the '''Run''' button, from '''Menu bar''' or ''' Tool bar''', to '''run''' the code.  
  
 
|-
 
|-
 
|03:04
 
|03:04
−
||Another way is to directly type your own code in the editor
+
|Another way is to directly type your own code in the editor
  
 
|-
 
|-
 
|03:10
 
|03:10
−
||or '''copy/paste''' some code in the editor.  
+
|or '''copy/paste''' some code in the editor.  
  
 
|-
 
|-
 
|03:13
 
|03:13
−
||For example, from other '''KTurtle''' files.
+
|For example, from other '''KTurtle''' files.
 +
 
 
|-
 
|-
−
||03:18
+
|03:18
−
||Canvas is on the right where '''Turtle''' makes your drawings.  
+
|Canvas is on the right where '''Turtle''' makes your drawings.  
  
 
|-
 
|-
 
|03:24
 
|03:24
−
||'''Turtle''' draws according to the commands it gets from the editor on the canvas.  
+
|'''Turtle''' draws according to the commands it gets from the editor on the canvas.  
  
 
|-
 
|-
−
||03:32
+
|03:32
−
||'''Run''' option on the toolbar starts  execution of the commands in the '''editor'''.  
+
|'''Run''' option on the toolbar starts  execution of the commands in the '''editor'''.  
  
 
|-
 
|-
 
|03:39
 
|03:39
−
||It presents a list of execution speeds.  
+
|It presents a list of execution speeds.  
  
 
|-
 
|-
 
|03:43
 
|03:43
−
||'''Full speed (No highlighting and inspector),'''
+
|'''Full speed (No highlighting and inspector),'''
  
 
|-
 
|-
 
|03:46
 
|03:46
−
||'''Full speed,'''  
+
|'''Full speed,'''  
  
 
|-
 
|-
 
|03:48
 
|03:48
−
||'''Slow,'''
+
|'''Slow''','''Slower'''  
−
 
+
−
|-
+
−
|03:49
+
−
||'''Slower,'''  
+
  
 
|-
 
|-
 
|03:51
 
|03:51
−
||'''Slowest''' and  
+
|'''Slowest''' and ,'''Step-by-Step'''.
  
 
|-
 
|-
−
|03:52
+
|03:55
−
||'''Step-by-Step'''.  
+
|'''Abort''' and  '''Pause''' options allow you to stop and pause the executions respectively.
  
 
|-
 
|-
−
|03:55
+
|04:03
−
||'''Abort''' and  '''Pause''' options allow you to stop and pause the executions respectively.
+
|Let's now '''Run''' this code.
−
|-
+
−
||04:03
+
−
||Let's now '''Run''' this code.
+
  
 
|-
 
|-
 
|04:06
 
|04:06
−
||'''Turtle''' draws a flower on the canvas.
+
|'''Turtle''' draws a flower on the canvas.
 +
 
 
|-
 
|-
−
||04:11
+
|04:11
−
||When you open a new '''KTurtle''' application,
+
|When you open a new '''KTurtle''' application,
  
 
|-
 
|-
−
||04:15
+
|04:15
−
||'''Turtle''' is in the middle of the canvas by '''default.'''  
+
|'''Turtle''' is in the middle of the canvas by '''default.'''  
  
 
|-
 
|-
−
||04:19
+
|04:19
−
||Let's now move the '''Turtle.'''
+
|Let's now move the '''Turtle.'''
  
 
|-
 
|-
−
||04:22
+
|04:22
−
||'''Turtle''' can do three types of moves:  
+
|'''Turtle''' can do three types of moves:  
  
 
|-
 
|-
−
||04:25
+
|04:25
−
||It can move forward, it can move backwards.
+
|It can move forward, it can move backwards.
  
 
|-
 
|-
−
||04:29
+
|04:29
−
||It can turn left or right.  
+
|It can turn left or right.  
  
 
|-
 
|-
−
||04:32
+
|04:32
−
||It can also jump directly to a position on the screen.  
+
|It can also jump directly to a position on the screen.  
 +
 
 
|-
 
|-
−
||04:38
+
|04:38
−
||Let me zoom into the program text, it may possibly be a little blurred.
+
|Let me zoom into the program text, it may possibly be a little blurred.
 +
 
 
|-
 
|-
−
||04:44
+
|04:44
−
||Let us go through a simple example.  
+
|Let us go through a simple example.  
  
 
|-
 
|-
−
||04:48
+
|04:48
−
||In your editor, type the following commands:  
+
|In your editor, type the following commands:  
  
 
|-
 
|-
−
||04:52
+
|04:52
−
||'''"reset" '''   
+
|'''"reset" '''   
  
 
|-
 
|-
−
||04:55
+
|04:55
−
||'''"forward 100"'''  
+
|'''"forward 100"'''  
  
 
|-
 
|-
−
||04:58
+
|04:58
−
||'''"turnright 120" '''
+
|'''"turnright 120" '''
  
 
|-
 
|-
−
||05:02
+
|05:02
−
||'''"forward 100"'''  
+
|'''"forward 100"'''  
  
 
|-
 
|-
−
||05:07
+
|05:07
−
||'''"turnright 120"'''  
+
|'''"turnright 120"'''  
  
 
|-
 
|-
−
||05:11  
+
|05:11  
−
||'''"forward 100"'''  
+
|'''"forward 100"'''  
  
 
|-
 
|-
−
||05:15
+
|05:15
−
||'''"turnright 120"'''  
+
|'''"turnright 120"'''  
 +
 
 
|-
 
|-
−
||05:18
+
|05:18
−
||Note that the color of the code changes as we type.  
+
|Note that the color of the code changes as we type.  
  
 
|-
 
|-
−
||05:23
+
|05:23
−
||This feature is called '''highlighting.'''
+
|This feature is called '''highlighting.'''
  
 
|-
 
|-
−
||05:26
+
|05:26
−
||Different types of commands are highlighted differently  
+
|Different types of commands are highlighted differently  
  
 
|-
 
|-
−
||05:31
+
|05:31
−
||which makes it easier to read large '''block'''s of code.
+
|which makes it easier to read large '''block'''s of code.
 +
 
 
|-
 
|-
−
||05:36
+
|05:36
−
||I will explain the code now.  
+
|I will explain the code now.  
 +
 
 
|-
 
|-
−
|| 05:38
+
|05:38
−
||'''reset''' command sets Turtle to  '''default''' position.  
+
|'''reset''' command sets Turtle to  '''default''' position.  
  
 
|-
 
|-
−
||05:42
+
|05:42
−
||'''forward 100''' commands Turtle to move forward by 100 pixels.  
+
|'''forward 100''' commands Turtle to move forward by 100 pixels.  
  
 
|-
 
|-
−
||05:49
+
|05:49
−
||'''turnright 120'''  commands '''Turtle''' to turn 120 degrees anti-clockwise.  
+
|'''turnright 120'''  commands '''Turtle''' to turn 120 degrees anti-clockwise.  
  
 
|-
 
|-
−
||05:56
+
|05:56
−
||Note that these two commands are repeated thrice to draw a triangle.  
+
|Note that these two commands are repeated thrice to draw a triangle.  
 +
 
 
|-
 
|-
−
|| 06:03
+
|06:03
−
||Let's now execute the code.
+
|Let's now execute the code.
  
 
|-
 
|-
−
||06:06
+
|06:06
−
||I will choose ''' Slow''' step so that we understand what commands are being executed.  
+
|I will choose ''' Slow''' step so that we understand what commands are being executed.  
  
 
|-
 
|-
−
||06:16
+
|06:16
−
||Here the triangle is drawn.
+
|Here the triangle is drawn.
 +
 
 
|-
 
|-
−
||06:19
+
|06:19
−
||Let's look at another example and also learn how to beautify our canvas.  
+
|Let's look at another example and also learn how to beautify our canvas.  
  
 
|-
 
|-
−
||06:26
+
|06:26
−
||Let's draw a triangle using '''repeat''' command.  
+
|Let's draw a triangle using '''repeat''' command.  
 +
 
 
|-
 
|-
−
||06:30
+
|06:30
−
||I will clear the current program.
+
|I will clear the current program.
 +
 
 
|-
 
|-
−
||06:33
+
|06:33
−
||Let me zoom into the program text to have a clear view.
+
|Let me zoom into the program text to have a clear view.
 +
 
 
|-
 
|-
−
||06:38
+
|06:38
−
||Type the following commands into your editor:  
+
|Type the following commands into your editor:  
  
 
|-
 
|-
−
||06:41
+
|06:41
−
||'''reset'''  
+
|'''reset'''  
  
 
|-
 
|-
−
||06:44
+
|06:44
−
||'''canvassize''' space '''200, 200'''  
+
|'''canvassize''' space '''200, 200'''  
  
 
|-
 
|-
−
||06:51
+
|06:51
−
||'''canvascolor''' space '''0, 255, 0'''   
+
|'''canvascolor''' space '''0, 255, 0'''   
  
 
|-
 
|-
−
||07:00
+
|07:00
−
||'''pencolor''' space '''0, 0, 255'''   
+
|'''pencolor''' space '''0, 0, 255'''   
  
 
|-
 
|-
−
||07:08
+
|07:08
−
||'''penwidth''' space '''2'''  
+
|'''penwidth''' space '''2'''  
  
 
|-
 
|-
−
||07:12
+
|07:12
−
||'''repeat''' space '''3'''  within curly braces {  
+
|'''repeat''' space '''3'''  within curly braces {  
  
 
|-
 
|-
−
||07:19
+
|07:19
−
||'''forward 100'''  
+
|'''forward 100'''  
  
 
|-
 
|-
−
||07:23
+
|07:23
−
||'''turnleft 120'''  
+
|'''turnleft 120'''  
−
}
+
 
|-
 
|-
−
|| 07:27
+
|07:27
−
||Let me now explain the code.
+
|Let me now explain the code.
 +
 
 
|-
 
|-
−
||07:30
+
|07:30
−
||'''reset''' command sets '''Turtle''' to its '''default''' position.
+
|'''reset''' command sets '''Turtle''' to its '''default''' position.
 +
 
 
|-
 
|-
−
||07:34
+
|07:34
−
||'''canvassize 200, 200''' sets the canvas width and height to 200 pixels.
+
|'''canvassize 200, 200''' sets the canvas width and height to 200 pixels.
 +
 
 
|-
 
|-
−
||07:42
+
|07:42
−
||'''canvascolor 0, 255, 0'''  makes the canvas green.  
+
|'''canvascolor 0, 255, 0'''  makes the canvas green.  
  
 
|-
 
|-
−
||07:48
+
|07:48
−
||'''0, 255 ,0''' is a '''RGB''' combination  where only the green value is set to '''255''' and  the others are set to '''0'''.  
+
|'''0, 255 ,0''' is a '''RGB''' combination  where only the green value is set to '''255''' and  the others are set to '''0'''.  
 +
 
 
|-
 
|-
−
||08:03
+
|08:03
−
||This makes the canvas  '''green''' in color.  
+
|This makes the canvas  '''green''' in color.  
 +
 
 
|-
 
|-
−
|| 08:07
+
|08:07
−
||'''pencolor 0, 0, 255''' sets the color of the pen to blue.  
+
|'''pencolor 0, 0, 255''' sets the color of the pen to blue.  
  
 
|-
 
|-
−
||08:14
+
|08:14
−
||'''RGB''' combination where blue value is set to '''255.'''  
+
|'''RGB''' combination where blue value is set to '''255.'''  
 +
 
 
|-
 
|-
−
||08:20
+
|08:20
−
||'''penwidth 2''' sets the width of the pen to 2 ''' pixels'''.  
+
|'''penwidth 2''' sets the width of the pen to 2 ''' pixels'''.  
 +
 
 
|-
 
|-
−
||08:27
+
|08:27
−
||'''repeat''' command is followed by a number  and a list of commands within curly brackets.  
+
|'''repeat''' command is followed by a number  and a list of commands within curly brackets.  
  
 
|-
 
|-
−
||08:33
+
|08:33
−
||This repeats the commands within the curly brackets, the specified number of times.  
+
|This repeats the commands within the curly brackets, the specified number of times.  
 +
 
 
|-
 
|-
−
||08:39
+
|08:39
−
||Here, the commands '''forward 100''' and '''turnleft 120''' are within curly brackets.
+
|Here, the commands '''forward 100''' and '''turnleft 120''' are within curly brackets.
  
 
|-
 
|-
−
||08:47-
+
|08:47
−
||'''repeat''' command is followed by the number '''3''' because a triangle has 3 sides.
+
|'''repeat''' command is followed by the number '''3''' because a triangle has 3 sides.
  
 
|-
 
|-
−
||08:54
+
|08:54
−
||These commands are '''run''' 3 times in a '''loop'''.  
+
|These commands are '''run''' 3 times in a '''loop'''.  
  
 
|-
 
|-
−
||08:59
+
|08:59
−
||3 sides of the triangle are drawn.  
+
|3 sides of the triangle are drawn.  
 +
 
 
|-
 
|-
−
||09:02
+
|09:02
−
||Let's '''run''' the code now.
+
|Let's '''run''' the code now.
  
 
|-
 
|-
−
||09:05
+
|09:05
−
||I will select '''Slow'''  option for execution of the program.  
+
|I will select '''Slow'''  option for execution of the program.  
  
 
|-
 
|-
−
||09:09
+
|09:09
−
||The canvas color becomes '''green''' and  the''' Turtle''' draws a triangle.
+
|The canvas color becomes '''green''' and  the''' Turtle''' draws a triangle.
 +
 
 
|-
 
|-
−
|| 09:20
+
|09:20
−
||Let's now '''save''' the file.
+
|Let's now '''save''' the file.
  
 
|-
 
|-
−
||09:23
+
|09:23
−
||Select '''File''' menu > '''Save As '''.  
+
|Select '''File''' menu > '''Save As '''.  
  
 
|-
 
|-
−
||09:27
+
|09:27
−
||'''Save As''' dialog-box opens.
+
|'''Save As''' dialog-box opens.
  
 
|-
 
|-
−
||09:30
+
|09:30
−
||I will select '''Document''' folder for saving the file.  
+
|I will select '''Document''' folder for saving the file.  
  
 
|-
 
|-
−
||09:34
+
|09:34
−
||I will type the file name as "triangle" and click on '''Save''' button.  
+
|I will type the file name as "triangle" and click on '''Save''' button.  
  
 
|-
 
|-
−
||09:41
+
|09:41
−
||Notice that the name of the file appears in the top panel and it is saved as a '''dot turtle''' file, like all '''Turtle''' files.
+
|Notice that the name of the file appears in the top panel and it is saved as a '''dot turtle''' file, like all '''Turtle''' files.
 +
 
 
|-
 
|-
−
||09:53
+
|09:53
−
||With this we come to the end of this tutorial.
+
|With this we come to the end of this tutorial.
  
 
|-
 
|-
−
||09:57
+
|09:57
−
||Let's summarize.
+
|Let's summarize.
 +
 
 
|-
 
|-
 
|09:59
 
|09:59
−
||In this tutorial, we have learnt about:
+
|In this tutorial, we have learnt about:
  
 
|-
 
|-
−
||10:02
+
|10:02
−
||* KTurtle's '''editor, canvas, menubar''' and '''toolbar'''  
+
|KTurtle's '''editor, canvas, menubar''' and '''toolbar'''  
  
 
|-
 
|-
−
||10:07
+
|10:07
−
||* Move Turtle  
+
|Move Turtle  
  
 
|-
 
|-
−
||10:09
+
|10:09
−
||* Draw lines and change directions  
+
|Draw lines and change directions  
  
 
|-
 
|-
−
||10:13
+
|10:13
−
||* Draw a triangle.
+
|Draw a triangle.
 +
 
 
|-
 
|-
−
||10:15
+
|10:15
−
||As an assignment, I would like you to * draw a square using the  commands-
+
|As an assignment, I would like you to * draw a square using the  commands-
  
 
|-
 
|-
−
||10:21
+
|10:21
−
|| '''forward, backward, turnleft, turnright''' and '''repeat'''.  
+
|'''forward, backward, turnleft, turnright''' and '''repeat'''.  
  
 
|-
 
|-
−
||10:26
+
|10:26
−
||* Set '''background color''', '''penwidth''' and '''pencolor''' of your choice.  
+
|Set '''background color''', '''penwidth''' and '''pencolor''' of your choice.  
  
 
|-
 
|-
−
||10:32
+
|10:32
−
||* Change values in the ''' RGB''' combination.
+
|Change values in the ''' RGB''' combination.
 +
 
 
|-
 
|-
−
|| 10:37
+
|10:37
−
||Watch the video available at this URL:
+
|Watch the video available at this URL:
 
http://spoken-tutorial.org/What_is_a_Spoken-Tutorial
 
http://spoken-tutorial.org/What_is_a_Spoken-Tutorial
  
 
|-
 
|-
−
||10:40
+
|10:40
−
||It summarizes the Spoken Tutorial project.
+
|It summarizes the Spoken Tutorial project.
  
 
|-
 
|-
−
||10:44
+
|10:44
−
||If you do not have good bandwidth, you can download and watch it.  
+
|If you do not have good bandwidth, you can download and watch it.  
 +
 
 
|-
 
|-
−
||10:48
+
|10:48
−
||The Spoken Tutorial Project team:  
+
|The Spoken Tutorial Project team:  
  
 
|-
 
|-
−
||10:50
+
|10:50
−
||* Conducts workshops using spoken tutorials.
+
|Conducts workshops using spoken tutorials.
  
 
|-
 
|-
−
||10:53
+
|10:53
−
||* Gives certificates to those who pass an online test.  
+
|Gives certificates to those who pass an online test.  
  
 
|-
 
|-
−
||10:56
+
|10:56
−
||For more details, please write to:
+
|For more details, please write to:'''contact@spoken-tutorial.org'''  
−
'''contact@spoken-tutorial.org'''  
+
 
 
|-
 
|-
−
||11:03
+
|11:03
−
||'''Spoken Tutorial''' project is a part of the '''Talk to a Teacher''' project.  
+
|'''Spoken Tutorial''' project is a part of the '''Talk to a Teacher''' project.  
  
 
|-
 
|-
−
||11:08
+
|11:08
−
||It is supported by the National Mission on Education  through ICT, MHRD, Government of India.
+
|It is supported by the National Mission on Education  through ICT, MHRD, Government of India.
  
 
|-
 
|-
−
||11:15
+
|11:15
−
||More information on this mission is available at this link:
+
|More information on this mission is available at this link:
 
http://spoken-tutorial.org/NMEICT-Intro.  
 
http://spoken-tutorial.org/NMEICT-Intro.  
  
 
|-
 
|-
−
||11:20
+
|11:20
−
||The script is contributed by '''IT for Change, Bangaluru'''.
+
|The script is contributed by '''IT for Change, Bangaluru'''.
  
 
|-
 
|-
−
||11:24
+
|11:24
−
||This is Madhuri Ganpathi from '''IIT Bombay''', signing off.  
+
|This is Madhuri Ganpathi from '''IIT Bombay''', signing off.  
 
Thank you for joining.  
 
Thank you for joining.  
 
|-
 
|-

Latest revision as of 11:20, 28 March 2017

Time Narration
00:01 Hello everybody. Welcome to this tutorial on Introduction to KTurtle.
00:07 In this tutorial, I will introduce you to the basics of getting started with KTurtle.
00:14 In this tutorial, we will learn about:
00:17 KTurtle Window
00:19 Editor,Canvas
00:21 Menu Bar,Toolbar.
00:24 We will also learn about:
00:26 Moving the Turtle
00:28 Drawing lines and changing directions
00:32 Draw a triangle.
00:34 To record this tutorial, I am using: Ubuntu Linux OS version 12.04.KTurtle version 0.8.1 beta.
00:47 What is KTurtle?
00:49 KTurtle is a free tool to learn basic programming.
00:53 It is useful for computer aided interactive learning.
00:59 KTurtle is available for download at: http://edu.kde.org/kturtle/
01:12 'KTurtle'- * makes programming easy and accessible.
01:18 Helps teach kids basics of mathematics.
01:22 Translates commands to speaking language of the programmer.
01:27 Translates commands into visuals.
01:31 We can install KTurtle using Synaptic Package Manager .
01:36 For more information on Synaptic Package Manager,
01:40 please refer to Ubuntu Linux tutorials on our website: http://spoken-tutorial.org
01:46 Let's open a new 'KTurtle' Application.
01:50 Click on Dash home.
01:52 In the Search bar, type: "KTurtle"
01:55 and click on the KTurtle icon.
01:59 A typical KTurtle window looks like this.
02:02 This is the Menu-bar.
02:04 In the menu-bar, on the top,
02:06 you will find menu items-
02:08 File, Edit, Canvas, Run, Tools, Settings and Help options.
02:17 In the toolbar, you can reach for most of the actions used.
02:23 Editor is on the left where you can type the TurtleScript commands.
02:30 Most of the functions of the editor can be found in the File and Edit menus.
02:37 There are several ways to enter the code in the editor.
02:42 Easiest way is to use an example.
02:46 Go to File menu > select Examples.
02:50 Here, I will select a flower.
02:53 Code of the selected example opens in the editor.
02:58 Click on the Run button, from Menu bar or Tool bar, to run the code.
03:04 Another way is to directly type your own code in the editor
03:10 or copy/paste some code in the editor.
03:13 For example, from other KTurtle files.
03:18 Canvas is on the right where Turtle makes your drawings.
03:24 Turtle draws according to the commands it gets from the editor on the canvas.
03:32 Run option on the toolbar starts execution of the commands in the editor.
03:39 It presents a list of execution speeds.
03:43 Full speed (No highlighting and inspector),
03:46 Full speed,
03:48 Slow,Slower
03:51 Slowest and ,Step-by-Step.
03:55 Abort and Pause options allow you to stop and pause the executions respectively.
04:03 Let's now Run this code.
04:06 Turtle draws a flower on the canvas.
04:11 When you open a new KTurtle application,
04:15 Turtle is in the middle of the canvas by default.
04:19 Let's now move the Turtle.
04:22 Turtle can do three types of moves:
04:25 It can move forward, it can move backwards.
04:29 It can turn left or right.
04:32 It can also jump directly to a position on the screen.
04:38 Let me zoom into the program text, it may possibly be a little blurred.
04:44 Let us go through a simple example.
04:48 In your editor, type the following commands:
04:52 "reset"
04:55 "forward 100"
04:58 "turnright 120"
05:02 "forward 100"
05:07 "turnright 120"
05:11 "forward 100"
05:15 "turnright 120"
05:18 Note that the color of the code changes as we type.
05:23 This feature is called highlighting.
05:26 Different types of commands are highlighted differently
05:31 which makes it easier to read large blocks of code.
05:36 I will explain the code now.
05:38 reset command sets Turtle to default position.
05:42 forward 100 commands Turtle to move forward by 100 pixels.
05:49 turnright 120 commands Turtle to turn 120 degrees anti-clockwise.
05:56 Note that these two commands are repeated thrice to draw a triangle.
06:03 Let's now execute the code.
06:06 I will choose Slow step so that we understand what commands are being executed.
06:16 Here the triangle is drawn.
06:19 Let's look at another example and also learn how to beautify our canvas.
06:26 Let's draw a triangle using repeat command.
06:30 I will clear the current program.
06:33 Let me zoom into the program text to have a clear view.
06:38 Type the following commands into your editor:
06:41 reset
06:44 canvassize space 200, 200
06:51 canvascolor space 0, 255, 0
07:00 pencolor space 0, 0, 255
07:08 penwidth space 2
07:12 repeat space 3 within curly braces {
07:19 forward 100
07:23 turnleft 120
07:27 Let me now explain the code.
07:30 reset command sets Turtle to its default position.
07:34 canvassize 200, 200 sets the canvas width and height to 200 pixels.
07:42 canvascolor 0, 255, 0 makes the canvas green.
07:48 0, 255 ,0 is a RGB combination where only the green value is set to 255 and the others are set to 0.
08:03 This makes the canvas green in color.
08:07 pencolor 0, 0, 255 sets the color of the pen to blue.
08:14 RGB combination where blue value is set to 255.
08:20 penwidth 2 sets the width of the pen to 2 pixels.
08:27 repeat command is followed by a number and a list of commands within curly brackets.
08:33 This repeats the commands within the curly brackets, the specified number of times.
08:39 Here, the commands forward 100 and turnleft 120 are within curly brackets.
08:47 repeat command is followed by the number 3 because a triangle has 3 sides.
08:54 These commands are run 3 times in a loop.
08:59 3 sides of the triangle are drawn.
09:02 Let's run the code now.
09:05 I will select Slow option for execution of the program.
09:09 The canvas color becomes green and the Turtle draws a triangle.
09:20 Let's now save the file.
09:23 Select File menu > Save As .
09:27 Save As dialog-box opens.
09:30 I will select Document folder for saving the file.
09:34 I will type the file name as "triangle" and click on Save button.
09:41 Notice that the name of the file appears in the top panel and it is saved as a dot turtle file, like all Turtle files.
09:53 With this we come to the end of this tutorial.
09:57 Let's summarize.
09:59 In this tutorial, we have learnt about:
10:02 KTurtle's editor, canvas, menubar and toolbar
10:07 Move Turtle
10:09 Draw lines and change directions
10:13 Draw a triangle.
10:15 As an assignment, I would like you to * draw a square using the commands-
10:21 forward, backward, turnleft, turnright and repeat.
10:26 Set background color, penwidth and pencolor of your choice.
10:32 Change values in the RGB combination.
10:37 Watch the video available at this URL:

http://spoken-tutorial.org/What_is_a_Spoken-Tutorial

10:40 It summarizes the Spoken Tutorial project.
10:44 If you do not have good bandwidth, you can download and watch it.
10:48 The Spoken Tutorial Project team:
10:50 Conducts workshops using spoken tutorials.
10:53 Gives certificates to those who pass an online test.
10:56 For more details, please write to:contact@spoken-tutorial.org
11:03 Spoken Tutorial project is a part of the Talk to a Teacher project.
11:08 It is supported by the National Mission on Education through ICT, MHRD, Government of India.
11:15 More information on this mission is available at this link:

http://spoken-tutorial.org/NMEICT-Intro.

11:20 The script is contributed by IT for Change, Bangaluru.
11:24 This is Madhuri Ganpathi from IIT Bombay, signing off.

Thank you for joining.

Contributors and Content Editors

Devraj, Madhurig, PoojaMoolya, Pratik kamble, Sandhya.np14, Sneha

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